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- Sat Jan 25, 2025 12:25 am
- Forum: ESP IoT Solution
- Topic: Unable to get valid IO Expander handle for ESP32-S3 and LCD using TCA9554 IO Expander
- Replies: 1
- Views: 9206
Re: Unable to get valid IO Expander handle for ESP32-S3 and LCD using TCA9554 IO Expander
Setup: Driving LCD (without touchscreen) with an Adafruit Qualia ESP32-S3 board which uses a TCA9554 I/O expander. LCD screen uses ST7701 panel driver. Attached schematics show connection between ESP32-S3, I/O expander and LCD screen. Trying to run the rgb_avoid_tearing example from ESP-IOT-SOLUTIO...