IR remote

After Christian at Boot 2020 in connection with his plotter Had introduced a bluetooth remote control there is now a new IR remote control. It had been shown that Bluetooth is not that suitable for a remote control after all, since there were significant problems under Linux with the connection establishment and the remote control did not work as expected. The change to infrared enables the use of inexpensive electronic components in connection with a long running time, since no communication has to be continuously maintained with the IR remote control. The remote control works exactly like the remote controls in the home entertainment area. The only difference is that the remote control is waterproof. In order to simplify the implementation under Linux or in microcontroller environments, an intelligent one was added Receiver with a microcontroller that converts the received signals to I2C.

The remote control has the following specifications:

  • IR signals for data transmission at 36kHz
  • 14 keys with freely definable special functions
  • 2 powerful IR diodes
  • CR2032 head cell as power source
  • Inexpensive hardware with standard components
  • Waterproof, robust housing with hand cord
  • 2 different remote controls can be used simultaneously through coding
  • IR receiver with microcontroller for decoding the signals
  • Forwarding of received signals via I2C bus
  • Dimensions: (L x W x H) 140 x 45 x 25 mm
  • Weight: approx 100g
  • Costs. approx. 35 euros
  • Remote control wiring diagram
  • Circuit diagram for receiver

Possible applications:

  • Remote control for
    • plotter
    • Autopilot
    • Multifunction display
    • Audio
    • light
    • Automation