IR remote commander for Alexa (Amazon echo) by ESP32

Thanks to fauxmoESP , voice command can send IR signal to control nearby appliances. Change json data in the source code for the device to be controlled by IR remote controller.

How to get IR command Json data

• step 1 setup serial terminal software (teraterm etc) , set speed 115200bps.
• step 2 run ESP32_fauxmoESP_IR_recorder.ino
• step 3 send IR signal by pressing a button on your remote controller.
• step 4 copy the json data recorded by ESP32_fauxmoESP_IR_recorder.ino and past it into ESP32_fauxmoESP_sender.ino
• step 5 prepare credentials.h for your WiFi AP and run ESP32_fauxmoESP_IR_sender.ino this program appears as "switch one" in Alexa application
• step 6 install Alexa application from GooglePlay and add "switch one" as "aircon" from smarthome menu.
• step 7 wait for few seconds to connect to WiFi access point and recognized from Amazon Echo
• step 8 speak to Amazon Echo "turn on aircon", "turn off aircon"

ESP32_fauxmoESP_IR_sender
20180504
[WIFI] Connecting to aterm-3933 ........
[WIFI] STATION Mode, SSID: aterm-3933, IP address: 192.168.13.11
[MAIN] Device #0 (switch one) state: ON
{"message":{"format":"raw","freq":38,"data":[7620,3744,980,894,984,2794,984,892,984,2794,982,894,984,2792,984,894,984,2792,984,894,984,2794,982,894,984,2794,982,2792,982,894,986,2792,982,894,986,2794,980,2792,982,2794,982,2794,982,894,984,894,984,2794,982,2792,982,894,986,894,984,894,984,894,986,2790,984,894,984,894,984,896,984,2794,982,2792,984,2790,984,894,984,894,984,894,984,894,986,894,984,2792,984,894,984,894,984,894,984,2794,984,892,984,894,986,892,984,896,984,2794,982,894,984,894,984,894,986,2786,986,894,984,894,986,894,984,894,984,894,986,892,986,894,984,894,986,892,984,894,986,892,986,894,984,894,984,2794,982,894,986,892,986,892,986,894,984,894,986,892,986,894,984,894,984,894,984,894,986,892,986,2792,984,894,982,896,984,894,984,894,984,896,984,894,984,894,984,894,984,896,986,892,984,2792,984,894,984,2792,984,2790,984,2792,984,2794,982,2790,984,894,986,892,986,894,984,894,984,894,984,894,984,896,984,0]},"hostname":"IRKitD2A4","deviceid":"XXXXXXXX"}
Json parsed
rmt_tx_task created
send.............  done
[MAIN] Free heap: 134524 bytes
[MAIN] Device #0 (switch one) state: OFF

what's new

• Json data for NEC sealing light and SHARP air conditioner are included in the source.

License: Apache License v2

hardware:

• CHQ1838 IR receiver output is connected to GPIO 35
• IR LED is connected to GPIO 33 , driven by NPN transiter 2N5551

References

fauxmoESP: Amazon Alexa support for ESP8266 and ESP32 devices.

• https://bitbucket.org/xoseperez/fauxmoesp

How to use IR sender / receiver on ESP32

• https://qiita.com/td2sk/items/4c0ef83bcc7e74e5e8d5

sender/receiver code for ESP32

• https://github.com/espressif/esp-idf/blob/master/examples/peripherals/rmt_nec_tx_rx/main/infrared_nec_main.c

Json format for IR controller is compatible with IRKit

• http://getirkit.com/en/

sigrok logic analyzer

• https://sigrok.org/wiki/PulseView
• http://www.geeetech.com/wiki/index.php/CY7C68013