SWHarden.com

The personal website of Scott W Harden

Tags:

hugo
python
csharp
graphics
circuit
microcontroller
amateur radio
blazor
maui
github
JavaScript
qrss
php
science
diyECG
med
obsolete

hugo

Static Site Broken Link Detection May 13, 2023 python hugo
Build and Deploy a Hugo Site with GitHub Actions March 20, 2022 github hugo

python

Static Site Broken Link Detection May 13, 2023 python hugo
Deploy a Website with Python and FTPS May 16, 2021 python
Managing Credentials with Python May 15, 2021 python
Exponential Fit with Python September 24, 2020 python
Signal Filtering in Python September 23, 2020 python
Microcontroller Action Potential Generator August 20, 2017 science circuit microcontroller python
Action Potential Generator Circuit August 12, 2017 science circuit microcontroller python
VHF Frequency Counter with PC Interface September 5, 2016 amateur radio circuit python obsolete
TENMA Multimeter Serial Hack August 24, 2016 python obsolete
DIY ECG with 1 op-amp August 8, 2016 diyECG python circuit
Python Real-time Audio Frequency Monitor July 31, 2016 python obsolete
Live Data in PyQt4 with PlotWidget July 31, 2016 python obsolete
Live Data in PyQt4 with MatplotlibWidget July 30, 2016 python obsolete
Realtime Audio Visualization in Python July 19, 2016 python obsolete
Epoch Timestamp Hashing April 19, 2014 python obsolete
Calculate QRSS Transmission Time with Python June 23, 2013 qrss python obsolete
Realtime image pixelmap from Numpy array data in Qt June 3, 2013 python obsolete
Wireless Microcontroller / PC Interface for $3.21 May 19, 2013 microcontroller obsolete python
Realtime FFT Audio Visualization with Python May 9, 2013 python obsolete
Realtime Data Plotting in Python May 8, 2013 python obsolete
Fixing Slow Matplotlib in Python(x,y) April 15, 2013 python obsolete
Create Mono and Stereo Wave Files with Python July 8, 2011 python obsolete
Serial Port Multi-Channel Temperature Measurement November 24, 2010 circuit microcontroller python obsolete
Quantifying University Network Frustrations September 9, 2010 python obsolete
Prime Failure 1 Year in the Making August 11, 2010 python obsolete
Converting Numbers to Morse Code with GCC August 9, 2010 python qrss obsolete
vdFSK Modulation July 22, 2010 python qrss obsolete
Getting GTK, Glade, and Python to Work in Windows June 28, 2010 python obsolete
Fast TK Pixelmap generation from 2D Numpy Arrays in Python June 24, 2010 python obsolete
Detrending Data in Python with Numpy June 24, 2010 python obsolete
Insights Into FFTs, Imaginary Numbers, and Accurate Spectrographs June 23, 2010 qrss python obsolete
Smoothing Window Data Averaging in Python - Moving Triangle Tecnique June 20, 2010 python obsolete
Simple Python Spectrograph with PyGame June 19, 2010 python obsolete
Simple-Case PyGame Example June 15, 2010 python obsolete
QRSS VD Image Assembler June 7, 2010 qrss obsolete python
Debut of the AJ4VD QRSS Fish May 19, 2010 python qrss obsolete
Generate LUTs with Python May 10, 2010 python obsolete
Overseas QRP Transmission March 9, 2010 qrss python obsolete
Dynamic Logo Generation with Python March 7, 2010 python obsolete
Animated Realtime Spectrograph with Scrolling Waterfall Display in Python March 5, 2010 python obsolete
Realtime FFT Graph of Audio WAV File or Microphone Input with Python, Scipy, and WCKgraph March 5, 2010 python obsolete
Smoothly Scroll an Image Across a Window with Tkinter vs. PyGame March 5, 2010 python obsolete
Display large Images with Scrollbars with Python, Tk, and PIL March 3, 2010 python obsolete
Convert Text to CW Morse Code with Linux February 2, 2010 amateur radio python obsolete
PySquelch: A Python-Based Frequency Audio Activity Monitor July 26, 2009 python obsolete
Reading PCM Audio with Python June 19, 2009 python obsolete
pySquelch - Frequency Activity Reports via Python June 18, 2009 amateur radio python obsolete
Graphing Computer Usage May 20, 2009 python obsolete
Analyzing my Writings with Python January 29, 2009 python obsolete
Signal Filtering with Python January 21, 2009 diyECG python obsolete
Circuits vs. Software January 15, 2009 diyECG obsolete python
DIY ECG Trial 1 January 15, 2009 diyECG python obsolete
Compress and Store Files in Python November 24, 2008 python obsolete
Linear Data Smoothing in Python November 17, 2008 obsolete python

csharp

Treemapping with C# March 28, 2023 csharp graphics
.NET Source Code Analysis March 5, 2023 csharp
Creating Bitmaps from Scratch in C# November 7, 2022 csharp graphics
Experiments in PSK-31 Synthesis October 16, 2022 amateur radio csharp
Resample Time Series Data using Cubic Spline Interpolation June 23, 2022 csharp graphics
Show A Progress Bar as your Blazor App Loads May 29, 2022 blazor csharp
Use Maui.Graphics to Draw 2D Graphics in Any .NET Application May 25, 2022 csharp graphics maui
Using DataFrames in C# May 1, 2022 csharp
Mystify your Mind with SkiaSharp April 4, 2022 csharp graphics
Generic Math in C# with .NET 6 February 3, 2022 csharp
Point Inside Rectangle February 1, 2022 csharp graphics
Spline Interpolation with C# January 22, 2022 csharp
NDepend Status Badges October 17, 2021 csharp maui
Status Badges with Maui.Graphics October 16, 2021 csharp maui graphics
MeasureString() with Maui.Graphics October 16, 2021 csharp maui graphics
Rename Image Files by Capture Date with C# October 12, 2021 csharp
Managing Secrets in .NET Console Apps October 9, 2021 csharp
Drawing with Maui.Graphics September 10, 2021 csharp maui graphics
Draw with Maui.Graphics and Skia in a C# Console Application August 1, 2021 csharp maui
C# Microphone Level Monitor July 3, 2021 csharp
Working with 16-bit Images in CSharp June 8, 2021 csharp
Representing Images in Memory June 3, 2021 csharp
Reflection and XML Documentation in C# January 31, 2021 csharp
Google Charts in Blazor January 12, 2021 blazor csharp
Mystify your Browser with Blazor January 9, 2021 blazor csharp
Boids in your Browser with Blazor January 8, 2021 blazor csharp
Draw Animated Graphics in the Browser with Blazor WebAssembly January 7, 2021 blazor csharp
Create a new .NET 5 Blazor Project January 6, 2021 blazor csharp
Display Build Details in Client-Size Blazor Apps December 29, 2020 csharp blazor
Sound Card ECG with AD8232 March 15, 2019 diyECG csharp
Bit-Bang FTDI USB-to-Serial Converters to Drive SPI Devices June 3, 2018 csharp microcontroller

graphics

Treemapping with C# March 28, 2023 csharp graphics
Creating Bitmaps from Scratch in C# November 7, 2022 csharp graphics
Resample Time Series Data using Cubic Spline Interpolation June 23, 2022 csharp graphics
Use Maui.Graphics to Draw 2D Graphics in Any .NET Application May 25, 2022 csharp graphics maui
Mystify your Mind with SkiaSharp April 4, 2022 csharp graphics
Point Inside Rectangle February 1, 2022 csharp graphics
Status Badges with Maui.Graphics October 16, 2021 csharp maui graphics
MeasureString() with Maui.Graphics October 16, 2021 csharp maui graphics
Drawing with Maui.Graphics September 10, 2021 csharp maui graphics

circuit

Divide 10 MHz to 1PPS with a Microcontroller December 17, 2022 circuit microcontroller
Programming Modern AVR Microcontrollers December 9, 2022 circuit microcontroller
Interfacing HX710 Differential ADC with Arduino November 15, 2022 circuit microcontroller
Exploring the Voltage-Clamp Membrane Test October 11, 2020 science circuit
ECG Simulator Circuit September 27, 2020 circuit diyECG
Using MOD Files in LTSpice September 27, 2020 circuit
USB Frequency Counter August 3, 2019 circuit
Upgraded Amplifier July 31, 2019 qrss circuit
SMT QRSS Design July 26, 2019 qrss circuit
New QRSS Keyer July 21, 2019 qrss circuit
IoT Festivus Pole December 19, 2017 circuit microcontroller
Hurricane Hack - DIY LED Candle September 9, 2017 circuit
PS4 Controller Hack - Adding Auto-Run September 2, 2017 circuit
Microcontroller Action Potential Generator August 20, 2017 science circuit microcontroller python
Action Potential Generator Circuit August 12, 2017 science circuit microcontroller python
TTL Triggered Stimulus Generator August 2, 2017 circuit microcontroller
Controlling Speakers with RADAR June 28, 2017 circuit
Precision Pressure Meter Project April 29, 2017 microcontroller circuit
Logging I2C Data with Bus Pirate and Python February 4, 2017 microcontroller circuit
1 Rotary Encoder, 3 Pins, 6 Inputs February 2, 2017 microcontroller circuit
Hacking a Cheap Ammeter / Voltmeter to Provide a Bluetooth PC Interface September 19, 2016 circuit
Adding ADC to Microcontrollers without ADC September 9, 2016 circuit obsolete
VHF Frequency Counter with PC Interface September 5, 2016 amateur radio circuit python obsolete
ICS501 Simple Frequency Multiplier August 31, 2016 circuit obsolete
Breadboard Line Driver Module August 20, 2016 circuit obsolete
DIY ECG with 1 op-amp August 8, 2016 diyECG python circuit
Opto-Isolated Laser Controller Build July 28, 2016 microcontroller circuit obsolete
Controlling Bus Pirate with Python July 14, 2016 microcontroller circuit obsolete
Directly Driving 7-Segment Display with AVR IO Pins February 27, 2014 circuit obsolete
Adding USB to a Cheap Frequency Counter (Again) June 22, 2013 circuit
Crystal Oven Testing June 22, 2013 circuit obsolete
My DIY Bench Power Supply December 18, 2012 circuit
Single Wavelength Pulse Oximeter December 6, 2012 circuit diyECG obsolete
Multichannel USB Analog Sensor with ATMega48 June 14, 2012 microcontroller circuit obsolete
High Altitude Balloon Transmitter Prototype August 14, 2011 amateur radio circuit obsolete
Ridiculously Simple AVR AM Radio Transmitter August 6, 2011 amateur radio circuit obsolete
I before E except after Hellschreiber August 5, 2011 microcontroller circuit obsolete amateur radio
PC/microcontroller “wireless” data transfer (part 2) July 31, 2011 circuit microcontroller obsolete
PC/microcontroller "wireless" data transfer (part 1) July 26, 2011 circuit microcontroller obsolete
Frequency Counter Gen2 July 24, 2011 microcontroller circuit obsolete
DIY State Machine July 16, 2011 microcontroller circuit obsolete
Frequency Counter Hacked to add USB Functionality July 11, 2011 amateur radio qrss circuit microcontroller obsolete
Sound Card Microcontroller/PC Communication July 9, 2011 microcontroller circuit obsolete
Using Timers and Counters to Clock Seconds June 19, 2011 circuit microcontroller obsolete
Permeability Tuned Oscillator (PTO) Working Nicely June 5, 2011 circuit amateur radio obsolete
Screwy Oscillator Idea June 2, 2011 circuit amateur radio obsolete
$10 Frequency Counter Finished! March 14, 2011 amateur radio circuit microcontroller obsolete
RF Workshop Launched February 20, 2011 circuit amateur radio obsolete
Wideband Receiver Works! February 12, 2011 amateur radio circuit microcontroller obsolete
Minimal Radio Project Continues... February 9, 2011 circuit amateur radio obsolete
Frequency Counter Working! February 4, 2011 microcontroller circuit obsolete
Home-Brew Transceiver Taking Shape! January 28, 2011 circuit microcontroller obsolete amateur radio
First Homebrew QSO Ever! January 16, 2011 amateur radio circuit obsolete
40m Junkbox QRP Transmitter January 10, 2011 qrss amateur radio circuit obsolete
Full-Auto Rapidfire Mouse Modification December 28, 2010 circuit microcontroller obsolete
Crystal Oven Experiments November 28, 2010 circuit microcontroller obsolete
Serial Port Multi-Channel Temperature Measurement November 24, 2010 circuit microcontroller python obsolete
Improved MEPT Enclosure November 14, 2010 qrss amateur radio circuit
Hacking Together a Crystal Oven Part 2 August 27, 2010 circuit qrss obsolete microcontroller
Minimalist Crystal Oven August 26, 2010 circuit qrss obsolete microcontroller
Lost Project Revisited on HackADay August 24, 2010 circuit obsolete
QRSS DNA June 6, 2010 microcontroller circuit qrss obsolete
Soup Can MEPT June 3, 2010 qrss amateur radio circuit obsolete
Measuring QRP Radio Output Power with an Oscilloscope May 28, 2010 amateur radio circuit obsolete
Pushing and Pulling May 26, 2010 circuit amateur radio obsolete
Minimal QRSS Transmitter May 17, 2010 circuit qrss obsolete
Microcontroller Clocking a Transmitter? April 3, 2010 qrss circuit
HF CW on the Cheap December 10, 2009 amateur radio circuit obsolete
Prime Prototype Construction June 4, 2009 circuit microcontroller
A Prime Idea May 27, 2009 obsolete circuit
Simple Case AVR/PC Serial Communication via MAX232 May 14, 2009 microcontroller circuit obsolete
Puxing 777 Radio Headset Schematic April 22, 2009 amateur radio circuit obsolete
RF Circuitry Links January 9, 2009 circuit amateur radio

microcontroller

Divide 10 MHz to 1PPS with a Microcontroller December 17, 2022 circuit microcontroller
Programming Modern AVR Microcontrollers December 9, 2022 circuit microcontroller
Interfacing HX710 Differential ADC with Arduino November 15, 2022 circuit microcontroller
Bit-Bang FTDI USB-to-Serial Converters to Drive SPI Devices June 3, 2018 csharp microcontroller
IoT Festivus Pole December 19, 2017 circuit microcontroller
Microcontroller Action Potential Generator August 20, 2017 science circuit microcontroller python
Action Potential Generator Circuit August 12, 2017 science circuit microcontroller python
TTL Triggered Stimulus Generator August 2, 2017 circuit microcontroller
Precision Pressure Meter Project April 29, 2017 microcontroller circuit
Logging I2C Data with Bus Pirate and Python February 4, 2017 microcontroller circuit
1 Rotary Encoder, 3 Pins, 6 Inputs February 2, 2017 microcontroller circuit
Opto-Isolated Laser Controller Build July 28, 2016 microcontroller circuit obsolete
Controlling Bus Pirate with Python July 14, 2016 microcontroller circuit obsolete
Precision Temperature Measurement June 10, 2013 microcontroller obsolete
Wireless Microcontroller / PC Interface for $3.21 May 19, 2013 microcontroller obsolete python
AVR Programming in 64-bit Windows 7 May 7, 2013 microcontroller obsolete
Simple DIY ECG + Pulse Oximeter (version 2) April 14, 2013 diyECG microcontroller obsolete
AVR Programming in Linux January 6, 2013 microcontroller obsolete
Geek Spin - ATTiny44 Project Prototype August 18, 2012 microcontroller obsolete
Introduction to PIC Programming for AVR users June 24, 2012 microcontroller obsolete
Multichannel USB Analog Sensor with ATMega48 June 14, 2012 microcontroller circuit obsolete
I before E except after Hellschreiber August 5, 2011 microcontroller circuit obsolete amateur radio
PC/microcontroller “wireless” data transfer (part 2) July 31, 2011 circuit microcontroller obsolete
PC/microcontroller "wireless" data transfer (part 1) July 26, 2011 circuit microcontroller obsolete
Frequency Counter Gen2 July 24, 2011 microcontroller circuit obsolete
DIY State Machine July 16, 2011 microcontroller circuit obsolete
Frequency Counter Hacked to add USB Functionality July 11, 2011 amateur radio qrss circuit microcontroller obsolete
Sound Card Microcontroller/PC Communication July 9, 2011 microcontroller circuit obsolete
Using Timers and Counters to Clock Seconds June 19, 2011 circuit microcontroller obsolete
$10 Frequency Counter Finished! March 14, 2011 amateur radio circuit microcontroller obsolete
Wideband Receiver Works! February 12, 2011 amateur radio circuit microcontroller obsolete
Frequency Counter Working! February 4, 2011 microcontroller circuit obsolete
Home-Brew Transceiver Taking Shape! January 28, 2011 circuit microcontroller obsolete amateur radio
Full-Auto Rapidfire Mouse Modification December 28, 2010 circuit microcontroller obsolete
Crystal Oven Experiments November 28, 2010 circuit microcontroller obsolete
Serial Port Multi-Channel Temperature Measurement November 24, 2010 circuit microcontroller python obsolete
Simple method to send data from ANY microcontroller to a serial port September 7, 2010 microcontroller obsolete
Hacking Together a Crystal Oven Part 2 August 27, 2010 circuit qrss obsolete microcontroller
Minimalist Crystal Oven August 26, 2010 circuit qrss obsolete microcontroller
QRSS DNA June 6, 2010 microcontroller circuit qrss obsolete
Microcontroller-Powered Prime Number Generator July 6, 2009 microcontroller
Summer's End is Nearing July 1, 2009 microcontroller
Prime Prototype Construction June 4, 2009 circuit microcontroller
Prime Number Generator Prototype May 30, 2009 microcontroller obsolete
Audio and Video on an ATMega88 Microcontroller May 19, 2009 microcontroller
Simple Case AVR/PC Serial Communication via MAX232 May 14, 2009 microcontroller circuit obsolete
A Foot in the QRSS Door April 30, 2009 qrss microcontroller amateur radio obsolete
Post-Defense Day 1 April 1, 2009 obsolete microcontroller amateur radio

amateur radio

Experiments in PSK-31 Synthesis October 16, 2022 amateur radio csharp
WSPR Code Generator March 27, 2021 blazor amateur radio qrss
Seven Years of QRSS Plus December 14, 2020 qrss amateur radio
The New Age of QRSS October 3, 2020 qrss amateur radio
VHF Frequency Counter with PC Interface September 5, 2016 amateur radio circuit python obsolete
High Altitude Balloon Transmitter Prototype August 14, 2011 amateur radio circuit obsolete
High School Students' High Altitude Balloon August 14, 2011 amateur radio
Ridiculously Simple AVR AM Radio Transmitter August 6, 2011 amateur radio circuit obsolete
I before E except after Hellschreiber August 5, 2011 microcontroller circuit obsolete amateur radio
Frequency Counter Hacked to add USB Functionality July 11, 2011 amateur radio qrss circuit microcontroller obsolete
Permeability Tuned Oscillator (PTO) Working Nicely June 5, 2011 circuit amateur radio obsolete
Screwy Oscillator Idea June 2, 2011 circuit amateur radio obsolete
QRSS and WSPR Presentation for GARS March 17, 2011 amateur radio qrss
$10 Frequency Counter Finished! March 14, 2011 amateur radio circuit microcontroller obsolete
AJ4VD Portable - Spring Break QTH March 5, 2011 amateur radio
RF Workshop Launched February 20, 2011 circuit amateur radio obsolete
Wideband Receiver Works! February 12, 2011 amateur radio circuit microcontroller obsolete
Minimal Radio Project Continues... February 9, 2011 circuit amateur radio obsolete
Prototype Radio Receiver Improving Daily February 3, 2011 amateur radio obsolete
Home-Brew Transceiver Taking Shape! January 28, 2011 circuit microcontroller obsolete amateur radio
First Homebrew QSO Ever! January 16, 2011 amateur radio circuit obsolete
40m Junkbox QRP Transmitter January 10, 2011 qrss amateur radio circuit obsolete
My Simple Balcony Antenna November 29, 2010 amateur radio
Improved MEPT Enclosure November 14, 2010 qrss amateur radio circuit
Deciphering QR Code from Radio Spectrogram November 11, 2010 qrss amateur radio
High Altitude Balloon Transmitter July 14, 2010 qrss amateur radio obsolete
QRSS Receiver Works... Barely June 10, 2010 amateur radio qrss
Minimalist Radio Receiver June 9, 2010 qrss amateur radio obsolete
New Transmitter, New Spots! June 7, 2010 qrss amateur radio
Soup Can MEPT June 3, 2010 qrss amateur radio circuit obsolete
Measuring QRP Radio Output Power with an Oscilloscope May 28, 2010 amateur radio circuit obsolete
Pushing and Pulling May 26, 2010 circuit amateur radio obsolete
How to Destroy a Radio Operator March 10, 2010 amateur radio
Simple DIY Stealth Apartment Antenna for HF February 7, 2010 amateur radio obsolete
Convert Text to CW Morse Code with Linux February 2, 2010 amateur radio python obsolete
More Antenna Tinkering January 30, 2010 amateur radio
QRSS and Life in Dental School January 1, 2010 qrss amateur radio
HF CW on the Cheap December 10, 2009 amateur radio circuit obsolete
Field Day 2009 June 29, 2009 amateur radio
pySquelch - Frequency Activity Reports via Python June 18, 2009 amateur radio python obsolete
A Foot in the QRSS Door April 30, 2009 qrss microcontroller amateur radio obsolete
Puxing 777 Radio Headset Schematic April 22, 2009 amateur radio circuit obsolete
Scott is now Licensed! (KJ4LDF) April 15, 2009 amateur radio qrss
Post-Defense Day 1 April 1, 2009 obsolete microcontroller amateur radio
Cheaply Create Double-Sided QSL Cards in 1 Day February 7, 2009 amateur radio
RF Circuitry Links January 9, 2009 circuit amateur radio

blazor

Show A Progress Bar as your Blazor App Loads May 29, 2022 blazor csharp
WSPR Code Generator March 27, 2021 blazor amateur radio qrss
Google Charts in Blazor January 12, 2021 blazor csharp
Mystify your Browser with Blazor January 9, 2021 blazor csharp
Boids in your Browser with Blazor January 8, 2021 blazor csharp
Draw Animated Graphics in the Browser with Blazor WebAssembly January 7, 2021 blazor csharp
Create a new .NET 5 Blazor Project January 6, 2021 blazor csharp
Display Build Details in Client-Size Blazor Apps December 29, 2020 csharp blazor

maui

Use Maui.Graphics to Draw 2D Graphics in Any .NET Application May 25, 2022 csharp graphics maui
NDepend Status Badges October 17, 2021 csharp maui
Status Badges with Maui.Graphics October 16, 2021 csharp maui graphics
MeasureString() with Maui.Graphics October 16, 2021 csharp maui graphics
Drawing with Maui.Graphics September 10, 2021 csharp maui graphics
Draw with Maui.Graphics and Skia in a C# Console Application August 1, 2021 csharp maui

github

FTP Deploy with GitHub Actions April 24, 2022 GitHub
GitHub Repository Badge April 12, 2022 JavaScript GitHub
Build and Deploy a Hugo Site with GitHub Actions March 20, 2022 github hugo
Determine GitHub Action Runner IP March 12, 2022 github

JavaScript

GitHub Repository Badge April 12, 2022 JavaScript GitHub

qrss

WSPR Code Generator March 27, 2021 blazor amateur radio qrss
Seven Years of QRSS Plus December 14, 2020 qrss amateur radio
The New Age of QRSS October 3, 2020 qrss amateur radio
Upgraded Amplifier July 31, 2019 qrss circuit
SMT QRSS Spots July 29, 2019 qrss
SMT QRSS Design July 26, 2019 qrss circuit
New QRSS Keyer July 21, 2019 qrss circuit
QRSS Stitch and Stack July 20, 2019 qrss
Started Transmitting Letters July 20, 2019 qrss
OOK and FSK July 18, 2019 qrss
Amplifier Improvements July 14, 2019 qrss
QRSS Spots July 13, 2019 qrss
Calculate QRSS Transmission Time with Python June 23, 2013 qrss python obsolete
Frequency Counter Hacked to add USB Functionality July 11, 2011 amateur radio qrss circuit microcontroller obsolete
QRSS and WSPR Presentation for GARS March 17, 2011 amateur radio qrss
6 Day QRSS Stitch March 14, 2011 qrss
40m Junkbox QRP Transmitter January 10, 2011 qrss amateur radio circuit obsolete
Improved MEPT Enclosure November 14, 2010 qrss amateur radio circuit
Deciphering QR Code from Radio Spectrogram November 11, 2010 qrss amateur radio
VD Labs September 4, 2010 qrss obsolete
Hacking Together a Crystal Oven Part 2 August 27, 2010 circuit qrss obsolete microcontroller
Minimalist Crystal Oven August 26, 2010 circuit qrss obsolete microcontroller
Converting Numbers to Morse Code with GCC August 9, 2010 python qrss obsolete
vdFSK Modulation July 22, 2010 python qrss obsolete
High Altitude Balloon Transmitter July 14, 2010 qrss amateur radio obsolete
Coder's Block July 12, 2010 qrss
Insights Into FFTs, Imaginary Numbers, and Accurate Spectrographs June 23, 2010 qrss python obsolete
MEPT Insulation Improves Stability June 12, 2010 qrss
QRSS Receiver Works... Barely June 10, 2010 amateur radio qrss
Minimalist Radio Receiver June 9, 2010 qrss amateur radio obsolete
QRSS VD Image Assembler June 7, 2010 qrss obsolete python
New Transmitter, New Spots! June 7, 2010 qrss amateur radio
QRSS DNA June 6, 2010 microcontroller circuit qrss obsolete
Soup Can MEPT June 3, 2010 qrss amateur radio circuit obsolete
AJ4VD Gator Spotted in Essex, England May 28, 2010 qrss
AJ4VD Gator Chomps its way into Belgium! May 27, 2010 qrss
AJ4VD Gator Spotted in MA May 27, 2010 qrss obsolete
Solar Powered QRSS Transmitter May 24, 2010 qrss
First QRSS Spot! May 22, 2010 qrss
Debut of the AJ4VD QRSS Gator May 22, 2010 qrss obsolete
Debut of the AJ4VD QRSS Fish May 19, 2010 python qrss obsolete
Minimal QRSS Transmitter May 17, 2010 circuit qrss obsolete
Microcontroller Clocking a Transmitter? April 3, 2010 qrss circuit
W4DFU Gator Seen in Canada March 16, 2010 qrss
QRSS VD version 1.04 Released March 12, 2010 qrss
Overseas QRP Transmission March 9, 2010 qrss python obsolete
Spring Break Software Project March 6, 2010 qrss
QRSS and Life in Dental School January 1, 2010 qrss amateur radio
A Foot in the QRSS Door April 30, 2009 qrss microcontroller amateur radio obsolete
Scott is now Licensed! (KJ4LDF) April 15, 2009 amateur radio qrss

php

Get URL of a Directory with PHP January 28, 2021 php
Leaving WordPress September 13, 2020 php

science

LJP Theory and Correction January 13, 2021 science
Exploring the Voltage-Clamp Membrane Test October 11, 2020 science circuit
Microcontroller Action Potential Generator August 20, 2017 science circuit microcontroller python
Action Potential Generator Circuit August 12, 2017 science circuit microcontroller python

diyECG

ECG Simulator Circuit September 27, 2020 circuit diyECG
Sound Card ECG with AD8232 March 15, 2019 diyECG csharp
DIY ECG with 1 op-amp August 8, 2016 diyECG python circuit
Simple DIY ECG + Pulse Oximeter (version 2) April 14, 2013 diyECG microcontroller obsolete
Single Wavelength Pulse Oximeter December 6, 2012 circuit diyECG obsolete
DIY ECG Machine On The Cheap August 14, 2009 diyECG obsolete
Improving ECG Reliability August 9, 2009 diyECG
Homemade ECG Machine: Improving Daily February 2, 2009 diyECG
Signal Filtering with Python January 21, 2009 diyECG python obsolete
DIY ECG Detected an Irregular Heartbeat January 20, 2009 diyECG obsolete
DIY ECG Improvements January 20, 2009 diyECG
DIY ECG Progress January 16, 2009 diyECG
Circuits vs. Software January 15, 2009 diyECG obsolete python
DIY ECG Trial 1 January 15, 2009 diyECG python obsolete
ECG Success! January 14, 2009 diyECG
DIY ECG Attempt 1: Failure January 14, 2009 diyECG
DIY ECG? January 13, 2009 diyECG

med

Bone Marrow Transplant Complete! April 13, 2019 med
Transplant Day March 27, 2019 med
Last Day of Chemotherapy March 26, 2019 med
Proceeding with a Bone Marrow Transplant March 15, 2019 med
Stem Cell Collection Day January 2, 2019 med
Scott Has a New Look September 13, 2018 med
First Round of Chemotherapy August 29, 2018 med
Port Placed Today August 24, 2018 med
PET CT Reveals Progression August 16, 2018 med
A Change in Symptoms June 6, 2018 med
First Diagnosis April 16, 2012 med

obsolete

Adding ADC to Microcontrollers without ADC September 9, 2016 circuit obsolete
VHF Frequency Counter with PC Interface September 5, 2016 amateur radio circuit python obsolete
ICS501 Simple Frequency Multiplier August 31, 2016 circuit obsolete
TENMA Multimeter Serial Hack August 24, 2016 python obsolete
Breadboard Line Driver Module August 20, 2016 circuit obsolete
Python Real-time Audio Frequency Monitor July 31, 2016 python obsolete
Live Data in PyQt4 with PlotWidget July 31, 2016 python obsolete
Live Data in PyQt4 with MatplotlibWidget July 30, 2016 python obsolete
Opto-Isolated Laser Controller Build July 28, 2016 microcontroller circuit obsolete
Realtime Audio Visualization in Python July 19, 2016 python obsolete
Controlling Bus Pirate with Python July 14, 2016 microcontroller circuit obsolete
Festivus Pole Video Game December 23, 2015 obsolete
Epoch Timestamp Hashing April 19, 2014 python obsolete
Directly Driving 7-Segment Display with AVR IO Pins February 27, 2014 circuit obsolete
Calculate QRSS Transmission Time with Python June 23, 2013 qrss python obsolete
Crystal Oven Testing June 22, 2013 circuit obsolete
Precision Temperature Measurement June 10, 2013 microcontroller obsolete
Realtime image pixelmap from Numpy array data in Qt June 3, 2013 python obsolete
Wireless Microcontroller / PC Interface for $3.21 May 19, 2013 microcontroller obsolete python
Realtime FFT Audio Visualization with Python May 9, 2013 python obsolete
Realtime Data Plotting in Python May 8, 2013 python obsolete
AVR Programming in 64-bit Windows 7 May 7, 2013 microcontroller obsolete
Tenma 72-7750 Multimeter for RF Engineering April 17, 2013 obsolete
Fixing Slow Matplotlib in Python(x,y) April 15, 2013 python obsolete
Simple DIY ECG + Pulse Oximeter (version 2) April 14, 2013 diyECG microcontroller obsolete
AVR Programming in Linux January 6, 2013 microcontroller obsolete
Single Wavelength Pulse Oximeter December 6, 2012 circuit diyECG obsolete
Geek Spin - ATTiny44 Project Prototype August 18, 2012 microcontroller obsolete
Introduction to PIC Programming for AVR users June 24, 2012 microcontroller obsolete
Multichannel USB Analog Sensor with ATMega48 June 14, 2012 microcontroller circuit obsolete
High Altitude Balloon Transmitter Prototype August 14, 2011 amateur radio circuit obsolete
Ridiculously Simple AVR AM Radio Transmitter August 6, 2011 amateur radio circuit obsolete
I before E except after Hellschreiber August 5, 2011 microcontroller circuit obsolete amateur radio
PC/microcontroller “wireless” data transfer (part 2) July 31, 2011 circuit microcontroller obsolete
PC/microcontroller "wireless" data transfer (part 1) July 26, 2011 circuit microcontroller obsolete
Frequency Counter Gen2 July 24, 2011 microcontroller circuit obsolete
DIY State Machine July 16, 2011 microcontroller circuit obsolete
Frequency Counter Hacked to add USB Functionality July 11, 2011 amateur radio qrss circuit microcontroller obsolete
Sound Card Microcontroller/PC Communication July 9, 2011 microcontroller circuit obsolete
Create Mono and Stereo Wave Files with Python July 8, 2011 python obsolete
Using Timers and Counters to Clock Seconds June 19, 2011 circuit microcontroller obsolete
Permeability Tuned Oscillator (PTO) Working Nicely June 5, 2011 circuit amateur radio obsolete
Screwy Oscillator Idea June 2, 2011 circuit amateur radio obsolete
$10 Frequency Counter Finished! March 14, 2011 amateur radio circuit microcontroller obsolete
RF Workshop Launched February 20, 2011 circuit amateur radio obsolete
Wideband Receiver Works! February 12, 2011 amateur radio circuit microcontroller obsolete
Minimal Radio Project Continues... February 9, 2011 circuit amateur radio obsolete
Frequency Counter Working! February 4, 2011 microcontroller circuit obsolete
Prototype Radio Receiver Improving Daily February 3, 2011 amateur radio obsolete
Home-Brew Transceiver Taking Shape! January 28, 2011 circuit microcontroller obsolete amateur radio
First Homebrew QSO Ever! January 16, 2011 amateur radio circuit obsolete
40m Junkbox QRP Transmitter January 10, 2011 qrss amateur radio circuit obsolete
Full-Auto Rapidfire Mouse Modification December 28, 2010 circuit microcontroller obsolete
Crystal Oven Experiments November 28, 2010 circuit microcontroller obsolete
Serial Port Multi-Channel Temperature Measurement November 24, 2010 circuit microcontroller python obsolete
Quantifying University Network Frustrations September 9, 2010 python obsolete
Simple method to send data from ANY microcontroller to a serial port September 7, 2010 microcontroller obsolete
VD Labs September 4, 2010 qrss obsolete
Hacking Together a Crystal Oven Part 2 August 27, 2010 circuit qrss obsolete microcontroller
Minimalist Crystal Oven August 26, 2010 circuit qrss obsolete microcontroller
Lost Project Revisited on HackADay August 24, 2010 circuit obsolete
Tooth as a Radio Receiver? August 15, 2010 obsolete
Prime Failure 1 Year in the Making August 11, 2010 python obsolete
Converting Numbers to Morse Code with GCC August 9, 2010 python qrss obsolete
vdFSK Modulation July 22, 2010 python qrss obsolete
High Altitude Balloon Transmitter July 14, 2010 qrss amateur radio obsolete
Getting GTK, Glade, and Python to Work in Windows June 28, 2010 python obsolete
Fast TK Pixelmap generation from 2D Numpy Arrays in Python June 24, 2010 python obsolete
Detrending Data in Python with Numpy June 24, 2010 python obsolete
Insights Into FFTs, Imaginary Numbers, and Accurate Spectrographs June 23, 2010 qrss python obsolete
Smoothing Window Data Averaging in Python - Moving Triangle Tecnique June 20, 2010 python obsolete
Simple Python Spectrograph with PyGame June 19, 2010 python obsolete
Simple-Case PyGame Example June 15, 2010 python obsolete
Minimalist Radio Receiver June 9, 2010 qrss amateur radio obsolete
QRSS VD Image Assembler June 7, 2010 qrss obsolete python
QRSS DNA June 6, 2010 microcontroller circuit qrss obsolete
Soup Can MEPT June 3, 2010 qrss amateur radio circuit obsolete
Measuring QRP Radio Output Power with an Oscilloscope May 28, 2010 amateur radio circuit obsolete
AJ4VD Gator Spotted in MA May 27, 2010 qrss obsolete
Pushing and Pulling May 26, 2010 circuit amateur radio obsolete
Debut of the AJ4VD QRSS Gator May 22, 2010 qrss obsolete
Debut of the AJ4VD QRSS Fish May 19, 2010 python qrss obsolete
Minimal QRSS Transmitter May 17, 2010 circuit qrss obsolete
Generate LUTs with Python May 10, 2010 python obsolete
Overseas QRP Transmission March 9, 2010 qrss python obsolete
Dynamic Logo Generation with Python March 7, 2010 python obsolete
Animated Realtime Spectrograph with Scrolling Waterfall Display in Python March 5, 2010 python obsolete
Realtime FFT Graph of Audio WAV File or Microphone Input with Python, Scipy, and WCKgraph March 5, 2010 python obsolete
Smoothly Scroll an Image Across a Window with Tkinter vs. PyGame March 5, 2010 python obsolete
Display large Images with Scrollbars with Python, Tk, and PIL March 3, 2010 python obsolete
Simple DIY Stealth Apartment Antenna for HF February 7, 2010 amateur radio obsolete
Convert Text to CW Morse Code with Linux February 2, 2010 amateur radio python obsolete
HF CW on the Cheap December 10, 2009 amateur radio circuit obsolete
DIY ECG Machine On The Cheap August 14, 2009 diyECG obsolete
Generate Apache-Style HTTP Access Logs via SQL and PHP August 4, 2009 obsolete
PySquelch: A Python-Based Frequency Audio Activity Monitor July 26, 2009 python obsolete
Reading PCM Audio with Python June 19, 2009 python obsolete
pySquelch - Frequency Activity Reports via Python June 18, 2009 amateur radio python obsolete
Prime Number Generator Prototype May 30, 2009 microcontroller obsolete
A Prime Idea May 27, 2009 obsolete circuit
Graphing Computer Usage May 20, 2009 python obsolete
Removing Textile Markup From Wordpress Entries May 15, 2009 obsolete
Simple Case AVR/PC Serial Communication via MAX232 May 14, 2009 microcontroller circuit obsolete
A Foot in the QRSS Door April 30, 2009 qrss microcontroller amateur radio obsolete
Puxing 777 Radio Headset Schematic April 22, 2009 amateur radio circuit obsolete
Custom HDD LEDs April 9, 2009 obsolete
Post-Defense Day 1 April 1, 2009 obsolete microcontroller amateur radio
Analyzing my Writings with Python January 29, 2009 python obsolete
Signal Filtering with Python January 21, 2009 diyECG python obsolete
DIY ECG Detected an Irregular Heartbeat January 20, 2009 diyECG obsolete
Circuits vs. Software January 15, 2009 diyECG obsolete python
DIY ECG Trial 1 January 15, 2009 diyECG python obsolete
Compress and Store Files in Python November 24, 2008 python obsolete
Linear Data Smoothing in Python November 17, 2008 obsolete python
Custom MiniDisc Labels with Photoshop August 12, 2005 obsolete