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I decided to revisit my OpenGarage today, which has had this problem for a very long time. I started using a MyQ instead, but would prefer the OpenGarage to work.
Long story short, I got on the ladder and removed the top piece of the acrylic case. For the last hour it has only varied +/- 1cm, instead of +/- 3000cm.I’m hopeful that I can just use this, since the MyQ has it’s own problems!
I gave up on my OpenGarage a long time ago… over a year ago. My readings jumped all over the place. I tried flashing different versions of the software, using different USB bricks, etc.
I think I just solved it, but will have to watch it for a bit longer before I get too excited.
All I did was remove the case cover, and now the readings are +/- 1cm!
Follow the instructions there. Once set up, Home Assistant talks directly to your device (s) over WiFi.
All of the tools that I found on the FAQ page or in forum posts for re-flashing didn’t work for me.
You need a Serial to USB converter, which are very cheap. It needs to have a 5v option. Most can switch between 5v and 3.3v.
You also need some DuPont wires to make the connections.
On the OpenGarage there are 6 holes (iirc), of which you use 4. You use GND, 5v, Rx, and TX. Rx goes to Tx on your adapter.
Hold the button on the OG while plugging in the USB and it’ll be in flashing mode.
On my computer (I have Linux) I installed esptool from the software center. On Windows or Mac you can research how to install esptool.py.
Download og_1.1.0.bin from the OpenGarage “compiled” folder on GitHub.
I used the command:
esptool.py –port /dev/ttyUSB0 write_flash 0x00000 og_1.1.0.bin
You might just need “esptool” instead of “esptool.py”, and you might need to use “sudo” in front to get out permission to the USB.
If you want more help with flashing these chips, searching for “how to flash Sonoff” will bring up lots of info and videos, which are similar to the OpenGarage.
https://opengarage.io/faqs/ is where it talks a bit about it. It also has a link for downloading tools to flash 1.0.1, which I eventually managed to do.
Unfortunately I can’t succeed in any OTA updates or flash any new bin files.
The OTA gets as far as “rebooting”, but nothing happens. When I try flashing other versions the device usually enters a bootloop (continuous startup sound) or doesn’t turn on at all.
