This product is no longer available
We no longer stock 16x8 1.2 LED Matrices+Backpack Round LEDs in Various Colors, but here are current alternatives in LED Drivers & Controllers.
16x8 1.2 LED Matrices+Backpack Round LEDs in Various Colors
Discontinued
A 16×8 LED matrix backpack that combines two 1.2" 8×8 round LED matrices on a single I2C-controlled driver board. The HT16K33 chip handles all the multiplexing, so you only need two I2C pins (SDA and SCL) to control 128 LEDs — no complex wiring required.
The backpack features constant-current drivers for consistent brightness, 1/16-step dimming control, and three address-selection jumpers allowing up to 8 backpacks on a single I2C bus. A small amount of soldering is required to attach the two matrices to the backpack board.
Key Features
- 16×8 LED Matrix – Two 1.2" round 8×8 matrices on one backpack
- HT16K33 Driver – Built-in clock and constant-current drivers for consistent brightness
- I2C Interface – Only 2 pins needed for full matrix control
- 16-Step Dimming – Adjustable brightness from very dim to full intensity
- Chainable – Up to 8 backpacks on one I2C bus (addresses 0x70–0x77)
- Compact – Backpack measures 72 × 32 × 2 mm
Specifications
- Backpack Dimensions – 72 × 32 × 2 mm
- Matrix Dimensions – 32 × 32 × 7 mm (each)
- I2C Addresses – 0x70–0x77 (selectable via jumpers)
- Pin Header Length – 13mm
Ideal For
- Scrolling text displays and small signage
- Compact notification and status indicators
- Arduino and microcontroller display projects
- Multi-backpack chainable display setups
Package Contents
- 1× 16×8 1.2" LED Backpack (fully assembled and tested)
- 2× 8×8 Round LED Matrices
- 1× 4-pin header
Note: Some soldering is required to attach the matrices to the backpack. A microcontroller is not included — any board with I2C support will work.
