MicroPython Forum

If you are using one of these modules, it has the resistors on board.
The A0 and D0 are analog and digital outputs. You can use one or the other, depending on your needs.
The blue potentiometer is for tweaking the D0 sensitivity - where on the analog scale it triggers.

The TM1637 driver is just for common anode displays. MAX7219 can be used to drive both common cathode (normal) and common anode (reverse). Here's how you can wire it in either direction . If you just want more IOs, have a look into using an IO expander: MCP23008, MCP23017, PCF8574, PCF8575 Other LED...

You can switch off USB mass storage in boot.py See: http://docs.micropython.org/en/latest/pyboard/tutorial/usb_mouse.html I think littlefs also doesn’t work with USB mass storage, only fat, so you could try reformatting it. Anyone else able to confirm this? ESP ports don’t have USB mass storage supp...

Raised issue on github: https://github.com/micropython/micropython/issues/6681

Found two few issues with HW I2C on the nRF52832. 1) Constructing a new I2C instance does not deinit the previous peripheral. 2) A soft reboot does not deinit the previous HW I2C. Running latest MicroPython on the Ebyte E73-TBB dev board (E73-2G4M04S1B module) MicroPython v1.13-221-gc8b055717 on 202...

EByte E73-TBB https://i.imgur.com/C4jyvFJ.jpeg Was pretty easy to flash MicroPython to it! EByte E73-TBB: https://www.aliexpress.com/item/4000516424563.html J-Link clone: https://www.aliexpress.com/item/4001335080402.html Install command line tools (on macOS): https://github.com/ARMmbed/homebrew-fo...

@wasp09 the board shown in that link above is a "DevEBox" from "MCUDev" in China. They normally sell them on mcudev.taobao.com, however some other shops on AliExpress are reselling them. If you look close in the top right corner on the back of the board, it says "mcudev.taobao.com". The same devs th...

Roberthh is spot on. That's a lot of IOs! What are you building? You can only have 8x MCP23017 chips on the same I2C bus, unless you use something like the TCA9548A, which give you another 7x I2C busses - well, more like channels on the bus. https://github.com/mcauser/micropython-tca9548a 8x I2C bus...

If you're interested in using the EByte E73-TBB, have a look at these three: https://medium.com/@ly.lee/bluetooth-mesh-with-nrf52-and-apache-mynewt-44823407c471 https://medium.com/@ly.lee/coding-nrf52-with-rust-and-apache-mynewt-on-visual-studio-code-9521bcba6004 https://ssihla.wordpress.com/2019/07...

MicroPython library for the HZ-1050 125 KHz RFID Reader:
https://github.com/mcauser/micropython-hz1050