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InfraredRemoteReceiver

README.md

🌶️🌶️ - Infrared remote receiver based on VS1838 with RMT

Shows how to use ESP32 RMT with VS1838 infrared receiver to create remote. Nec protocol parser is defined with base class for other protocols.

See explanation of Nec protocol: Nec protocol doc

The sample is located here.

Connections

  • DATA - Any available GPIO pin, D15 in this case
  • VCC - 3.3V
  • GND - Ground signal

Connections

Hardware requirements

Any ESP32 hardware device running a nanoFramework image.

Behavior of application

It may happen, especially with poor quality remotes, that signal won't be recognized at first trial. With Arduino DevKit remote, which uses Nec protocol, it works better when buttons are pressed once an shortly as otherwise it will send repeat command. That repeat might be included into origin message by RMT.

Example of correct message:

Length:34
new RmtCommand(9375,false,4441,true),
new RmtCommand(666,false,515,true),
new RmtCommand(665,false,511,true),
new RmtCommand(665,false,512,true),
new RmtCommand(666,false,512,true),
new RmtCommand(666,false,511,true),
new RmtCommand(649,false,529,true),
new RmtCommand(664,false,513,true),
new RmtCommand(663,false,513,true),
new RmtCommand(664,false,1595,true),
new RmtCommand(665,false,1592,true),
new RmtCommand(665,false,1593,true),
new RmtCommand(661,false,1596,true),
new RmtCommand(660,false,1597,true),
new RmtCommand(661,false,1594,true),
new RmtCommand(636,false,1621,true),
new RmtCommand(644,false,1612,true),
new RmtCommand(633,false,543,true),
new RmtCommand(631,false,1626,true),
new RmtCommand(633,false,543,true),
new RmtCommand(630,false,1626,true),
new RmtCommand(659,false,1598,true),
new RmtCommand(656,false,520,true),
new RmtCommand(629,false,1627,true),
new RmtCommand(634,false,542,true),
new RmtCommand(629,false,1628,true),
new RmtCommand(655,false,521,true),
new RmtCommand(629,false,1628,true),
new RmtCommand(655,false,521,true),
new RmtCommand(630,false,545,true),
new RmtCommand(630,false,1627,true),
new RmtCommand(633,false,544,true),
new RmtCommand(647,false,1612,true),
new RmtCommand(658,false,0,true),

Protocol: 1 Address: 0 Command: 90 from Payload: 00000000111111110101101010100101

Example of correct repeat message:

Length:2
new RmtCommand(9371,false,2178,true),
new RmtCommand(661,false,0,true),

Protocol: 1 Address: 0 Command: 90 from Payload: 00000000111111110101101010100101

Example of correct message mixed with repeat, see length = 36 pulses:

Length:36
new RmtCommand(9288,false,4530,true),
new RmtCommand(572,false,585,true),
new RmtCommand(592,false,606,true),
new RmtCommand(572,false,606,true),
new RmtCommand(596,false,581,true),
new RmtCommand(572,false,583,true),
new RmtCommand(620,false,560,true),
new RmtCommand(593,false,606,true),
new RmtCommand(573,false,604,true),
new RmtCommand(595,false,1662,true),
new RmtCommand(572,false,1687,true),
new RmtCommand(570,false,1663,true),
new RmtCommand(620,false,1660,true),
new RmtCommand(573,false,1685,true),
new RmtCommand(596,false,1660,true),
new RmtCommand(571,false,1662,true),
new RmtCommand(621,false,1660,true),
new RmtCommand(572,false,605,true),
new RmtCommand(571,false,606,true),
new RmtCommand(598,false,1637,true),
new RmtCommand(593,false,1686,true),
new RmtCommand(596,false,580,true),
new RmtCommand(571,false,606,true),
new RmtCommand(596,false,558,true),
new RmtCommand(593,false,590,true),
new RmtCommand(585,false,1686,true),
new RmtCommand(571,false,1687,true),
new RmtCommand(596,false,581,true),
new RmtCommand(594,false,584,true),
new RmtCommand(595,false,1665,true),
new RmtCommand(595,false,1663,true),
new RmtCommand(595,false,1663,true),
new RmtCommand(569,false,1689,true),
new RmtCommand(570,false,6751,true),
new RmtCommand(9340,false,2214,true),
new RmtCommand(624,false,0,true),

Protocol: 0 Address: -1 Command: -1 from Payload:

Build the sample

  1. Start Microsoft Visual Studio 2022 and select File > Open > Project/Solution.
  2. Starting in the folder where you unzipped the samples/cloned the repository, go to the subfolder for this specific sample. Double-click the Visual Studio Solution (.sln) file.
  3. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample

  • Select Build > Deploy Solution.

Deploying and running the sample

  • To debug the sample and then run it, press F5 or select Debug > Start Debugging.

Note

Important: Before deploying or running the sample, please make sure your device is visible in the Device Explorer.

Tip: To display the Device Explorer, go to Visual Studio menus: View > Other Windows > Device Explorer.