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ratgdo / homekit-ratgdo

A native HomeKit implementation of a Security+ 2.0 garage door controller based on ratgdo hardware
https://ratgdo.github.io/homekit-ratgdo/
GNU General Public License v3.0
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Add OTA support #20

Closed thenewwazoo closed 9 months ago

thenewwazoo commented 10 months ago

I think the ESP8266-based devices' flash is too small (confirm this), but the ESP32 should easily support OTA updates.

So, like, do that.

PaulWieland commented 10 months ago

ESP8266 supports OTA. Both the mqtt and esphome firmwares have it built in.

thenewwazoo commented 10 months ago

The chip does, but the 1 MB flash isn't big enough to fit the OTA image. HomeKit is kind of a pig. :(

From the build output:

Flash: [=====     ]  51.5% (used 538260 bytes from 1044464 bytes)
dkerr64 commented 10 months ago

This is definitely needed. It is impractical (impossible) to need to physically connect a USB wire to the Ratgdo to flash new firmware.

PaulM4031 commented 10 months ago

If I understand correctly you're saying the Arduino HomeKit SDK is too large to flash on 8266 SoCs? If so, would moving to ESP HomeKit SDK (https://github.com/espressif/esp-homekit-sdk) enable generating a smaller flash file?

thenewwazoo commented 10 months ago

@dkerr64 I've updated the README to better set expectations. Hopefully that clarifies things a bit.

@PaulM4031 since I wrote this as a hobby project to scratch my own itch, I didn't perform any kind of rigorous systems engineering in order to design the software so... I don't know, I haven't tried. It's possible that the firmware would be smaller, but it might also be bigger due to including an RTOS. I've been uncomfortable with the state of the Arduino-HomeKit-ESP8266 project's maintenance anyway, so I would certainly not be opposed if someone wanted to experimentally port this firmware to use that HAP implementation.

PaulM667 commented 10 months ago

@thenewwazoo Appreciate all the hard work!!

I'm with you on your original comment, I would go to ESP32 long before changing the HomeKit SDK. More i looked into ESP HomeKit SDK it would require refactoring a significant portion of the code.

sstoiana commented 10 months ago

Apparently all of the ESP8266 modules (ESP12F and ESP8266MOD) on the ratgdo are 4m and not 1m flash. PR #50 implements OTA updates via the HTTP server. No code signing, authentication or authorization yet.