Linux Infrared Remote Control

Is a Linux Software that can be used to send & receive infrared commands

Hardware

IR Emitter

• On Raspberry Pi, any GPIO can be used
  • The LED can be connected directly to GPIO, but with a low power
  • A PN2222 Transistor + Resistor can be used to drive more power according to this schema

IR Receiver

• Has 3 pin, when looking at the window (VS1838B)
  • Left: Data → Raspberry Pi
  • Middle: Ground → Ground
  • Right: Power → 3.3v
• When I'm using it on Raspberry Pi 1
  • Ground = Pin 9
  • Data = Pin 11 (GPIO17)

Software with Raspberry Pi

Receiver setup

Source, assuming IR Receiver on GPIO 17 - apt install lirc - nano /etc/lirc/lirc_options.conf conf driver = default device = /dev/lirc0 - nano /boot/config.txt - At the end of the file: - dtoverlay=gpio-ir,gpio_pin=17 - reboot - systemctl stop lircd.service - mode2 -m -d /dev/lirc0 to see inputs

Mapping table

• All available remote mapping table

Record

• List all spaces: irrecord --list-namespace
• Record in raw mode: irrecord -f
  • And/or use the mode2 command above to complete the file
• Replay a command: irsend SEND_ONCE remote KEY