Raspberry Pi IR Controlled Air Conditioner

Foreword

A few days ago, the sky lantern and feeding lamp were connected to the Internet of Things, and now the air conditioner is ready to be connected, so I bought this IR infrared control expansion board for Raspberry Pi, but the seller did not provide technical support. After a few days of tossing, I found sj1It turned out to be disconnected, which caused the infrared emission to be unable to connect. Just give it a soldering iron.

Tutorial

1. Raspberry Pi system installation lirc

sudo apt install lirc

1. Edit the lirc configuration file vim /etc/lirc/lirc_options.conf

willdriver = devinputdevice = autochange into:driver = defaultdevice = /dev/lirc0

1. Edit the boot configuration file vi /boot/config.txt

dtoverlay=gpio-ir,gpio_pin=18dtoverlay=gpio-ir-tx,gpio_pin=17

Restart the viewing device, corresponding to the launch tube and the receiver tube: ls /dev|grep lirc

lirc0lirc1

1. Test mode2 -d /dev/lirc1

Using driver default on device /dev/lirc1Trying device: /dev/lirc1Using device: /dev/lirc1Warning: Running as root.At this time, find a remote control, press the button, and the output will be no problem

1. Edit air conditioner configuration file [email protected]:/etc/lirc/lircd.conf.d vim midea.conf#

begin remotename mideaflags RAW_CODESeps 30aeps 100gap 19991begin raw_codesname open4442 4435 530 1663 530 552530 1664 530 1663 527 555529 553 530 1663 529 553529 553 529 1666 529 559521 554 529 1663 531 1663528 553 530 1669 525 1663530 1662 531 1663 530 1666...name close4442 4435 530 1663 530 552530 1664 530 1663 527 555529 553 530 1663 529 553529 553 529 1666 529 559521 554 529 1663 531 1663528 553 530 1669 525 1663530 1662 531 1663 530 1666...end raw_codesend remote

Use mode2 -d /dev/lirc1 to copy the content of the middle number and press the corresponding key, not a very large number, or use irrecord -d /dev/lirc1 .lircd.confCopy and record automatically, but I have been unsuccessful for a long time

1. Restart lirc and use service lircd restart to test irsend SEND_ONCE midea open The air conditioner feedback is correct, then copy more buttons