MicroPython Forum (Archive)

Tesla_X

Thanks for the tip. Can you give a small example of the implementation in the code?

Tesla_X

Hello. Who can tell you where to get the library for SH1106/SSD1306 OLED displays (I2C interface) with Russian letters (Cyrillic) for ESP32/8266 microcontrollers? Or how can existing libraries be modified to add the necessary functionality?

Tesla_X

According to the datasheet, switching code pages is just single bit change at initialization time. The initialization routines (called __init__) all have something like this near the end of the routine: cmd = self.LCD_FUNCTION if num_lines > 1: cmd |= self.LCD_FUNCTION_2LINES self.hal_write_command...

Tesla_X

The hex data that you printed is the UTF-8 encoding of the string. The Cyrillic alphabet can be seen on this page: https://en.wikipedia.org/wiki/ISO/IEC_8859-5 If you iterate through each of the characters of the string character by character and subtract 864 from the unicode value, you'll see some...

Tesla_X

Code: Select all

>>> print(binascii.hexlify("Test string"))
b'5465737420737472696e67'
>>> print(binascii.hexlify("/n"))
b'2f6e'
>>> print(binascii.hexlify("Русские символы"))
b'd0a0d183d181d181d0bad0b8d0b520d181d0b8d0bcd0b2d0bed0bbd18b'
>>>

Tesla_X

Hello. A suitable bipolar NPN or N-channel field effect transistor can be used. There are a lot of activation schemes on the Internet, look in the key mode. You just need to find the source of the control signal. Option: use the charge module + lithium battery, use the DEEP_SLEEP mode and exit it by...

Tesla_X

Hello. I use the MT-20S4M_en LCD display. I attached the documentation above. In the first photo in the attachment, part of the code for displaying lines on the display. The second photo shows the output result. As you can see from the photo, the characters in the third and fourth lines do not corre...

Tesla_X

I checked on ESP 32 - it works. Tested the library on the MT-20S4M_en LCD display. The problem is that it does not display Russian letters. Judging by the symbol table (attached), there is an offset. How can I fix it?
https://github.com/dhylands/python_lcd/ ... en.LCD.pdf

Tesla_X

Hello. Tell me the ESP32 library for a 4*4 matrix keyboard?

Tesla_X

Hello. Who can tell you where to get the ESP32 library for displays 1602, 2004 (I2C interface) with Russian letters (Cyrillic). By the link "https://github.com/dhylands/python_lcd " there is no library for ESP32 I2C, but there is for ESP8266. Will it work on ESP32?

MicroPython Forum (Archive)

Search found 12 matches

Re: Library for OLED displays SH1106/SSD1306 (I2C) with Russian letters (Cyrillic) for ESP32/8266

Library for OLED displays SH1106/SSD1306 (I2C) with Russian letters (Cyrillic) for ESP32/8266

Re: ESP32 library for displays 1602, 2004, MT-20S4M (I2C interface) with Russian letters (Cyrillic)

Re: ESP32 library for displays 1602, 2004, MT-20S4M (I2C interface) with Russian letters (Cyrillic)

Re: ESP32 library for displays 1602, 2004, MT-20S4M (I2C interface) with Russian letters (Cyrillic)

Re: Connecting SIM7000 module to ESP32 - how to switch power on and off?

Re: ESP32 library for displays 1602, 2004 (I2C interface) with Russian letters (Cyrillic)

Re: ESP32 library for displays 1602, 2004 (I2C interface) with Russian letters (Cyrillic)

ESP32 library for matrix keyboard 4*4, connection diagram.

ESP32 library for displays 1602, 2004, MT-20S4M (I2C interface) with Russian letters (Cyrillic)