A MicroPython module for over-the-air (OTA) firmware updates via GitHub releases, enabling remote code deployment on microcontrollers.
MicroPython OTA Updater is a Python module that enables over-the-air firmware updates for devices running MicroPython. It solves the problem of manually updating code on remote microcontrollers by automating the download and installation of new releases from GitHub, making it ideal for IoT and embedded systems deployed in the field.
Developers and hobbyists working with MicroPython on microcontrollers like ESP32 or M5Stack, who need to manage and update firmware remotely without physical access to devices.
It provides a lightweight, GitHub-integrated solution for OTA updates that handles memory constraints and preserves configuration files, offering more control and automation compared to manual firmware flashing methods.
OTA Updater for MicroPython
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Directly fetches updates from GitHub releases, simplifying version control and deployment by tying firmware updates to tagged releases, as outlined in the workflow.
Optimized for low-memory devices like M5Stack Core 1, allowing OTA updates on constrained microcontrollers, a key improvement noted in the history section.
Automatically keeps sensitive files such as WiFi credentials intact across updates, ensuring they are not overwritten or exposed in version control, as detailed in the extra features.
Supports private GitHub repos using authentication tokens, enabling secure OTA updates for proprietary or closed-source projects, demonstrated in the code examples.
Cannot be used on ESP8266 devices due to a bug in the SSL library, limiting its applicability to a common microcontroller platform without reliable workarounds.
Updates often necessitate a machine.reset() after installation, which can disrupt device operation and requires careful sequencing in the boot process, adding complexity.
The README does not detail robust error recovery or rollback mechanisms, increasing the risk of bricked devices if an update fails mid-process.