Search found 843 matches

by Roberthh
Fri Feb 09, 2018 7:38 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

I'm using two LOLIN32 pro devices. None of them overheats, but one works well at 80MHz, the other works realible only at 40MHz. The only difference I can see is, that on the worse one the wrover module does not flush well to the soldering pads. I have also a LOLIN32 with the WROOM modules, which mad...
by Roberthh
Thu Feb 08, 2018 6:22 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

GPIO34-39 of a ESP32 device can be used only as input.
by Roberthh
Mon Feb 05, 2018 10:39 am
Forum: Programs, Libraries and Tools
Topic: State of micropython-lib?
Replies: 25
Views: 8101

Re: State of micropython-lib?

I was kind of disappointed by Paul's indication of an own fork. I do not want to deal with many forks with more or less subtle differences. I would prefer if Paul and Damien could get together again on a single Micorpython.org and micropython-lib version.
by Roberthh
Sat Feb 03, 2018 8:41 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

Depends. I had occurrences like that with one of my boards, an Wemos ESP32 Pro with a WROVER module, SPI and RAM speed set to 80 MHz. At 40 MHz is was stable, and another unit is also stable at 80 MHz.
by Roberthh
Wed Jan 31, 2018 9:10 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

if IO0 is low and IO2 high, and you'll then puseh reset, the bootloader should start. You can verify that in the terminal. You should see some kind of message indicating that. A different topic: whichb chip is in the USB/Serial adapter. I have devices with the CH340G, which are not reliable above 23...
by Roberthh
Mon Jan 29, 2018 5:55 pm
Forum: General Discussion and Questions
Topic: lcd160cr.py Recipe for target failed
Replies: 1
Views: 68

Re: lcd160cr.py Recipe for target failed

Are you sure you have an Pyboard Version 0.3?
And no, you do not have to call mpy-cross manually. That's done by the Makefile. All sources to be included in flash have to be in the modules subdirectory of STM32
by Roberthh
Mon Jan 29, 2018 6:29 am
Forum: ESP8266 boards
Topic: Wemos D1 Mini + AM2320
Replies: 18
Views: 6201

Re: Wemos D1 Mini + AM2320

Sometimes a gc.collect() call in repeated actions helps. In your case, try to call gc.collect() befofe the i2C communication.
The esp8266 has a built-in module for the DHTxx modules, so it should be easy to use.
by Roberthh
Sun Jan 28, 2018 9:43 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

RMT is used by the get_pulses() method of the pycom branch to capture input pulses.
by Roberthh
Fri Jan 26, 2018 4:16 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 404
Views: 40024

Re: MicroPython on ESP32 with SPIRAM support

A driver is here: https://github.com/robert-hh/SH1106 or other made by @deshipu. They are pure python code, so you have just to store them on the ESP32 and use. No need to make a C-Language driver.
by Roberthh
Fri Jan 26, 2018 2:12 pm
Forum: ESP8266 boards
Topic: Wemos D1 Mini + AM2320
Replies: 18
Views: 6201

Re: Wemos D1 Mini + AM2320

Is there a chance the board's Pins are not properly connected that way?
The chance is more to the opposite. For almost sure you have connection problems, if you
do not solder the headers to the Wemos board.