Circuit Lake

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 [...]

If you want to make a handy humidity and temperature sensor then this project is for you. This mini Temperature / Humidity Monitor is built based on Arduino (Atmega 328P) and Sensiron SHT11 sensor. To display the result, it is equipped with Adafruit 128×32 OLED. The project uses LEGO shell for housing. The project powered [...]

The M16C/62P microcontroller-based RTMS is a low-cost device designed to measure liquid levels and monitor temperature in multiple containers simultaneously. The device is capable of monitoring about 50 overhead tanks simultaneously. Its small size makes it very handy and useful in the places where space is the big problem. Also RTMS use is not restricted [...]