Reverse Engineering a Uniden Cordlessphone LCD
I recently upgraded my home phone system and thus was left with a couple of old Uniden DCT648-2 handsets. Most […]
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 […]
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 […]
LM92 Library for Arduino
LM92 is a 12-bit + sign temperature sensor from Texas Instruments. This sensor operates on the I2C interface and can […]
A Simple Serial Protocol
We can send and receive commands wirelessly with Arduino by using these cheap RF data link transmitters/receivers. I like these […]
Building a Constant Current/Constant Power Electronic Load
A while back I built a simple constant current electronic load using an aluminum HDD cooler case as the heatsink. […]
Interfacing TLV5620 With Arduino
TI’s TLV5620 is a budget 4-channel 8-bit DAC. While it is designed primarily for running with a power supply between […]
An Isolated DAC Using PWM Output
Arduino‘s (ATmega328P) PWM outputs via analogWrite can be conveniently turned into analog voltage levels through the use of simple RC […]
VFD Clock – Putting Everything Together
After I completed the filament driver and the circuit to drive the multiplexed VFD segments, it is time to finish […]
Building a Sweep Generator for BK 4011
I did a teardown of a BK Precision 4011 5MHz function generator a few weeks ago. Like most of basic […]
Temperature and Humidity Logging Over Ethernet — II
Last week, I discussed the construction of a network-capable temperature and humidity sensor using SHT21 and ENC28J60 with an ATmega328P […]
Temperature and Humidity Logging Over Ethernet — I
I did a project on temperature/humidity logging a couple of years ago. In that project I logged the temperature and […]