ESP32-S3 touch sensor?

ESPHome
2

Hi Brian!

I just upgraded a previsiously-installed traditional ESP32 to an ESP32-S3-16/8.

In my case, the values initially were huge (significantly larger than before) and didn’t appear to change at all. The trick that worked for me was to adjust the measurement_duration value down from the default 4ms to 0.25ms. Once I did that, the values were still pretty large numbers, but changed quite reliably.

esp32_touch:
  setup_mode: false
  measurement_duration: 0.25ms

binary_sensor:
  - platform: esp32_touch
    name: "TouchPad1"
    pin: 4
    threshold: 1100000
  - platform: esp32_touch
    name: "TouchPad2"
    pin: 5
    threshold: 1300000

I’ve got ~1m lead wires running to from the ESP32-S3 to the touchpads. For me, TouchPad1 sits idle at ~ 573,000 and goes up to ~1675000 when touched. TouchPad2 sits idle at ~677000 and goes up to ~1530000 when touched.

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