1 Channel Relay 3V Relay Module is one of the OCTOPUS series of electric bricks. It is fundamentally designed according to OCTOPUS electric brick series with the same shape, PCB positioning holes, and electric brick connectors. 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.
DIMENSION

FEATURES
Equipped with a high current relay. Its max current can be up to 2A.
Adopt a 3V power supply, which is enough to support micro:bit.
Contact control, including a normally open contact and a normally closed contact.
Convenient wire connection.
RESULTS
The normally open contact is closed, while the normally closed contact is opened.