esp-idf-rc-switch

315/433MHz ASK RF driver for esp-idf.
There are several repositories available for esp-idf, but I couldn't find a submittable library.
This repository can send and receive.

I ported from here.

Software requirements

ESP-IDF V5.0 or later.
ESP-IDF V4.4 release branch reached EOL in July 2024.

Hardware requirements

This project supports these wireless transceivers.

• Transmitter
  H34A-315/H34A-433
  SYN115
  STX882

• Receiver
  H3V3/H3V4
  SYN480R
  LR43B/LR33B
  SRX882/SRX887

I used these transceivers.

Installation

git clone https://github.com/nopnop2002/esp-idf-rc-switch
cd esp-idf-rc-switch
idf.py menuconfig
idf.py flash

Configuration

For Receiver

For Transmitter

The available protocols are:

static const Protocol proto[] = {
  { 350, {  1, 31 }, {  1,  3 }, {  3,  1 }, false },    // protocol 1
  { 650, {  1, 10 }, {  1,  2 }, {  2,  1 }, false },    // protocol 2
  { 100, { 30, 71 }, {  4, 11 }, {  9,  6 }, false },    // protocol 3
  { 380, {  1,  6 }, {  1,  3 }, {  3,  1 }, false },    // protocol 4
  { 500, {  6, 14 }, {  1,  2 }, {  2,  1 }, false },    // protocol 5
  { 450, { 23,  1 }, {  1,  2 }, {  2,  1 }, true },     // protocol 6 (HT6P20B)
  { 150, {  2, 62 }, {  1,  6 }, {  6,  1 }, false },    // protocol 7 (HS2303-PT, i. e. used in AUKEY Remote)
  { 200, {  3, 130}, {  7, 16 }, {  3,  16}, false},     // protocol 8 Conrad RS-200 RX
  { 200, { 130, 7 }, {  16, 7 }, { 16,  3 }, true},      // protocol 9 Conrad RS-200 TX
  { 365, { 18,  1 }, {  3,  1 }, {  1,  3 }, true },     // protocol 10 (1ByOne Doorbell)
  { 270, { 36,  1 }, {  1,  2 }, {  2,  1 }, true },     // protocol 11 (HT12E)
  { 320, { 36,  1 }, {  1,  2 }, {  2,  1 }, true }      // protocol 12 (SM5212)
};

//{pulseLength, {syncFactor.high, syncFactor.low}, {zero.high, zero.low}, {one.high, one.low}, invertedSignal}

Wirering

Radio Module		ESP32
DATA	--	GPIO4
GND	--	GND
VCC	--	3.3V

You can change data pin to any pin using menuconfig.

Communicat with Arduino Environment

I used this library on Arduino environment.
The sample code for the Arduino environment can be found in the ArduinoCode folder.

From ESP32 to UNO

From UNO to ESP32

Using garage door 315/433MHz Remote

You can control ESP32 using garage door 315/433Mhz remote.
You can buy it on AliExpress or eBay for about $3.

Build the firmware as Receiver.
Fire the RF using the RF remote control.

Using USB Remote Control Switch

We can obtain products that turn USB on/off with a remote control about $4.
Both of these use a frequency of 433MHz radio signal.
Using these, you can turn on/off the USB device from the ESP32.
The protocols, number of bits, and codes used differ depending on the product, so please check in advance.
You can use this project to find out what protocols, bit depths, and codes they use.

You can turn USB on/off by sending the same protocol, number of bits, and code.

• Products on the left

I (5260) MAIN: Received 16065448 / 24bit Protocol: 1
I (5360) MAIN: Received 16065448 / 24bit Protocol: 1
I (6400) MAIN: Received 16065444 / 24bit Protocol: 1
I (6500) MAIN: Received 16065444 / 24bit Protocol: 1
I (6600) MAIN: Received 16065444 / 24bit Protocol: 1

• Products on the right

I (30320) MAIN: Received 1761060 / 24bit Protocol: 1
I (30410) MAIN: Received 1761060 / 24bit Protocol: 1
I (30500) MAIN: Received 1761060 / 24bit Protocol: 1
I (30600) MAIN: Received 1761060 / 24bit Protocol: 1

How to use this component in your project

Create idf_component.yml in the same directory as main.c.

YourProject --+-- CMakeLists.txt
              +-- main --+-- main.c
                         +-- CMakeLists.txt
                         +-- idf_component.yml

Contents of idf_component.yml.

dependencies:
  nopnop2002/RCSwitch:
    path: components/RCSwitch/
    git: https://github.com/nopnop2002/esp-idf-rc-switch.git

When you build a projects esp-idf will automaticly fetch repository to managed_components dir and link with your code.

YourProject --+-- CMakeLists.txt
              +-- main --+-- main.c
              |          +-- CMakeLists.txt
              |          +-- idf_component.yml
              +-- managed_components ----- nopnop2002__RCSwitch

Reference

Some example project using USB Remote Control Switch.
https://github.com/nopnop2002/esp-idf-usb-switch