KamodRPI Pico Quad SSR is a module in the form of a shield for Raspberry Pi Pico equipped with four solid-state relays. The board also includes four digital inputs with optoisolation, a set of LEDs signaling the states of inputs and outputs, a RESET button, and a supply voltage indicator. The module will find applications in building automation (including smart home applications), robotics, industrial automation, measurement systems, laboratory installations, as well as teaching