Search found 409 matches

by mcauser
Tue Oct 29, 2019 1:44 am
Forum: Other Boards
Topic: Split Other Boards into port specific forums?
Replies: 2
Views: 194

Split Other Boards into port specific forums?

Hi Forum Admins,

Is it time to split Other Boards forum into a few port specific forums?
STM32, NRF, PIC, SAMD etc?
So it more closely matches ports in the MicroPython repo?
by mcauser
Tue Oct 29, 2019 12:19 am
Forum: Other Boards
Topic: WeAct STM32F411CEU6 black pill
Replies: 3
Views: 163

Re: WeAct STM32F411CEU6 black pill

The unpopulated U3 pads on the bottom is for a W25Q32JVSSIQ 32M-bit SPI flash, according to the datasheet
by mcauser
Tue Oct 29, 2019 12:14 am
Forum: Other Boards
Topic: WeAct STM32F411CEU6 black pill
Replies: 3
Views: 163

Re: WeAct STM32F411CEU6 black pill

YXZhu has already made board definitions for both the F401 and F411 boards: https://github.com/YXZhu/micropython/tree/master/ports/stm32/boards/WeAct_F401CC https://github.com/YXZhu/micropython/tree/master/ports/stm32/boards/WeAct_F411CE STM32F401CCU6 and STM32F411CEU6 download link: https://pan.bai...
by mcauser
Mon Oct 28, 2019 4:03 pm
Forum: Other Boards
Topic: WeAct STM32F411CEU6 black pill
Replies: 3
Views: 163

WeAct STM32F411CEU6 black pill

Anyone using this new $7 WeAct STM32F411CEU6 board? https://www.aliexpress.com/item/4000084631884.html Comes in 2 variants: STM32F401CCU6 core board 64KB RAM 256KB ROM STM32F411CEU6 core board 128KB RAM 512KB ROM Looks like an upgrade of the old "blue pill" with a more powerful CPU and USB-C https:/...
by mcauser
Tue Oct 22, 2019 11:41 pm
Forum: Hardware Projects
Topic: MicroPython driver for Motor Board "MD49".
Replies: 1
Views: 104

Re: MicroPython driver for Motor Board "MD49".

Your link 404s. Clicking on it goes to "%5Bb%5Dhttps%3A//github.com/jczic/motor ... 49%5B/b%5D"
Try removing the "[ b ] [ /b ]".
by mcauser
Wed Oct 16, 2019 6:35 am
Forum: Other Boards
Topic: [STM32F407xx] - NRF24L01
Replies: 2
Views: 110

Re: [STM32F407xx] - NRF24L01

It's coming up as 'pyboard' as that's the default for the STM32 port. Pinout: https://github.com/mcauser/BLACK_F407VE#nrf24l01-jp2 +-------------------------------------+ | USB JTAG MicroSD | | | | 2 4 6 8 | | 1 3 5 7 | | NRF | * 1 GND * 2 3V3 * 3 PB6 NRF_CE * 4 PB7 NRF_CS * 5 PB3 SPI1_SCK * 6 PB5 S...
by mcauser
Wed Oct 16, 2019 5:59 am
Forum: Other Boards
Topic: [STM32F407xx] - external power/battery
Replies: 2
Views: 123

Re: [STM32F407xx] - external power/battery

The Q1 or B1 in the schematics is the RTC battery (bottom right CR1220 lithium cell on the board). It's designed to be a backup 3V power source to maintain the RTC datetime while you unplug / plug the primary power source. Schematics are available on Github. See the links in the readme footer. https...
by mcauser
Thu Oct 10, 2019 2:22 am
Forum: Other Boards
Topic: Update pyb.Switch() to support multiple buttons?
Replies: 1
Views: 96

Update pyb.Switch() to support multiple buttons?

On boards such as the MCUDev Black STM32F407VET6 , there are 2x user buttons. In the board definition I've defined KEY0 as the main switch. Is it worth updating pyb.Switch() to support multiple switches? eg. pyb.Switch() == KEY0 pyb.Switch(1) == KEY0 pyb.Switch(2) == KEY1 Or is pyb.Switch deprecated...
by mcauser
Wed Oct 09, 2019 1:28 am
Forum: ESP8266 boards
Topic: ESP8266EX with 16MB
Replies: 2
Views: 168

Re: ESP8266EX with 16MB

Yeah, it's been working for a while now. See: https://github.com/micropython/micropython/issues/2335 You need to write esp_init_data_default.bin at offset 0xffc000, then write your firmware at offset 0x00000. This is how I got it working on my Wemos D1 Mini Pro (the older blue one): esptool.py --por...
by mcauser
Wed Sep 18, 2019 10:37 am
Forum: Other Boards
Topic: VCC-GND STM32F407VET6 dev board
Replies: 25
Views: 17681

Re: VCC-GND STM32F407VET6 dev board

You could try requesting it from the seller on AliExpress. Alternatively, try to find the product on Taobao.com. Sometimes they have pan.baidu.com links to zips loaded with useful into, schematics, datasheets, etc, however sometimes only in Chinese, so you need to wash through a Google Translate. Th...