esp32-firmware-update

Update ESP32 firmware over WiFi from Github

This includes a python script which generates the update json file based on the firmware version stated in the Arduino sketch. The script also renames the generated binary file from the Arduino IDE.

• update your code
• export compiled binary
• commit & push to github
• the rest is history

Setup

If you clone this repository, make the following changes

workflow

git config --local user.email "your@email.com"
git config --local user.name "username"

sketch

String baseUrl = "https://raw.githubusercontent.com/{your github username}/esp32-firmware-update/main/";

/* your wifi credentials */
char * WIFI_SSID = "wifi name";
char * WIFI_PASS = "wifi password";

Releasing Updates

• Clone the repo and make changes to the code using Arduino IDE
• Upload the sketch to the ESP32 if this is the first time
• Increment the currentVersion in the sketch
• Export compiled binary (Ctrl+Alt+S) using Arduino IDE
• Commit and push the changes to Github
• The workflow will run the script to generate json file and rename the bin file
• Once the ESP32 finds higher versionCode in the json file it will download and update the firmware