Grove - Touch Sensor
Grove capacitive touch sensor that detects finger proximity via a conductive metal pad, outputting a digital signal. Uses the same technology as smartphone capacitive touchscreens.
Pinout
- SIGgrove-1
Grove Touch Sensor signal output; Seeed wiki connects the module to digital port D2 and reads digitalRead on SIG
Type · GPIO - NCgrove-2
not connected on the Grove connector; Seeed wiki code comment lists SIG,NC,VCC,GND
Type · Control - VCCgrove-3
Grove connector supply rail for the TTP223 touch sensor module
Type · Power - GNDgrove-4
Grove connector ground
Type · GroundVoltage · 0V
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| SIG | grove-1 | GPIO | Grove Touch Sensor signal output; Seeed wiki connects the module to digital port D2 and reads digitalRead on SIG | |
| NC | grove-2 | Control | not connected on the Grove connector; Seeed wiki code comment lists SIG,NC,VCC,GND | |
| VCC | grove-3 | Power | Grove connector supply rail for the TTP223 touch sensor module | |
| GND | grove-4 | Ground | Grove connector ground | 0V |
Pin details
4 connections- SIGgrove-1
Grove Touch Sensor signal output; Seeed wiki connects the module to digital port D2 and reads digitalRead on SIG
GPIO - NCgrove-2
not connected on the Grove connector; Seeed wiki code comment lists SIG,NC,VCC,GND
Control - VCCgrove-3
Grove connector supply rail for the TTP223 touch sensor module
Power - GNDgrove-4
Grove connector ground
GroundVoltage · 0V
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: VCC, GND. Schematik maps them to your board in the app.
Touch
13 other optionsMPR121, CAP1188, CAP1203 Qwiic slider and AT42QT breakouts are sensor ICs for electrodes you wire yourself. Simple single-pad modules like the TTP223B give you one digital output with no bus required.
Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121 [STEMMA QT] visual previewAdafruit 12-Key Capacitive Touch Sensor Breakout - MPR121 [STEMMA QT]
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