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Topic: What is this nasty clone? Running at quarter speed! (Read 5320 times) previous topic - next topic

expat-mike

I got caught with this piece of junk thinking it was UNO compatible. The xtal is marked at 16 mhz however as others have said the Blink sketch runs quarter speed. Alo the lcd key pad shield doesn't work so I'm glad it only cost around $3. I may investigate or put it down to experience.

cyberponk

I was doomed with some of these clones... the ADC is 12bit indeed, and you can revert to 10bit with calling

analogReadResolution(10)

from setup. But the ACD is very noisy and returns very imprecise values.


Has anyone here managed to get i2c or SPI to work with this arduino ? With i2c it just hangs during setup...

mausi_mick

#17
Jan 18, 2020, 04:49 am Last Edit: Jan 18, 2020, 05:06 am by mausi_mick
I have some experience with the LGT8F328P board from WEMOS:

https://www.ebay.de/itm/1pcs-Wemos-TTGO-XI-8F328P-U-Board-Motherboard-For-Arduino-Nano-V3-0/183488826829?hash=item2ab8c94dcd:g:qbEAAOSw9PFbxZ-c

The LED is on Pin 12 (MISO) and the board is bigger than the original NANO V3 and has other layout (Pins,...).

 I had made a DDS-function generator with an 1602 display and rotary encoders. Because of the 32 MHz the sine is going up to more than 20 kHz (Atmega328P about 10 kHz).

I have tested an ILI9341 SPI grahic display (240x320) . It was  only going with ucglib:

https://github.com/olikraus/ucglib

not with adafruit gfx ...

ILI9341 is running also with UFTLIB (SW-SPI), but slow.

I have tested also the Nano LGTF328P clone ,




but with no positive results.

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