Circular Soft Potentiometer (Ribbon Sensor)
Circular resistive ribbon sensor with a donut-shaped sensing region (55.96 mm OD, 35.63 mm ID) and nominal 10 kΩ across the outer leads. The center wiper floats when unpressed — use a ~100 kΩ pull-up.
Pinout
- Outer lead A
One outer lead of the nominal 10K soft potentiometer. Adafruit says one side pin is connected to ground through a 10K series resistor for use.
Type · UnknownVoltage · Use through 10K series resistor; do not connect directly to ground/power per Adafruit product page. - Wipermiddle pin
Middle pin resistance changes relative to either outer lead depending on press position; read as the analogue output. Adafruit says it floats with no pressure.
Type · AnalogVoltage · Analogue voltage ranges from about 1/3 Vcc to 2/3 Vcc in Adafruit suggested circuit. - Outer lead B
Other outer lead of the nominal 10K soft potentiometer. Adafruit says the other side pin is connected to Vcc through a 10K series resistor for use.
Type · PowerVoltage · Vcc may be 3V, 5V etc through 10K series resistor per Adafruit product page.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| Outer lead A | Unknown | One outer lead of the nominal 10K soft potentiometer. Adafruit says one side pin is connected to ground through a 10K series resistor for use. | Use through 10K series resistor; do not connect directly to ground/power per Adafruit product page. |
| Wipermiddle pin | Analog | Middle pin resistance changes relative to either outer lead depending on press position; read as the analogue output. Adafruit says it floats with no pressure. | Analogue voltage ranges from about 1/3 Vcc to 2/3 Vcc in Adafruit suggested circuit. |
| Outer lead B | Power | Other outer lead of the nominal 10K soft potentiometer. Adafruit says the other side pin is connected to Vcc through a 10K series resistor for use. | Vcc may be 3V, 5V etc through 10K series resistor per Adafruit product page. |
Pin details
3 connections- Outer lead A
One outer lead of the nominal 10K soft potentiometer. Adafruit says one side pin is connected to ground through a 10K series resistor for use.
UnknownVoltage · Use through 10K series resistor; do not connect directly to ground/power per Adafruit product page. - Wipermiddle pin
Middle pin resistance changes relative to either outer lead depending on press position; read as the analogue output. Adafruit says it floats with no pressure.
AnalogVoltage · Analogue voltage ranges from about 1/3 Vcc to 2/3 Vcc in Adafruit suggested circuit. - Outer lead B
Other outer lead of the nominal 10K soft potentiometer. Adafruit says the other side pin is connected to Vcc through a 10K series resistor for use.
PowerVoltage · Vcc may be 3V, 5V etc through 10K series resistor per Adafruit product page.
Start wiring
I2C · Analog · 3.3 – 5 V · Bare
Verify supply voltage and logic levels before powering up.
Module pins: Outer lead B, Wiper / middle pin. Schematik maps them to your board in the app.
Encoders
27 other optionsBare EC11 quadrature encoders, I2C navigation encoders, absolute AS5600 and 8421 encoders, slide and ribbon potentiometers, and digital I2C pots — covering most ways to read angular or linear position.
Adafruit ANO Rotary Navigation Encoder to I2C STEMMA QT Adapter visual previewAdafruit ANO Rotary Navigation Encoder to I2C STEMMA QT Adapter
$19.95
Adafruit DS1841 I2C Digital 10K Potentiometer Breakout visual previewAdafruit DS1841 I2C Digital 10K Potentiometer Breakout
$7.95
Adafruit DS3502 I2C Digital 10K Potentiometer Breakout - STEMMA QT / Qwiic visual previewAdafruit DS3502 I2C Digital 10K Potentiometer Breakout - STEMMA QT / Qwiic
ANO Directional Navigation and Scroll Wheel Rotary Encoder visual previewANO Directional Navigation and Scroll Wheel Rotary Encoder
BOSON: Rotation Sensor Potentiometer Module i1 (0~300°) visual previewBOSON: Rotation Sensor Potentiometer Module i1 (0~300°)
Dial-type Potentiometer (10k) visual previewDial-type Potentiometer (10k)
Fermion: 8421 Encoder-Horizontal (Breakout) visual previewFermion: 8421 Encoder-Horizontal (Breakout)
Fermion: 8421 Encoder-Vertical (Breakout) visual previewFermion: 8421 Encoder-Vertical (Breakout)
Fermion: EC11 Rotary Encoder Module visual previewFermion: EC11 Rotary Encoder Module
$2.90
Gravity: 360 Degree Rotary Encoder Module visual previewGravity: 360 Degree Rotary Encoder Module
Gravity: Analog Rotary Switch Module V1 visual previewGravity: Analog Rotary Switch Module V1
Gravity: Analog Rotation Potentiometer Sensor - Rotation 3600° visual previewGravity: Analog Rotation Potentiometer Sensor - Rotation 3600°
Related groups
4 groups
12mm Domed Push Button Pack visual previewButtons & switches
Most parts here are simple contacts: press or release, open or closed. A few outliers — rotary switch potentiometer breakouts, NeoPixel potentiometers, wiper plungers — carry separate wiring requirements worth checking before you order.
Input & controls · Buttons & switches · 106 parts
4x4 Matrix Keypad visual previewKeypads
Matrix keypads, analog ADKey boards, I2C keypad controllers, joysticks, and finished USB-HID keyboards are all here. Pin budget and simultaneous-press requirements are the splits that matter.
Input & controls · Keypads & controllers · 37 parts
Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121 [STEMMA QT] visual previewTouch
MPR121, 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.
Input & controls · Touch sensors · 14 parts
1.75mm PLA (1kg) - Black visual preview3D printing
DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.
Tools & prototyping · 3D printing · 53 parts