Principles and Classification of Common 315/433 Wireless Remote Control Devices

Principles and Classification of Common 315/433 Wireless Remote Control Devices

Wireless remote control modules are widely used in remote switches, vehicle unlocking, garage door control, access control systems, and other fields. A set of remote control receiving devices consists of a transmitting part and a receiving part. The transmitter encodes the control button pressed by the user into a radio frequency signal and then transmits … Read more

315M Transmission Circuit Principles and Usage of 315M Wireless Module

315M Transmission Circuit Principles and Usage of 315M Wireless Module

315M Transmission Circuit Principles In a static state, 12V provides voltage to the collector of Q2 through L1, R1, and the base-emitter of Q1. When data arrives, Q2 turns on, causing the emitter of Q1 to be at 0 potential, which means Q1 is initially off. When the emitter of Q1 is at 0 potential, … Read more