MicroPython Forum (Archive)

The easiest way to build MicroPython is to load Ubuntu from the Microsoft Store. Type bash in the search box to launch a Ubuntu bash shell using WSL (Windows subsystem for Linux). Then follow the MicroPython readme for building under Ubuntu. I use Tortoise Git and a Windows programmer's editor to ma...

If the supply voltage is less than the reverse breakdown voltage of the LEDs you may not need individual transistors on the shift register outputs, just one transistor or MOSFET on the common GND side of the LEDs driven by a PWM signal. If you only want say 16 levels of brightness you may be able to...

There is no on board Lipo charger and no connector pins to add one without soldering directly to a diode or IC pad. Q1 acts as a diode. When Vbus is absent the Pyboard is powered from the main battery (VBAT). Initially power goes through the body diode. If VBUS is disconnected resistor R22 will turn...

I use MicroPython in commercial products. I haven't had a problem with performance. MicroPython has interrupt and timer call backs and cooperative multi tasking (uasyncio) to help get good response to time critical events. If you want Wi-Fi or BLE the ESP8266 and ESP32 run MicroPython or C/ASM at th...

STM32F103C8T6 only has 64K flash. That's not enough. The smallest working port for STM32 is L073 at 192K. I have managed to get it down to 149K but I gave up trying to get to 128K.

One of the big advantages of MicroPython is ease of debugging in the field, especially by field technicians who are not professional programmers. Often a full machine is not available during software development and debugging is done at least partly with LEDs, switches, meters, etc. Then the control...

From the data sheet: Multispeed internal RC oscillator (MSI), trimmable by software, able to generate 12 frequencies from 100 kHz to 48 MHz. When a 32.768 kHz clock source is available in the system (LSE), the MSI frequency can be automatically trimmed by hardware to reach better than ±0.25% accurac...

USB needs a 0.25% accurate 48Mhz clock.On the L4 this is normally derived from a PLL multiplier from LSE. LSI is very inaccurate and cannot be used for USB or UART. The MSI is ok for UART at commercial temp, but not for USB. The L4 can derive a clock from USB SOF (1 kHz) but I don't know if MicroPyt...

Rocky Song from NXP has ported MicroPython and OpenMV to the RT1060.

https://github.com/RockySong

I had issues with dfuse demo on another recent MCU and have changed to STMcubeprogrammer on Windows. It seems to support the newer MCUs. You have to follow the instructions to completely remove the dfuse USB driver before installing STMcubeprogrammer. It took a few attempts to get the driver to upda...