Seeed 433mhz rf transmitter and receiver link kits seeed studio 113990018 the long range rf transmitter and receiver kit from seeed studio consists of one transmitter and one receiver and is useful for remote control projects that dont require two way communication to attach one of these modules to a microcontroller you need to supply power and 4 digital data lines so its light in terms of gpio pinsseeed provide technical documentation example projects and software libraries on their pr