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Xinyuan-LilyGO / T7-S3

ESP32-S3 Development Board
MIT License
24 stars 9 forks source link

Touch Pins #5

Open disruptivepatternmaterial opened 1 year ago

disruptivepatternmaterial commented 1 year ago

Has anyone been able to get the touch pins to work? I have tried many ways including just reading all of them and touching them one at a time. None of them register. On my other esp32s3 modules they "just work." So I think something is broken with this board. I'd love to be wrong and find out the secret to using them here.

maxdd commented 1 year ago

IO2, which is TOUCH2, is used to sense the battery so that cannot be used. I'm not an expert with TOUCH but if you say you should touch them individually and expect them to register and they dont, maybe it's a PU/PD issue?

jalmince commented 1 year ago

for me it works !

touch GPIO04 and touchRead(4) increases about 10 fold

Touch: 27771 Touch: 28479 Touch: 29602 Touch: 216505 (touched) Touch: 321552 (touched) Touch: 360484 (touched) Touch: 320490 (touched) Touch: 23546 Touch: 23466 Touch: 23474

#include <Arduino.h>
#define BAT_ADC        2
#define LED_PIN        17

void setup() {
  Serial.begin(115200);
  delay(1000);  
  Serial.println("ESP32 Touch Test");
}

void loop() {
  Serial.print("Touch: ");
  Serial.println(touchRead(4));  // get touch value on GPIO 4
  delay(1000);
}