ESP32-WROOM-32UE connected LCD causing a problem.
Posted: Sat Apr 15, 2023 9:38 pm
Hello,
Firstly I wan't to apologies if I'm asking the question in wrong place or I'm breaking some rule - I'm new here.
I'm developing a air monitor and filter control for my 3d printer. Everything was great until I decide to order bigger LCD screec (20x4).
I bought Youmile IIC/I2C/TWI Serial 2004 20 x 4 LCD (connection details: GND-GND; VCC-VCC; SDA–A4; SCL–A5).
This one: https://www.amazon.pl/dp/B099F2KPR4?psc ... ct_details
When I connect LCD than I can't upload image
When I disconnect LCD, upload my image, start monitor, reconnect LCD and restart my ESP32
I can see only this error in the monitor:
I created empty project and disconnected all sensors to test my LCD. Just want to mention that 2-lines LCDs work.
LCD is connected to SDA/SDL pins. I tried with and without pull up resistors.
Could you advise?
Thanks!
Firstly I wan't to apologies if I'm asking the question in wrong place or I'm breaking some rule - I'm new here.
I'm developing a air monitor and filter control for my 3d printer. Everything was great until I decide to order bigger LCD screec (20x4).
I bought Youmile IIC/I2C/TWI Serial 2004 20 x 4 LCD (connection details: GND-GND; VCC-VCC; SDA–A4; SCL–A5).
This one: https://www.amazon.pl/dp/B099F2KPR4?psc ... ct_details
When I connect LCD than I can't upload image
Code: Select all
Stub running...
Changing baud rate to 460800
Changed.
WARNING: Failed to communicate with the flash chip, read/write operations will fail. Try checking the chip connections or removing any other hardware connected to IOs.
Configuring flash size...
Flash will be erased from 0x00001000 to 0x00005fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x00054fff...
Compressed 17408 bytes to 12112...
A fatal error occurred: Packet content transfer stopped (received 8 bytes)
*** [upload] Error 2I can see only this error in the monitor:
Code: Select all
rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
invalid header: 0xffffffff
invalid header: 0xffffffff
LCD is connected to SDA/SDL pins. I tried with and without pull up resistors.
Could you advise?
Thanks!