I’ve seen some Arduino users needing extra RAM, and looking at the SPI-connected 23K256 SRAM chip. The trouble is that the 23K256 has a maximum operating voltage of 3.6V, while the Arduino uses a 5V ...

Continuing his tradition of making bits of wire and scraps of wood work wonders, [HomoFaciens] is back with a unique and clever design for an electromechanical encoder. There are lots of ways to build ...

The latest offering in glove-based noisemakers forsakes commonly used flex sensors in favor or photoresistors. [Bruno Ratnieks] is responsible for this musical glove and his methods will be very easy ...

This project monitors voltage using a potentiometer connected to an Arduino. When the voltage reaches 4.8V or higher, the system automatically sends an SMS and makes a phone call using the SIM800L GSM ...

The presented solution for measuring voltage of Zener diodes using Arduino is completely new and original. The circuit uses LM317 as a constant current source and the whole measurement process is ...