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  1. Parts
  2. /Modules
  3. /Development Modules

Rotary Encoder + Extras

OverviewPinoutWiringRelated groups
Rotary Encoder + Extras — Adafruit — 377

This rotary encoder is the best of the best, it's a high-quality 24-pulse encoder, with detents and a nice feel. It is panel mountable for placement in a box, or you can plug it into a breadboard (just cut/bend the two mechanical side tabs.) We also include a nice soft-touch…

Offers

  • Adafruit$4.50
  • ?DigiKey$4.50

Offers

  • Adafruit$4.50
  • ?DigiKey$4.50

Pinout

  • Ground

    Ground on the 3-pin encoder connector, per Adafruit product text.

    Type · groundVoltage · 0V
  • Coding pin A

    One of the two rotary encoder coding pins on the 3-pin connector, per Adafruit product text.

    Type · digital output
  • Coding pin B

    The second rotary encoder coding pin on the 3-pin connector, per Adafruit product text.

    Type · digital output
  • Switch terminal 1

    One terminal of the built-in normally-open push switch, per Adafruit product text.

    Type · switch contact
  • Switch terminal 2

    Other terminal of the built-in normally-open push switch, per Adafruit product text.

    Type · switch contact

Start wiring

I2S · 0V

Module pins: Ground. Schematik maps them to your board in the app.

Related groups

4 groups
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Connectors

Sort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.

Connectors & cables · Connectors · 28 parts

RGB backlight positive LCD 16x2 visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
I2C 20x4 Arduino LCD Display Module visual preview
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display V2.0 visual preview

Displays

Character LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.

Displays · TFT & LCD displays · 35 parts

MQ-2 Gas Sensor visual preview
MQ-3 Gas Sensor visual preview
MQ-135 Gas Sensor visual preview
Grove - Air quality sensor visual preview

Air quality

Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.

Sensors · Gas & air-quality sensors · 31 parts

Arduino Uno visual preview
Raspberry Pi Pico visual preview
Adafruit Feather nRF52840 Express visual preview
Pan-Tilt HAT kit visual preview

MCUs and boards

ESP32, Arduino Uno, Raspberry Pi Pico, and compatible add-on boards for running builds.

Boards · Microcontroller boards · 25 parts

Parts tray full · 5 max · remove a part to add another
PinPositionTypeFunctionVoltage
GroundgroundGround on the 3-pin encoder connector, per Adafruit product text.0V
Coding pin Adigital outputOne of the two rotary encoder coding pins on the 3-pin connector, per Adafruit product text.
Coding pin Bdigital outputThe second rotary encoder coding pin on the 3-pin connector, per Adafruit product text.
Switch terminal 1switch contactOne terminal of the built-in normally-open push switch, per Adafruit product text.
Switch terminal 2switch contactOther terminal of the built-in normally-open push switch, per Adafruit product text.