Hello, have you tried downloading this .m5f code and uploading it to UIFlow to try to get it to work: https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/UIFlow
It's the complete example for the capacitive touch, you can find the full documentation here: https://docs.m5stack.com/#/en/unit/makey?id=example