Codec-Adaptive Wireless Relay

A wireless relay is a codec-adaptive RF receiver with single channel relay. It helps easily deployment of wireless AC control for electrical appliances.

Model: WLS120B5B

Application Ideas


Pin definition and Rating



Codec Adaption

  1. Power up, press red button until LED lit.
  2. Within 20 seconds, press any button on RF remote or activate transmitter, LED blink then off to notify adaption successful.

Code Clearance

Powerup, press red button for 6 seconds until LED off, codec cleared.

Hardware Installation


Includes important code snippet. Demo code like :

Demo code


How to buy

Click here to buy:

See Also

Other related products and resources.


This documentation is licensed under the Creative Commons Attribution-ShareAlike License 3.0 Source code and libraries are licensed under GPL/LGPL, see source code files for details.

External Links

Links to external webpages which provide more application ideas, documents/datasheet or software libraries

Copyright (c) 2008-2016 Seeed Development Limited ( /
This static html page was created from