Search found 22 matches

by wr300000
Wed Sep 25, 2019 1:32 pm
Forum: MicroPython pyboard
Topic: Control DC and Stepper Motors With L298N Dual Motor Controller Modules
Replies: 5
Views: 1114

Re: Control DC and Stepper Motors With L298N Dual Motor Controller Modules

I plan to make my either ESP8266 or ESP32 module to control bipolar stepper motor thru L298N driver board. I've got an idea to send out 4 binary bits thru 4 ESP GPIO pins directly to synchronize both coil sets inside stepper motor. My question is how to I bind 4 bit together within a half byte of uP...
by wr300000
Mon Sep 16, 2019 2:39 am
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

Hi Roberthh,
Thanks, you are great....
by wr300000
Sun Sep 15, 2019 4:50 pm
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

hi Roberthh, After send make it then those error disappeared, could get 3 bin files and then make deploy to flash it. It seems to be fine as below response (uPython) wr300000@E6430:~/micropython/ports/esp32$ make deploy Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosit...
by wr300000
Sun Sep 15, 2019 3:37 pm
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

Hi Roberthh, my GNUjmakefile contents is ESPIDF = $(HOME)/esp-idf BOARD = GENERIC #PORT = /dev/ttyUSB0 #FLASH_MODE = qio #FLASH_SIZE = 4MB #CROSS_COMPILE = xtensa-esp32-elf- ESPTOOL=esptool.py MPY_CROSS_FLAGS = -march=xtensa include Makefile BTW, Is below is normal ? it seems as I've got non support...
by wr300000
Mon Sep 02, 2019 2:34 pm
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

Hi Roberthh, Thank you for your good suggestion again. It works well with my esp8266 both 4M and 16M flash sizes. I'm gonna play with my other esp32 and esp32 with PSRAM boards which I guess that I can just release make command on particular sub directory. I can not see separated directories so how ...
by wr300000
Sat Aug 10, 2019 3:17 pm
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

Hi Roberthh,
Thank you again for your suggestion, it's working I built, flashed and run it smoothly. My next trial is add my own modules in further firmware build. I left Windows for awhile then my host computer is native ubuntu 18.04. How can I pre-compile my module scripts to .mpy ?
best regards,
by wr300000
Tue Jul 02, 2019 1:26 pm
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

Hi Robert, Yes,I've read thru on your provided link which it's same as instruction list that I did. Anyway once I tried your provided link it's responded that all tools/directory has been done then nothing is recreated. I could go to those instruction until I stuck at $ make -C mpy-cross which it re...
by wr300000
Tue Jul 02, 2019 4:25 am
Forum: micro:bit boards
Topic: Problems building micropython-1.9.2 from source
Replies: 17
Views: 6498

Re: Problems building micropython-1.9.2 from source

I tried to build first 8266 firmware as first time following http://www.microdev.it/wp/en/2018/06/25/micropython-micropython-compiling-for-esp8266/ web on my ubutu 18.04.2 desktop 64bit. Most instructions were fine until stuck at make final firmware_combined.bin file as below list. wr30000@E6430:~/M...
by wr300000
Thu Dec 20, 2018 9:44 am
Forum: ESP32 boards
Topic: Documentation for ESP32 Port
Replies: 13
Views: 2237

Re: Documentation for ESP32 Port

Thank, mattyt...I can move on now..
thank again,
by wr300000
Thu Dec 20, 2018 7:54 am
Forum: ESP32 boards
Topic: Documentation for ESP32 Port
Replies: 13
Views: 2237

Re: Documentation for ESP32 Port

Is there any kind ETA for using ADC function on ESP32? I'm using both with PSRAM and w/o PSRAM boards. Still can not be initialized ADC pin 35. (using pin 35 to avoid conflict of Wifi connection and hall sensor and also Lolin D32 pro V2 had wired pin 35 on battery voltage measure internally) MicroPy...