中文 | English
What is the RF Module (Transmitter & Receiver)
Date:2017-11-24 9:54:42   Browse:33

The RF module, as the name suggests, operates at Radio Frequency. The corresponding frequency range varies between 30 kHz & 300 GHz. In this RF system, the digital data is represented as variations in the amplitude of carrier wave. This kind of modulation is known as Amplitude Shift Keying (ASK).

 

Transmission through RF is better than IR (infrared) because of many reasons. Firstly, signals through RF can travel through larger distances making it suitable for long range applications. Also, while IR mostly operates in line-of-sight mode, RF signals can travel even when there is an obstruction between transmitter & receiver. Next, RF transmission is more strong and reliable than IR transmission. RF communication uses a specific frequency unlike IR signals which are affected by other IR emitting sources.

 

Pin Diagram: 

Pin Description: 

RF Transmitter

 

Pin No

Function

Name

1

Ground (0V)

Ground

2

Serial data input pin

Data

3

Supply voltage; 5V

Vcc

4

Antenna output pin

ANT

 

 

RF Receiver

 

Pin No

Function

Name

1

Ground (0V)

Ground

2

Serial data output pin

Data

3

Linear output pin; not connected

NC

4

Supply voltage; 5V

Vcc

5

Supply voltage; 5V

Vcc

6

Ground (0V)

Ground

7

Ground (0V)

Ground

8

Antenna input pin

ANT

 


prev: What is LoRa
next: What is a Wireless & RF chip