KeyeStudio KS0373 EASY Plug Slide Potentiometer Module The KeyeStudio KS0373 EASY Plug Slide Potentiometer Module provides a linear analog control for Arduino-style projects. It is useful for LED dimming, servo angle control, menu value adjustment, motor speed setting, and physical interface prototypes. The module uses an RJ11 EASY Plug connector for quick connection to compatible KeyeStudio control boards, while solder pads allow custom wiring to other microcontrollers. It works well with an OpenELAB Sensor Shield V5 when you need cleaner analog input wiring. Because the slider position is visible and tactile, it is a good teaching module for ADC readings, voltage dividers, and mapped control values. It also makes prototype interfaces feel more natural than a tiny trim potentiometer. Technical Specifications Parameter Value Manufacturer KeyeStudio Model KS0373 Sensor type Slide potentiometer module Interface EASY Plug RJ11 analog interface Operating voltage DC 3.3 V to 5 V Resistance 5 kOhm Output Analog voltage signal Port type Analog quantity Dimensions 28 x 76.7 x 31.3 mm Weight Approx. 17 g Development support Arduino-compatible ADC inputs Board Layout & Label Guide Slider lever: Move this control to change the analog output voltage. RJ11 port: Connects to the EASY Plug analog port. VCC pad: Provides the potentiometer reference voltage. GND pad: Common ground for stable ADC readings. Signal pad: Analog output to the controller ADC pin. Mounting area: Secure the board so the slider is not mechanically stressed. Cable note: Keep analog wiring short if readings appear noisy. Application Scenarios 1. Read Analog Input Read the slide potentiometer on an Arduino analog pin and print a stable serial value for debugging. const int SENSOR_PIN = A0; void setup() { Serial.begin(115200); } void loop() { long total = 0; for (int i = 0; i < 8; i++) { total += analogRead(SENSOR_PIN); delay(2); } int raw = total / 8; Serial.print("slider="); Serial.println(raw); delay(100); } 2. Control LED Brightness Map the sensor reading to PWM output so the module can directly control LED brightness in an interactive prototype. const int SENSOR_PIN = A0; const int LED_PIN = 9; void setup() { pinMode(LED_PIN, OUTPUT); } void loop() { int raw = analogRead(SENSOR_PIN); int pwm = map(raw, 0, 1023, 0, 255); analogWrite(LED_PIN, pwm); delay(20); } 3. Threshold Trigger Convert the analog signal into a practical on/off event for alarms, mode switching, or simple automation. const int SENSOR_PIN = A0; const int OUTPUT_PIN = 8; const int THRESHOLD = 550; void setup() { pinMode(OUTPUT_PIN, OUTPUT); } void loop() { int raw = analogRead(SENSOR_PIN); digitalWrite(OUTPUT_PIN, raw > THRESHOLD ? HIGH : LOW); delay(50); } Packing List 1 x KeyeStudio EASY Plug Slide Potentiometer Module FAQ Q: Does it require an EASY Plug board?A: No. It is designed for EASY Plug, but the pads can be wired to other controllers. Q: Is the output analog or digital?A: It outputs an analog voltage. Q: Can it work with ESP32?A: Yes, as long as the signal voltage stays within the ESP32 ADC limit. Q: What can it control?A: Brightness, speed, servo angle, thresholds, menu values, and other mapped variables. Q: Why does the value jitter?A: ADC noise, long wires, or loose connectors can cause small changes; average samples in software. Q: Can it control a motor directly?A: No. Use it as an input to a controller, then drive a motor driver. Q: Is it a linear slider?A: Yes, it is intended to provide a linear position-style input. Q: Can I mount it on a panel?A: Yes, if the slider has clearance and the board is supported without bending.
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