Touch and force sensing
12-channel capacitive touch (i2c output) — detects a touch through foil, wire or pads on a robot shell or hand.
Engineering inference
Adafruit Industries
Adafruit MPR121 12-Key Capacitive Touch
Adafruit 1982 MPR121 12-channel capacitive touch breakout (STEMMA QT): NXP MPR121 senses 12 electrodes (pads, foil, wire) and reports touch/release over I2C (0x5A–0x5D via ADDR) with an interrupt pin, 3–5 V supply with regulator, 33.0 × 19.3 mm board — touch-sensitive skin zones for a robot shell or hand.
1982Development boardPrice$7.95www.adafruit.com · in stock
Buy at www.adafruit.com Motor essentials
Facts about the complete product. Unknown values remain open design questions.
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
No-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
FAQ
Adafruit MPR121 12-Key Capacitive Touch questions
What voltage powers the Adafruit MPR121 12-Key Capacitive Touch?
Supply range 3–5 V.
How much does the Adafruit MPR121 12-Key Capacitive Touch cost?
From $7.95 at www.adafruit.com. Prices are observed unit prices before tax and shipping.
What are the Adafruit MPR121 12-Key Capacitive Touch dimensions?
33.02 × 19.3 × 1.6 mm. A STEP model is available for enclosure fit checks.
Where does this Adafruit MPR121 12-Key Capacitive Touch data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Sources
- Adafruit MPR121 12-Key Capacitive Touch datasheet — Adafruit Industries
- www.adafruit.com listing