Remote Lighthouse

React Native App + Arduino Uno + ESP32 WiFi module

Replace every remote control in your house with a single app. ir-mobile will listen to the infrared codes your remote controls emit and map them to buttons in the app.

Hardware

• ESP32 WiFi/Bluetooth Module
• IR Transmitter LEDs
• IR receiver component
• rgbLED
• various resistors/transistors

You will need to install

• Arduino IRemote library
• bbx10's esp32 ports

API

• GET ESP_IP_ADDRESS/rec: puts hardware in 'listening' mode for IR codes
• GET ESP_IP_ADDRESS/stop: stops record mode
• GET ESP_IP_ADDRESS/send?type=CODE_TYPE&value=CODE_VALUE&length=CODE_LENGTH: transmit code via IR
• GET ESP_IP_ADDRESS/check: returns value of any IR codes heard

  // Successful call to /check returns the following JSON object
  {
      type: oneof 'NEC', 'JVC', 'PANASONIC', 'RC5', 'RC6',
      value: hex string representing an unsigned long,
      length: length of the IR code in bits
  }

Where ESP_IP_ADDRESS is the address of the ESP on your network, for example 192.168.86.99

Wiring

Flash bin to ESP-32

• ./esptool.py --port /dev/tty.SLAB_USBtoUART write_flash --flash_mode qio --flash_size 4MB --flash_freq 80m 0x10000 /Users/danielmerrill/Dev/ir-mobile/ESP32-ir-mobile/ESP32-ir-mobile.ino.esp32.bin
• Run from the folder where you downloaded esptool above^^
  replace the serial port after --port with whatever the esp32 is listed as, and the path for the .bin and you should be good to go
• Once flashed you can verify it's working by restarting the esp32 with the serial monitor open in Arduino IDE

Other references used:

• Reading IR codes: https://github.com/z3t0/Arduino-IRremote/blob/master/examples/IRrecord/IRrecord.ino
• Setting up server on ESP8266/ESP32: https://tttapa.github.io/ESP8266/Chap10%20-%20Simple%20Web%20Server.html
• Reading query params: https://techtutorialsx.com/2016/10/22/esp8266-webserver-getting-query-parameters/
• USB to UART driver (necessary to see ESP32 as a serial port): https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers