The ElecFreaks 3V 1 Channel Relay Module for micro:bit is fundamentally designed according to OCTOPUS electric brick series with same shape, PCB positioning holes and electric brick connectors.
The OCTOPUS 1 Channel Relay has adopted a mini and high-quality HUIKE relay, which is available to control all kinds of home appliances and high current load devices. This is a common accessory module for electronic DIY fans.
1 x ElecFreaks 3V 1 Channel Relay Module for micro:bit