This cost-effective 433MHz wireless relay switch circuit allows remote relay control using an RF transmitter and receiver module. It is ideal for scenarios where wired connections are impractical or ...

A fully secure receiver and transmitter pair works on radio frequency, Control the things wirelessly without internet, Wifi and bluetooth. Get all the required files and more info about the same ...

Abstract: This paper presents a intelligent long-distance running test system based on RFID technology, 433MHz wireless communication technology and WEB server technology. The system is committed to ...

Abstract: For traditional manual meter-reading efficiency is low, large errors and other shortcomings, a remote wireless meter-reading system based on 433MHz wireless communication and GPRS technology ...

The exact components that I use are in the links below, but the process and code should is the same. I want to have a smart doorbell in order to receive notifications on my phone/watch when someone ...