Demo Video

ESP32 Canon BLE Remote Library

This Bluetooth remote library aims to replicate Canon's BR-E1 bluetooth remote behavior, since modern Canon Cameras doesn't have wired shutter trigger port anymore. Ex. EOS M50, EOS R, EOS EP.

This library is adapted and inspired from BR-M5

Features

• Single firing and focus commands.
• Pair and remember. (Paring is only required for initial connection)
• Auto re-connect.

Installation

1. Install ArduinoNvs library, uses to store paring data to ESP32 NVS storage.
2. Install this library from the following way.

• Platform IO Library Manager
• Arduino IDE Library Manager
• Manual installation by copying this repository to your library folder

Usage

I'm highly recommend you to checkout example code to see how to use it.

1. On camera, go to Wireless Communication Settings > Bluetooth Function > set bluetooth function to Remote. Clear all existing connection (if necesary) and press Pairing.
2. Call pair() function. If you're trying example code, press shutter button while booting ESP32 to enter pairing mode.
3. For picture mode, enable remote shutter in drive mode menu (Self-timer:10s/Remote). For video mode, press menu button and enable remote control.

If paring doesn’t work, clear all existing connection, power off and re-insert battery (necessary), then try again.

Schematic for testing

Tested device(s)

• Canon EOS M50 (EOS Kiss M)

(Feel free to help me test with other cameras, but technically, it should work)

Background Info

• CB Remote Android App
• Canon DSLR Bluetooth Remote Protocol Reverse Engineering

To-do

• [ ] Add support for W/T buttons.
• [ ] Optimize and cleanup code.
• [ ] Eliminate other dependency.

Feel free to contribute!