MicroPython Forum (Archive)

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

Do you have a bunch of fixed I2C address devices, or exceeded your address select pin combinations? This little CJMCU I2C multiplexer module lets you spread the devices over 8 I2C channels and toggle between them. https://github.com/mcauser/micropython-tca9548a https://raw.githubusercontent.com/mcau...

Deshipu's bitbucket is missing heaps of repositories, now that Atlassian has dropped mercurial support.
https://bitbucket.org/blog/sunsetting-m ... -bitbucket

Hi @deshipu, I cloned heaps of your repos, so if you've lost anything, I may have a copy that I can zip and send back.

Nice work! On my GY-49, I was unable to read 2 bytes starting from the lux high byte. Mine was not auto moving to the next register (lux low byte). When I readfrom_mem() multiple times on any register, it would just give me the same value repeated again and again. I couldn't just read the high byte ...