MicroPython Forum (Archive)

I have already implemented deepsleep on a long press of a button (and the press the same button to come out of deepsleep). I'm trying to reduce power consumption during operation when the device is continuously sampling data

Thanks! You really scared me hahahah I would love to hit a minimum of 30 hours. So you can just charge it once a day and still have some margin, even accounting for battery degradation :) Reaching 30 mA would allow me to scale down the battery to something like 800 mAh which could maybe fit in a (bi...

Are you sure about your battery life estimation? From my tests, in USB (5V) I am currently using about 1 or 2 mAh/min (given by my wattmeter). So a 1400 mAh battery would be way enough to run the device for an entire day if I reach 30mA. I was thinking of using a ADXL345 accelerometer to replace the...

Hi everyone, I am currently finalizing my first prototype ever: an arm band that sense acceleration, electrodermal activity and BVP (Blood Volume Pulse)! As you can imagine, I am very excited as it is my first electronics project ever. Here is the list of the components I use: ESP32 Devkit C MPU6050...

Hello! I am very interested in what you did. I'm working on the same kind of problems and started a similar discussion some time ago (i.e. how to write a lot of data in a file without impacting the performance too much). I am gonna try to replicate what you did but I wanted to know if you could post...

Isn't calling the GC before showing the available memory cheating? It doesn't remedy the fact that the heap is filling up with no obvious reason to me and introduces a blocking step. From my benchmarks, using a thread instead of another coroutine is faster and therefore yields better results. It doe...

Ok, I found that the leak seems to come from the packing step as well as from the reading of some sensors like the MPU6050 accelerometer...

Thank you both for your replies. I already tried this implementation but at the time I made a mistake and discarded the idea. Today I tried to implement it again. It works BUT I still have a memory leak... As an example, here, each half second I lose around Ko of RAM. I know printing values will con...

Hello, I have a program that needs that writes measures into a bugger that i then flushed into a file every half second. Because I'm using multiple uasyncio coroutines, I cannot simply create a fixed size array/bytearray into which I put my data throughout the half second (I tried). There are two ma...

Yesterday after seeing you post and before going to bed I turned down my tower PC and retested the esp32 with my portable computer and didn't see the same interference so I likely identified the source haha Thanks a lot for your valuable feedback. My goal is to build a "watch" (more like a big brace...