Adding Off-Screen Buffer to Serial LCD Display
Since the current Arduino tools do not support in-circuit debugging, you will have to rely heavily on the serial print […]
Using FRAM as Nonvolatile Memory With Arduino
One of the biggest advantages of FRAM (or FeRAM, Ferroelectric RAM) over EEPROM is that FRAM has a much higher […]
Interfacing MMA8453Q With Arduino
MMA8453Q is a rather inexpensive accelerometer. It is significantly cheaper than many other 3-axis accelerometers (such as the popular LIS3LV02DL) […]
Makefile for Arduino 1.0
A while back, I created an Arduino plugin for NetBeans so that I could use the full-fledged NetBeans IDE for […]
Building a Wireless Temperature Sensor
I have built quite a few (1,2,3) temperature measurement circuits in the past, but none of those has remote sensing […]
Thermistor Parameter Measurement — II
Last time I showed a simple circuit that can be used to measure unknown thermistor parameters. The circuit is basically […]
Thermistor Parameter Measurement — I
Over the years, I have gathered quite a few NTC and PTC thermistors. But most of them are unmarked so […]
A Unipolar Stepper Motor Driver
The drive circuits for Unipolar stepper motors are usually very simple. In its simplest form, a transistor or MOSFET is […]
Interfacing DS28EC20 with Arduino
DS28EC20 is a 20Kb 1-Wire EEPROM chip from Maxim. Like all other 1-wire devices, only a single pin is needed […]
Arduino Robotics – A Short Review
Apress was kind enough to send me a copy of their recently released book “Arduino Robotics” a few weeks ago […]
RF Link 2400bps Receiver Output Buffer
I recently dug up two sets of RF link transmitter/receiver modules from Sparkfun. I got these RF transmitters and receivers […]
Building an Auxiliary Display
I wanted to be able to check my web server’s statistics periodically but did not want having to log on […]
Arduino Serial Using LT1780
Most of the recent Arduino and compatible boards use some kind of USB to UART hardware (e.g. FT232RL in Arduino […]
A Dual Temperature Display With Humidity Measurement
I built a digital thermometer a couple of weeks ago. This thermometer uses an LM19 sensor calibrated for measuring a […]
Wake On … IR
One of my old computers is used as a file backup server in my basement office. It is kept off […]