Touch Module TTP223B 1-channel

Touch Module TTP223B 1-channel

This compact touch module operates on one channel and is easy to use for various electronic projects. The module responds to touch and provides a clear status output via an LED and an output pin.

Key features

• Voltage: 2.0 - 5.5V DC (Vcc and GND)
• 1 LED for status indication
• 1 output pin for touch status (I/O pin)
• Adjustable output: high or low voltage
• Function as Reset button or On/Off button (adjustable by soldering A and B)
• Small dimensions: 15 x 11 mm

Settings A and B

The function and output of the module are determined by the connection of the A and B pins:

• A=0, B=0: Reset button with high output (default)
• A=0, B=1: On/Off button with high output
• A=1, B=0: Reset button with low output
• A=1, B=1: On/Off button with low output

Note

In reset mode, the sensor can register a touch for a maximum of about 7 seconds. After that, the output switches back to low (at A=0, B=0) or high (at A=1, B=0).