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Adafruit 7-Segment Backpack - 1.2 Tall Digits

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Adafruit 7-Segment Backpack - 1.2 Tall Digits

Drive large 1.2" tall 7-segment displays with ease using this HT16K33-based I2C backpack. The updated design includes a built-in 5V boost converter so you get bright, consistent LED segments even when running from 3.3V power — no separate 5V supply needed. STEMMA QT / Qwiic connectors provide plug-and-play I2C connectivity.

The backpack handles all multiplexing over I2C, keeping your wiring simple. Stackable design with address jumpers lets you run up to 8 backpacks on the same two I2C wires.

Key Features

  • HT16K33 I2C LED Driver – Simple I2C control with no additional pins required
  • Built-In 5V Boost Converter – Bright LEDs from 3.3V or 5V power
  • STEMMA QT / Qwiic Connectors – Plug-and-play I2C with no soldering for the data connection
  • Stackable – Address jumpers allow up to 8 backpacks on the same I2C bus
  • For 1.2" 7-Segment Displays – Large, readable digits
  • Arduino and CircuitPython Support – Ready-to-use LED Backpack library

Ideal For

  • Large clocks and timers
  • Score displays and counters
  • Temperature and sensor readouts
  • Any project needing large, visible numeric display

Package Contents

  • 1× Adafruit 7-Segment Backpack for 1.2" Displays (assembled and tested)
  • 1× Header strip
Important: A 1.2" 7-segment display is not included. This backpack is only guaranteed to work with the 1.2" 7-segment displays we stock — third-party displays may not be compatible.
$6.42

Original: $21.40

-70%
Adafruit 7-Segment Backpack - 1.2 Tall Digits—

$21.40

$6.42

Product Information

Shipping & Returns

Description

Drive large 1.2" tall 7-segment displays with ease using this HT16K33-based I2C backpack. The updated design includes a built-in 5V boost converter so you get bright, consistent LED segments even when running from 3.3V power — no separate 5V supply needed. STEMMA QT / Qwiic connectors provide plug-and-play I2C connectivity.

The backpack handles all multiplexing over I2C, keeping your wiring simple. Stackable design with address jumpers lets you run up to 8 backpacks on the same two I2C wires.

Key Features

  • HT16K33 I2C LED Driver – Simple I2C control with no additional pins required
  • Built-In 5V Boost Converter – Bright LEDs from 3.3V or 5V power
  • STEMMA QT / Qwiic Connectors – Plug-and-play I2C with no soldering for the data connection
  • Stackable – Address jumpers allow up to 8 backpacks on the same I2C bus
  • For 1.2" 7-Segment Displays – Large, readable digits
  • Arduino and CircuitPython Support – Ready-to-use LED Backpack library

Ideal For

  • Large clocks and timers
  • Score displays and counters
  • Temperature and sensor readouts
  • Any project needing large, visible numeric display

Package Contents

  • 1× Adafruit 7-Segment Backpack for 1.2" Displays (assembled and tested)
  • 1× Header strip
Important: A 1.2" 7-segment display is not included. This backpack is only guaranteed to work with the 1.2" 7-segment displays we stock — third-party displays may not be compatible.