Interfacing a Noritake VFD Module with Arduino
I recently bought a Noritake-itron VFD module off eBay. Noritake-itron specializes in making vacuum fluorescent displays for many OEMs. As […]
Building a Single Pixel Scanner
A flat bed scanner typically uses three rows of CCD sensors (RGB) to capture images placed directly on top of […]
HP 7044A X-Y Recorder Teardown, Lorenz Attractor
I picked up an HP 7044A X-Y recorder on eBay recently. This one was made in the early 1980’s and […]
Interfacing HDC1050 with Arduino
Recently, I got my hands on TI‘s HDC1050 low power, high accuracy digital humidity/temperature sensor chip. The supply voltage of […]
Turn Your Android Phone into a Wireless Touchpad
In this blog post, I will show you a simple way of turning your Android phone into a wireless touchpad. […]
Using Arduino Due’s True Random Number Generator
Arduino Due uses an Atmel SAM3X8E ARM Cortex-M3 CPU, which has a native hardware based True Random Number Generator (TRNG). […]
On Arduino Due PWM Frequency
I just got myself a couple of Arduino Due boards. While they were released almost two years ago, I have […]
DS3232 Clock Frequency Calibration
DS3232 is an extremely accurate RTC with a guaranteed accuracy of 2.5 ppm (0 °C to 40 °C), which translates […]
Backup and Flash Firmware using Arduino
A while ago, I did a tear-down of a Keithley 196 bench multimeter. Towards the end of that post I […]
MCP3903 Library
MCP3903 is a six channel Delta-Sigma A/D converter. It features six synchronous sampling differential channels which can be programmed to […]
Modify An Off-the-Shelf CP2102 Module As An Arduino Programmer
A while back, I wrote an article on how to use a CP2102 USB/UART converter chip in place of an […]
Arduino Library For LTC4151
LTC4151 is a high voltage I2C current and voltage monitor. It is capable of monitoring input voltage ranging from 7V […]
A Digital Thermometer Hygrometer With Analog Displays
It seems that you can’t visit to a microcontroller website without seeing a digital thermometer/hygrometer build of some kind. After […]
Extending DAC Resolution Using Digital Potentiometer
One way to extend the resolution of a digital-to-analog converter (DAC) is by employing a sigma-delta converter in software. The […]
Arduino Libraries Uploaded to GitHub
Over the years I have created quite a few libraries for Arduino. I finally uploaded them to GitHub a couple […]