MicroPython Forum (Archive)

That worked for this problem ! Thanks But another appears related to the memory too. My code suddenly stops in the middle of the process and I have this error with always the same number of bytes : MemoryError: memory allocation failed, allocating 1336 bytes And after I can't do nothing in the conso...

Hello, I have a memory problem with my ESP32, I download a file that is around 1000 lines and want to iterate it line by line. My code is : for line in st.splitlines(): action ... And the error : MemoryError: memory allocation failed, allocating %u bytes I tried gc.collect() before the loop, but it ...

Ok I tried to connect rx to tx and the data is transmitted I can read what I sent, It's a good thing. But when I put the cables of E-Paper in the same pins (I tried to swap them), the same problem is still here. It's strange because when I plug the E-Paper in USB to my pc with a USB to TTL, I am abl...

According to what you said, I tried to change connection pins, here's what my code looks like : uart = UART(1) uart.init(115200, timeout=5000, tx=25, rx=26) uart.write(cmd) The cmd I sent is the update command of the E-Paper display, and the code works (no errors) but nothing happens and don't know ...

Can I use any other pin than 1 and 3 to connect in UART ?
For example what is the difference between UART0, UART1 and UART2 that seems to use different ports.
I tried to use UART1 but the pins I found on the web are GPIO9 and GPIO10 but in the datasheet they are used by the system ..

Hello, I am currently trying to establish a serial connection between a e-paper and a ESP32-WROOM-32U on a ESP32_Devkitc_V4. I connected cables to TX and RX pins on the ESP32 and created the following code : soc = UART(1) soc.init(rate, timeout=5000, tx=1, rx=3) ... soc.write(cmd) #cmd is a string I...