MicroPython Forum (Archive)

Other than the desiccant, did you do anything else to clean the boards? No, I didn't. I'm a novice with electronics. The TP4056 is, unfortunately, securely fastened to the board and I don't think I have enough skill to desolder it. I do have about 10 copies of the main board and enough parts to mak...

I made a small weather station using a 18650 Lithium battery, a small solar panel, a TP4056, a BME280 and a Wemos D1 Mini Pro. Everything was working fine until a bad storm, when the device fell onto my deck and the rain was on it for a couple of days. I was away and came back to the device not work...

Hi Robert, I'm using your BME280 library and it works great! By default, it uses Forced mode, correct? It takes a sample and then goes to 'sleep'? I looked at one of your calculations and that seems to be the case. I've had just the basic Wemos and BME280 circuit on my breadboard for a couple of wee...

Robert, thanks for your detailed and quick reply.

I made a dumb error. I looked again at the resistor pack and I had 220 Ohm instead of 220 KOhm. I went to Radio Shack since I posted, managed to get the old one off (no small feat for me!) and I'm back in business.

Case closed!

Could it be that the brand new battery is supplying a high voltage, maybe higher than 5V? It is an 18650 going through a TP4056. The 220k resistor is connected to the output voltage of the TP4056 and goes to pin A0 (as well as going to VCC) of the Wemos. Everything else is working -- I just always w...

Just yesterday, I finished making this project: https://www.instructables.com/id/Solar-Powered-WiFi-Weather-Station-V20/ I rewrote the code in MicroPython and I'm fairly pleased with the results. What does not seem to work is the voltage detection. There is a 220k resistor between the battery and th...

Okay, one thing I'm going to try is to disconnect it from my USB3 hub on my monitor. I had an issue with a Wemos D1 mini with a PIR sensor sending the state of the sensor to my Home Assistant software. Periodically, it would crash. I solved the problem by connecting the device to a power supply, not...

I can try that. I am in a little over my head. :) What sort of things would I be looking for there? When should I run that method? When the board is unstable? I ran the code overnight on my breadboard and there was no error. It ran for about 12 hours. I do a small check by writing the time to a file...

I let my program run for a couple of weeks while some of the parts from China arrived in the mail. I seem to have enough memory to run the blinklib.py library and do a ssl request to Thingspeak. Most of the time. My program runs for about 10 seconds and goes into deep sleep for about 10 minutes, the...

I worked on this for a few days. I managed to free up a couple of kilobytes of RAM by doing manual garbage collection and further breaking down things into separate modules. I also tried using urllib.urequest.urlopen() using ssl. My program runs every 10 minutes, doing a deep sleep between cycles. I...