10000 Waveshare ESP32-S3-Touch-LCD-5 Unable to use I2C · Issue #191 · esp-arduino-libs/ESP32_Display_Panel · GitHub
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Waveshare ESP32-S3-Touch-LCD-5 Unable to use I2C #191
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Waveshare ESP32-S3-Touch-LCD-5 Unable to use I2C#191
@Kanzll

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@Kanzll
Kanzll
opened on Apr 25, 2025

Hello,

I want to use this i2c module, with Waveshare ESP32-S3-Touch-LCD-5-B, but I get the following errors :

E (1861) i2c: i2c driver install error
[  2670][E][esp32-hal-i2c.c:126] i2cInit(): i2c_driver_install failed
[  2680][E][Wire.cpp:539] write(): NULL TX buffer pointer
[  2685][E][Wire.cpp:449] endTransmission(): NULL TX buffer pointer
[begin(): 70 ] READ BYTEERROR!

I don't know if I must disable something before using external i2c device, but I don't know how ?

Thank you for your help

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