OCTOPUS 1Channel Relay

In stock
Add to wish list

OCTOPUS 1Channel Relay

OCTOPUS 1Channel Relay is a single relay electronic brick,and its basic design is based on OCTOPUS series products, like shape, PCB positioning holes, interface setting. Adopting Ultra-small, high-quality HUIKE relay, OCTOPUS 1Channel Relay can control various appliances, load high-current, also with opto-isolation, secure and dependable, so Lovers of electronics DIY commonly used it as accessory module. The module is 5V high level trigger, and the trigger current is about 5mA, so almost all of MCU can directly drive it, pull-up not needed.

News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

  • Module 5V power supply:
  • Never use power supply more than 5V, which may cause damage to the module.


  • Relay Power Supply Voltage:<v< li=""></v<>
  • Relay drive level:
  • With opto-isolation circuit, can completely isolate the relay controlling signal and the controlled signal, secure and dependable
  • Contactor control:
  • Indicator:
  • Drive circuit: Transistor drive circuit, controlling pin high impedance, and requiring very small drive current, about 5mA
  • Pulldown relay controlling signal to prevent false triggering
  • Using high-current relay, DC 24V 2A, AC 120V 2A
  • PCB positioning holes: 3mm standard positioning holes, can install 3mm standard studs, screws


  • Smart home
  • Industrial control
  • Equipment remodel
  • Motor Control

Package List:

  • 1 x OCTOPUS 1Channel Relay
  • 1 x Analog Sensor Cable


Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials.

Notice for California Residents: Warning symbolWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov