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 ...

a 5 V from the Arduino and the transmitter. He designed the receiver side with equal care. Conceptually the circuit there is simple, consisting of the ultrasonic receiver, followed by a transistor ...

[GreatScott] does exactly this in the video after the break, building both a transmitter and receiver ... testing two popular 555 transmitter circuits. One uses the control voltage pin to input ...

The transmitter and receiver circuits of the infrared alarm system shown here have been designed for a range of several meters, almost independent of ambient light conditions. Only in the rare case of ...

In this design idea, you will learn how to interface two PIC microcontrollers using a wireless 433-MHz ... circuit uses the EUSART (Enhanced Universal Synchronous Asynchronous Receiver Transmitter ...

rectification and control circuits. The treatment is essentially technological and, in many places, merely descriptive.