Search found 30 matches

by wr300000
Mon Jul 13, 2020 2:30 am
Forum: ESP8266 boards
Topic: Memory issue with Blynk
Replies: 3
Views: 680

Re: Memory issue with Blynk

Hello Jimmo,
May I have source code of blynklib_mp.py that used for producing blynlib.mpy for further education ?
thanks
by wr300000
Fri Mar 13, 2020 6:41 am
Forum: Drivers for External Components
Topic: Receive and transmit IR remote codes
Replies: 10
Views: 2392

Re: Receive and transmit IR remote codes

Hi Peter, I've got TSOP4838 38kHze receiver on my breadboard wit ESP32-PSRAM including copy ir_rx directory application already to test your ir_rx driver but unfortunately, upip could not find this package. see below message. >>> upip.install('pystone_lowmem') Installing to: /lib/ Installing pystone...
by wr300000
Thu Mar 05, 2020 6:39 am
Forum: Programs, Libraries and Tools
Topic: rshell - Remote Shell
Replies: 74
Views: 40218

Re: rshell - Remote Shell

Normally I use screen to enter REPL. I recently use rshell as IDE rshell -p /dev/ttyUSB0 --editor nano --buffer-size=30 /home/wr300000> repl <---- get in repl and release machine.reset() to rerun my main.py Below is result from my main.py showing normal /sd directory and other configured variables. ...
by wr300000
Wed Feb 19, 2020 1:39 pm
Forum: ESP8266 boards
Topic: garbage value apon pressing reset switch on esp8266
Replies: 8
Views: 937

Re: garbage value apon pressing reset switch on esp8266

Roberthh, yes you are right. I use bash's alias command as one character represents typing tails for erasing the chip. This time I can interrupt them within an assigned sec period. Thank you again...
by wr300000
Wed Feb 19, 2020 9:28 am
Forum: ESP8266 boards
Topic: garbage value apon pressing reset switch on esp8266
Replies: 8
Views: 937

Re: garbage value apon pressing reset switch on esp8266

@Roberthh
Because of my prior code is not successful and keep looping by sending esp O/S debug message every second to interfere the communication on UART port which making fail to connect to board anymore..
by wr300000
Wed Feb 19, 2020 8:58 am
Forum: ESP8266 boards
Topic: garbage value apon pressing reset switch on esp8266
Replies: 8
Views: 937

Re: garbage value apon pressing reset switch on esp8266

Hi Jimmo, My case is quite different, I built 8266 firmware and ran correctly. Everything is fine until I test some wifi connectivity but I forgot to disable esp O/S debug in boot.py. >>>import esp >>>esp.osdebug(None) This board always reply readable error response message from my incomplete previo...
by wr300000
Sat Feb 15, 2020 3:19 pm
Forum: Programs, Libraries and Tools
Topic: Asyncio design method
Replies: 7
Views: 1078

Re: Asyncio design method

@kevinkk525
I've just build and flash the latest uPython firmware on my ESP32 board but I still can not see uasyncio.py to import . Could you explain more on how can I get asyncio.py modules from ?
appreciate in advance,
by wr300000
Tue Feb 11, 2020 9:28 am
Forum: Programs, Libraries and Tools
Topic: Asyncio design method
Replies: 7
Views: 1078

Re: Asyncio design method

@kevinkk525, I normally build/use micropython on esp8266 and esp32 only and I currently head up for learning on asyncio and mqtt modules to implement on mostly concern with home automation which prefer smallest configuration per ESP's chip. I've got 2x esp8266 8MB FLASH, esp32 WROOM-32 4MB Flash and...
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: 2320

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: 8806

Re: Problems building micropython-1.9.2 from source

Hi Roberthh,
Thanks, you are great....