MicroPython Forum

A first step is to read the Contributor Guidelines and code conventions.

DNS queries can be expected sometimes to fail. The reason no error message is displayed is because you are trapping the resultant OSError and ignoring it. If you are always accessing the same IP address (or small set of addresses), you could do the DNS query/queries when the application starts (repe...

Most applications involving displays instantiate the display early in the code's execution. That instance - typically a global singleton - is then available for use by any other object.

I would look at uasyncio. There is a learning curve, but in most cases it's the easiest way to manage tasks involving time delays. See the docs and this tutorial.

... Difficult, but not impossible... I was suggesting that supporting MQTT using the ESP in its original "modem" mode would be problematic. I fully accept that it should be possible to write a MicroPython driver to provide a BSD socket to a non-networked client. This would communicate via a UART wi...

Please see the micropython-remote library which does this.

...I'm not sure if it is useful to handle such a small delay with asyncio. Fair point. A non-sync send() returns in less than a millisecond. As the ESP-Now docs say, these responses come from very low down in the network stack and don't guarantee the message has been or will ever be received by an ...

upip is intended to run on a device with a network connection. For non-networked targets there is micropip which runs under CPython and enables libraries to be installed to a PC's filesystem: the result can then be copied to the target's filesystem.

The other option is to use a host with a decent DAC such as a Pyboard. Note that, in my testing, the ESP32 DAC is also adrift at the high end of its range.

OK, so the question is whether anyone has written a MicroPython driver for the GC9A01 display. I'm not aware of one, and a forum search draws a blank. You may have to DIY. This usually involves porting Arduino C code to MicroPython, a task that requires familiarity with low level coding in both lang...