SparkFun

SparkFun Qwiic Alphanumeric Display - Purple

Name: SparkFun Qwiic Alphanumeric Display - Purple
Brand: SparkFun
SKU: SF-COM-16918
Price: 22.15 AUD
Availability: InStock

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We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. By adding more segments to each digit you can disp...

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We are quite familiar with seven-segment displays. We see them on our alarm clocks, ovens, and microwaves. By adding more segments to each digit you can display more than just numbers! Introducing the brand new SparkFun Qwiic Alphanumeric Display. These purple fourteen-segment digits allow you display all sorts of numbers, characters, and symbols. With Qwiic, simply plug it in and go. No soldering, no figuring out which is SDA or SCL, and no voltage regulation or translation required!

The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print() function. With this library, you'll be able to send I²C commands to the VK16K33 LED driver chip to light up segments (including the decimal point or colon) and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.

The VK16K33 also supports I²C address configuration. Simply close a combination of the address jumpers on the back and you can communicate with up to four displays on the same bus. Our slim board design also features detachable stand off holes, vertical Qwiic connectors, and internal mounting holes.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Get Started with the Qwiic Alphanumeric Display Hookup Guide

Features:

Purple display
Operating Voltage: 3.3V
Integrated RC oscillator
Maximum display segment numbers: 128 patterns
13×3 matrix key scan circuit
16-step dimming circuit
I²C Addresses: 0x70 (0x71, 0x72, 0x73)
2x Qwiic connectors
2x Wall Mounting Points

Documents:

Videos

Jargon buster

Plain-language definitions for the technical terms used above.

Address jumpers: Address jumpers are small solder pads, links or switches used to change a device's address on a shared bus such as I2C. They matter when you want to connect several identical devices to the same controller, since each one needs a unique address to avoid conflicts.
LED driver: An LED driver is a control chip or circuit that supplies and switches power to LEDs. For a display board, it reduces the number of microcontroller pins needed and handles tasks like lighting the right segments and adjusting brightness.
Matrix key scan: Matrix key scanning is a way to read many buttons arranged in rows and columns using fewer pins. If a display driver includes this feature, it can potentially handle a small keypad as well as the display, depending on how the board exposes it.
PCB: A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
Qwiic: Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
RC oscillator: An RC oscillator is a simple timing circuit made from a resistor and capacitor. In a display driver, it provides an internal clock so the chip can refresh the display without needing a separate timing signal from your microcontroller.
VK16K33: A chip used to drive LED segment displays and scan simple key matrices. Its presence means the microcontroller does not have to control every LED segment directly, and you communicate with the display using commands instead of many separate wires.