Incremental Photoelectric Rotary Encoder - 400P/R
Industrial aluminum-body incremental photoelectric encoder with 400 pulses/revolution (1600 counts with quadrature), rated up to 5000 RPM. Requires pull-up resistors on output lines.
Start wiring
I2C · Analog · 3.3 – 5 V · Bare
Some modules need I2C or signal pull-ups — check the datasheet.
Encoders
26 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.
Related groups
4 groups
SparkFun Rotary Switch Potentiometer Breakout visual preview
Potentiometer Wiper/Plunger - 14mm visual preview
Momentary Pushbutton Switch visual preview
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 preview
Adafruit PC Joystick to seesaw I2C Adapter visual preview
Adafruit Trellis Monochrome Driver PCB for 4x4 Keypad & 3mm LEDs visual preview
Adafruit UNTZtrument 16x8 Grid Controller 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 preview
BOSON: Capacitive Touch Sensor i8 visual preview
CAP1188 - 8-Key Capacitive Touch Sensor Breakout - I2C or SPI visual preview
Capacitive Touch Kit for Arduino 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 preview
1.75mm PLA (1kg) - Gold visual preview
1.75mm PLA (1kg) - Green visual preview
1.75mm PLA (1kg) - Natural 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
