- more info please find at legacy wiki page - https://w.electrodragon.com/w/Category:RF-Link
products
https://www.electrodragon.com/product/433m-rf-wireless-module-a-pair-of-receiver-and-transmitter/
snap button
https://www.electrodragon.com/product/press-button-round-rf-ask-transmitter-433mhz-w-adhesive/
RF-LINK relay
https://www.electrodragon.com/product/wireless-relay-kit-learning-code/
Decode
Note
Note about distance:
If the distance required for far, can be connected to the 1/4 wavelength of the antenna, generally use 50 ohm single conductor, the length of the antenna 315M of about 23cm, 433M of about 17cm;
The position of the antenna has also affected the reception of the module, install the antenna as straight as possible away from the shield, high pressure, and interference sources;
code
arduino
demo video
https://www.youtube.com/watch?v=LDGr38Ie1L4