Mercury Medallion Module for Uno R3 This module consists of a mercury switch, a 680Ω resistor, and a LED that

CJMCU-219 INA219 I2C Bi-directional Current Power Monitor Sensor Module CJMCU-219 is a module with the I2C interface of zero drift

BREAD POWER This module is a simple way of supplying power for your own experiments or experimental set-ups on breadboards.

ISD1820 MODULE With the help of this sound module, a developer board can be transformed into a recording and playback