Ken Van Hoeylandt
1.0 KiB
1.0 KiB
CST816T touch controller
A driver for the CST816T I2C capacitive touch controller by Hynitron.
Implemented directly against the register. (no esp_lcd_touch dependency)
- Manufacturer datasheet: https://github.com/koendv/cst816t/blob/master/extras/DS-CST816T%E6%95%B0%E6%8D%AE%E6%89%8B%E5%86%8CV2.2.pdf
- Original/reference code: https://github.com/koendv/cst816t (Arduino driver,
src/cst816t.cpp/src/cst816t.h), licensed under The Unlicense
Single-touch only: the datasheet advertises "genuine two-point" support, but neither of the sources above documents a second touch-point register set, so only one point is read.
enter_sleep/exit_sleep are unimplemented (nullptr in the PointerApi, per its "null if not supported" contract).
The reference driver defines REG_SLEEP_MODE (0xE5) but never writes it, and the datasheet says waking from sleep needs
a hardware reset pulse anyway, not a register write.
License: Apache v2.0