MicroPython Forum (Archive)

More likely the FTDI board is broken. You have set it to 3.3V. Then the Vcc pin is powered by the internal regulator of the FTDI chip, which cannot supply sufficient current to the ESP32. Edit: The 3.3V output is rated at 50mA max. The ESP32 takes more than 300mA peak. If and only if the ESP32 brea...

Hello all, My ESP32 USB connection is not working anymore. I am trying to program it and access the files stored in it using a FTDI232 programmer same as: https://i.stack.imgur.com/HgnzT.jpg The connections are: FTDI RX ----------- ESP32 TX0 FTDI TX ----------- ESP32 RX0 FTDI VCC --------- ESP32 VIN...

Thanks for the suggestions. Those are indeed very good guides, however the information is very overwhelming for a complete newbie. After gathering bits of information in different sites here is the format that ai would like to have in a guide: 1 - What you need: Windows, Linux or Mac 2 - If you are ...

Hello, im trying to compile micropython for esp32 with this https://github.com/russhughes/st7789_mpy lcd driver, i followed all instructions sudo apt-get -y update sudo apt-get -y upgrade sudo apt-get -y install build-essential libffi-dev git pkg-config cmake virtualenv python3-pip python3-virtuale...

Hello, I am trying to learn how to build the micropython firmware from scratch so that I can add custom modules to it. There seem to be bits of information about it scattered all over the web but, I still haven't found a proper guide to do this. Does anyone know of a guide that is easy for a newbie ...

Hello everyone,

Does anyone has any experience using serial midi with the esp32?

My concern here is that we are using 3V3 and midi usually uses 5V.

Does anyone knows how to MIDI In and MIDI out using the ESP32 Tx and Rx pins?

Hello pythoncoder, I have been trying to understand your code and incorporate with push button inputs to change the frequency of the waves generator. For now I am still not able to change the frequency while the audio engine is working, however I am now able to use uasyncio to do other stuff at the ...

Thanks pythoncoder.

To be honest, I am still trying to understand your code and how to schedule loops with the uasync. However your help was able to lead me in the right way. Now I just need to study about uasync more to get better.

The I2S.shift method handles volume changes. Note that its arg is a number of bits: this gives it a logarithmic response which is what you need for a volume control. My audio demo has a volume control driven by an encoder or pushbuttons. It uses I2S.shift and works well. A second advantage over you...

Thanks everyone for your suggestions. Peter: I tried your code and it does work well, however I dont really understand it. I am working on it to see if I can understand it better and incorportate in my project. Here are some questions related to it: 1 - Is it possible to change the wave amplitude? I...