What RF 433?
Table of Contents
What RF 433?
RF 433 MHz units are 433MHz radio modules are modules which can communicate using the 433 MHz frequency band. It works like any wireless system : a system using these modules is composed of a transmitter and a receiver. They’re massively used in system like a garage door, wireless doorbell, etc…
How far can 433MHz transmit?
433MHz FM RF Transmitter Module with Transmit Range up to 300m.
Is Zigbee a 433 MHz?
Power usage of 433 MHz devices is also relatively low and comparable to other dedicated home automation standards like Z-Wave or Zigbee. This makes 433MHz also suitable for battery-operated devices like wireless sensors or buttons.
How do I pair my 433mhz remote to my receiver?
Long press the channel button that you want to pair on 4CHPROR3 until the red Wi-Fi LED flashes quickly once and release, then short press the remote control button that you want to pair and the red Wi-Fi LED flashes quickly once again indicates that you paired the button successfully.
What is an Arduino RF module?
These RF modules are very popular among the Arduino tinkerers and are used on a wide variety of applications that require wireless control. These modules are very cheap and you can use them with any microcontroller, whether it’s an Arduino, ESP8266, or ESP32. Where to buy? You can purchase these modules for just a few dollars.
How to communicate between two Arduino boards using RF?
For short range, low-budget communication between two microcontrollers, one of the most preferred medium used is Radio Frequency (RF) communication using the 433MHz RF transmitter and receiver modules. For today’s tutorial, we will look at how to use these modules to establish communication between two Arduino boards.
What is the RF transmitter module?
The RF Transmitter Module consists of 4 – pins: VCC, GND, Data and Antenna. VCC and GND pins are connected to 5V and ground respectively. The data pin is connected to any of the digital input / output pin of Arduino.
What is the frequency of the RF transmitter/receiver?
The transmitter/receiver (Tx/Rx) pair operates at a frequency of 434 MHz. An RF transmitter receives serial data and transmits it wirelessly through RF through its antenna connected at pin4.
