#define BITS 12
#define LED_BUILTIN1 2
#define LED_BUILTIN2 4
void setup() {
  Serial.begin(115200);
  pinMode(LED_BUILTIN1, OUTPUT);
  pinMode(LED_BUILTIN2, OUTPUT);
  analogSetAttenuation(ADC_11db);
  analogSetWidth(BITS);
  ledcSetup(0, 5000, BITS);
  ledcSetup(1, 5000, BITS);
  ledcAttachPin(LED_BUILTIN1, 0);
  ledcAttachPin(LED_BUILTIN2, 1);
  }

void loop() {
  uint16_t val = analogRead(32);
  Serial.printf("val= %u\n", val);
  ledcWrite(0, val);
  ledcWrite(1, 4095-val);
  delay(15);
}