Circuit Lake

If you want to build a contactless temperature measurement and looking for an idea, then this project is for you. Martin Nawrath has built non-contact infrared thermometer using MLX90614 and Arduino. This device can be used to measure temperature with range from -70 to +380 degree Celsius. Just connect the four leads to your Arduino [...]

The aim of this project is to build a wireless 2×16 character display that fit to Altoids tin. It can be used to display data which is sent from the PC using a terminal program such as the Arduino ‘Serial Monitor’.
The project consists of two main parts, first, the ‘remote’ Altoids tin containing Arduino, LCD [...]

This project shows you how to build a simple Li-on Battery Capacity Tester. It consists of single resistor that discharges battery. Arduino measures the voltage drop across resistor. According to Ohm’s Law current = voltage/resistance. Every second value of current is divided by 3600 and summed up to get the capacity expressed in Ah (Amp [...]

This project utilizes the Renesas M16C SKP board to monitor a PC parallel port, set to ECP (Extended Capabilities Port) mode, and dumps acquired data to HyperTerminal via the Com port. The purpose is to allow the user to see the control codes and data that are used by a printer driver and reverse engineer [...]