These days, 433-MHz RF transmitter/receiver modules are very popular with electronics hobbyists and tinkerers. These cheap short-range radio modules can be used with almost all microcontrollers for a ...

In this design idea, you will learn how to interface two PIC microcontrollers using a wireless 433-MHz RF ... relays. Listings 1 and 2 below show the code for the transmitter and receiver ...

The RF receiver can receive these signals only if it is configured for the pre-defined signal/data pattern. An ideal solution for this application is provided by compact transmitter and receiver ...

In essence, you connect a common 433 MHz receiver module to an ESP32 or ESP8266 microcontroller ... have it toggle a relay hooked up to a loud siren. Even if you aren’t looking to make your ...

But if you have, say a receiver in a cabinet or ... That’s why some equipment now uses RF remotes. [Xtropie] used a pair of inexpensive 433 MHz RF modules to convert an IR system to RF.

Using an EH4104R single zone fire RF receiver with relays and an EH1115EOL single input fire RF transmitter, a wireless link can be easily created for any fire switch with standard contacts.

RF module does have some limitations which is it can only provide one way data transfer. Extra data can only be sent by transmitter to the receiver but not the other way around. This factor limits ...

In this design idea, you will learn how to interface two PIC microcontrollers using a wireless 433-MHz RF transmitter/receiver pair to control up to six relays ... The RF modules (PT2262) used ...