KY-036 digital touch sensor

Check the module’s supply and output voltage against the controller’s input limits before connecting it. A 5V supply does not make the signal safe for a 3.3V GPIO or ADC; use suitable level/voltage conversion. Analogue signals require an ADC, which a standard Raspberry Pi computer does not include.

Detect touch from people or animals easily with this touch sensor. Its built-in comparator helps you get started immediately!

Our bodies naturally accumulate electrical charge—sometimes enough to give someone a small static shock. This sensor uses the body's electrical influence to detect touch. A transistor at its tip has an exposed base connection. Touching it supplies a small signal that switches the transistor and activates the sensor circuit.

The touch sensor detects the body's electrical influence through an exposed transistor-base connection. Touching this connection activates the transistor and sensor circuit.

Connect other metal surfaces directly to the base connection to create touch-sensitive door handles or other metallic parts.

• An analogue output lets the sensor be read directly by a microcontroller
  
• A built-in LM393 comparator automatically switches the digital output when the sensor level exceeds the threshold set with the potentiometer

An easy way to add touch detection to your projects.

Technical specifications

What's included?

• Touch sensor with comparator

Warranty and shipping

We do our best to test all electronics before sending them to you. 
This helps us deliver reliable products and saves you unnecessary trouble during development. Faults can occur, although we encounter them very rarely. If you have a problem with the equipment you ordered, you can always contact us, and we'll gladly help you resolve it. 

We dispatch from Aarhus to Denmark and Sweden. Shipping options and prices are shown at checkout. Delivery time depends on availability, destination and shipping method; contact us before ordering if you need an item by a specific date.