ストレンゲージx4つ
ADCで4つ読んで最初にキャリブレーションしつつ差をシリアル送信
// read strain gauge int led_pin = 13; int ads[4]; boolean led_stat = true; void setup(){ pinMode(led_pin, OUTPUT); Serial.begin(9600); digitalWrite(led_pin, led_stat); for(int i = 0; i < 4; i++){ int ad = analogRead(i); ads[i] = ad; // calibrate } } void loop(){ for(int i = 0; i < 4; i++){ int ad = analogRead(i); Serial.print(ad-ads[i]); if(i < 3) Serial.print(","); } Serial.println(""); led_stat = !led_stat; digitalWrite(led_pin, led_stat); }