KeyeStudio EASY PLUG RJ11 Capacitive Touch Sensor Module - Digital Touch Input for Arduino Projects The KeyeStudio EASY PLUG RJ11 Capacitive Touch Sensor Module provides a digital touch input for Arduino projects, replacing a mechanical button with a touch-sensitive surface. It can detect human touch and metal contact, and the current listing notes that it may still respond through thin cloth or paper with reduced sensitivity. The module uses the EASY PLUG connector for tidy wiring to compatible control boards. It is useful for touch lamps, interactive panels, smart devices, and user-interface demos, especially when paired with the RGB Full Color LED Module or relay outputs. Capacitive sensing depends on grounding, panel material, moisture, and nearby metal. Test sensitivity after final enclosure assembly before relying on the input. Technical Specifications Parameter Value SKU KY-KS0113 Brand KeyeStudio Product Type EASY PLUG RJ11 capacitive touch sensor Output Digital HIGH/LOW touch state Supply Voltage 3.3V-5V per current listing Connector EASY PLUG RJ11 Sensor Type Digital capacitive touch Detection Human or metal touch Mounting Note Sensitivity decreases through thicker insulating material Applications Touch buttons, lamps, control panels, interactive projects Board Layout & Label Guide Touch Pad - Capacitive sensing surface. RJ11 Port - EASY PLUG connection. Signal Line - Digital touch output. VCC - Power through RJ11 cable. GND - Ground through RJ11 cable. Indicator Area - Many modules show touch state. Panel Note - Thin paper or cloth may still allow sensing. Noise Note - Avoid nearby high-current wires. Application Scenarios 1. Arduino Digital Input Test Read the touch sensor output and print its state. const int sensorPin = 2; void setup() { Serial.begin(115200); pinMode(sensorPin, INPUT); } void loop() { Serial.println(digitalRead(sensorPin)); delay(100); } 2. LED Event Indicator Turn on an LED when the module output is touched. const int sensorPin = 2; const int ledPin = 13; void setup() { pinMode(sensorPin, INPUT); pinMode(ledPin, OUTPUT); } void loop() { digitalWrite(ledPin, digitalRead(sensorPin)); } 3. MicroPython GPIO Monitor Monitor the digital signal from a Pico-style board. from machine import Pin import time sensor = Pin(15, Pin.IN) while True: print(sensor.value()) time.sleep(0.1) Packing List 1 x KeyeStudio EASY PLUG RJ11 Capacitive Touch Sensor Module FAQ Q: What does it detect?A: Human or conductive touch through capacitive sensing. Q: What connector does it use?A: EASY PLUG RJ11. Q: Can it work through paper?A: The listing notes it can work through cloth or paper, with reduced sensitivity. Q: What voltage does it use?A: 3.3V to 5V per current listing. Q: Can it replace a button?A: Yes, for digital input applications. Q: Why does sensitivity change?A: Panel thickness, grounding, and moisture affect capacitive sensing. Q: Can it work with Arduino?A: Yes, through a compatible EASY PLUG control board. Q: What should I test first?A: Touch response in the final enclosure.
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