Search found 250 matches

by shaoziyang
Mon Oct 22, 2018 2:48 pm
Forum: Other Boards
Topic: [STM32H743] How to flash
Replies: 6
Views: 563

Re: [STM32H743] How to flash

You may using "STM32 ST-Link Utility" to flash bin/hex file to Nucleo board.
by shaoziyang
Sat Oct 06, 2018 8:35 am
Forum: Drivers for External Components
Topic: LCD 2X16 I2c on ESP32
Replies: 6
Views: 1184

Re: LCD 2X16 I2c on ESP32

by shaoziyang
Sat Sep 29, 2018 2:04 pm
Forum: micro:bit boards
Topic: AttributeError: 'MicroBitI2C' object has no attribute 'scan'
Replies: 3
Views: 1173

Re: AttributeError: 'MicroBitI2C' object has no attribute 'scan'

You need micropython 1.9.2 for microbit to use i2c.scan(). Mu 1.0 using micropython 1.9.2.
by shaoziyang
Mon Sep 24, 2018 2:15 pm
Forum: Drivers for External Components
Topic: 64x32 led matrix driver
Replies: 4
Views: 965

Re: 64x32 led matrix driver

You may try my 16x16 drive, it is easy to change matrix size.

16 x 16 drive
convert tools
by shaoziyang
Sat Sep 08, 2018 4:37 am
Forum: Other Boards
Topic: PYB Nano V2 mini board
Replies: 12
Views: 1299

Re: PYB Nano V2 mini board

You design looks nice and I hope your enjoying designing and building your own boatrd. I am watching this thread as am really interested in a small form factor STMF4. You design looks nice. The Ardunio guys are doing the same thing. They very much like small form factor boards and the blue pill (ST...
by shaoziyang
Sat Sep 08, 2018 4:29 am
Forum: Other Boards
Topic: PYB Nano V2 mini board
Replies: 12
Views: 1299

Re: PYB Nano V2 mini board

You design looks nice and I hope your enjoying designing and building your own boatrd. I am watching this thread as am really interested in a small form factor STMF4. You design looks nice. The Ardunio guys are doing the same thing. They very much like small form factor boards and the blue pill (ST...
by shaoziyang
Sat Sep 08, 2018 4:19 am
Forum: Other Boards
Topic: PYB Nano V2 mini board
Replies: 12
Views: 1299

Re: PYB Nano V2 mini board

loboris wrote:
Fri Sep 07, 2018 4:02 pm
Thanks, that is more interesting.
PYB Nano (STM32F411) has no SDIO, so I have no design a SD connector, but you can using SPI to connect a SD.
by shaoziyang
Fri Sep 07, 2018 3:32 pm
Forum: Other Boards
Topic: PYB Nano V2 mini board
Replies: 12
Views: 1299

Re: PYB Nano V2 mini board

PYB Nano V2 is a pocket micropython board, with STM32F411 microcontroller and 8MByte Flash. It's nice to see you've made your own board. It would be far more interesting if you give some more information, like schematics, bottom layout, does it have sdcard connector, ... PYB Nano V2 is upgrade from...
by shaoziyang
Fri Sep 07, 2018 12:29 pm
Forum: MicroPython pyboard
Topic: RTC refuses to set
Replies: 2
Views: 224

Re: RTC refuses to set

Sometimes RTC may not initial correctly after power on, then RTC not running. You may try clock.init() to re-initial RTC.
by shaoziyang
Fri Sep 07, 2018 10:53 am
Forum: Other Boards
Topic: PYB Nano V2 mini board
Replies: 12
Views: 1299

Re: PYB Nano V2 mini board

pythoncoder wrote:
Fri Sep 07, 2018 9:17 am
But with fewer I/O pins...
And lower cost. :)