MicroPython Forum (Archive)

Thanks for sharing that info. Expensive battery! I am looking at some other alternatives like this; https://www.batteryspace.com/lifepo4-18650-rechargeable-cell-3-2v-1500-mah-4-5a-rate-4-8wh-with-iec-62133---un38-3-passed.aspx with similar capacity and a lot cheaper. Very possible that the charger I...

Nice project!

I see that you are using a 18650 battery. What brand is the battery and where do you get them? Also curious to know how you are charging them. It's possible that the charger I am using damages the batteries.

I've got some use cases that require the ESP32 to hibernate most of the time in very-low-power mode running on a battery. Ideally the battery would last quite some time with a hibernation power draw of only ~15uA. Can anyone recommend some options for a good cheap rechargeable battery? I was hoping ...

I was looking at CircuitPython yesterday. Adafruit posted a ton of driver code for it. Probably could be adapted to other MicroPython versions.

https://circuitpython.readthedocs.io/en ... ivers.html

So it is working for you? What cued you to change the flashing options to those particular values?

How are you flashing it?

Now I need to figure out how to send an http request with the socket. Any quick reference? Have you tried the MicroWebCli? It appears to open and manage its own socket so you don't have to bother with that. All you have to do is connect to WiFi. Decodes responses so you can handle them conveniently...

It has been working for me (though adding SSL/TLS does suck up considerable memory). import usocket as _socket def connect(secure, host, port): sock = _socket.socket() addr = _socket.getaddrinfo(host, port) sock.connect(addr[0][-1]) if secure is True: import ussl as ssl sock = ssl.wrap_socket(sock)

Yes I did a number of current measurements in conjunction with deepsleep and other modes. If you would be able to take some similar measurements and post here I would appreciate it.

It's a bit too deep for my level of understanding but from looking at some of the issue reporting it looks like a soft-reset doesn't give you a clean slate to work with as such - I pulled hair out over it for a bit because having a battery connected prevented a hard-reset happening :lol: I've been ...