ตัวต้านทานปรับค่าได้แบบหมุนได้รอบ rotary encoder coding switch EC11 audio digital potentiometer with switch 20MM

product description :

EC11I encoder also known as chip encoders, switch encoders, rotary encoders, car encoders. EC11I encoder has 20 pulse 20 positioning points, packaging for 250pcs / box, adjust the shaft half handle / thread handle and other types of shaft length range of 20mm. Do not send screws
   EC11I series encoders are mainly used in automotive electronics, multimedia audio, instrumentation, household appliances, smart home, computer peripherals, medical equipment and other fields. Please note that the encoder to avoid storage in the hot and humid and corrosive place, unpacked after use of the remaining products in the moisture-proof anti-virus environment.
Operating temperature range: -30 ℃ to + 80 ℃
Storage temperature range: -40 ℃ to +85 ℃
Rated voltage: DC 5V
Full rotation angle: 360 degrees (no stop point)
Rotational life: 30000 + 200 Cycles
Contact resistance: ≤ 100mΩ
Insulation resistance: 100MΩ or more
Oscillation: ≤ 10mS pressure
Life: 20,000 ± 200 times (0.5 stroke)

          15,000 ± 200 times (1.5 stroke)

การต่อวงจรเพื่อใช้งาน




ตัวอย่าง code

 /* Read Quadrature Encoder
Connect Encoder to Pins encoder0PinA, encoder0PinB, and +5V.

Sketch by max wolf / www.meso.net
v. 0.1 - very basic functions - mw 20061220

*/

int val;
int encoder0PinA = 3;
int encoder0PinB = 4;
int encoder0Pos = 0;
int encoder0PinALast = LOW;
int n = LOW;

void setup() {
pinMode (encoder0PinA, INPUT);
pinMode (encoder0PinB, INPUT);
Serial.begin (9600);
}

void loop() {
n = digitalRead(encoder0PinA);
if ((encoder0PinALast == LOW) && (n == HIGH)) {
if (digitalRead(encoder0PinB) == LOW) {
encoder0Pos--;
} else {
encoder0Pos++;
}
Serial.print (encoder0Pos);
Serial.print ("/");
}
encoder0PinALast = n;
}