Pimoroni
LTP-305 LED matrix (pair) - Green
The Lite-On LTP-305 LED matrices have quite a heritage! They were first developed in 1971 by Texas Instruments, but subsequently have been manufactured ...
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The Lite-On LTP-305 LED matrices have quite a heritage! They were first developed in 1971 by Texas Instruments, but subsequently have been manufactured by Lite-On.
They're available in two suitably retro colours - red or green - and each display has 5x7 pixels, plus a decimal point.
The matrices can be driven by our Micro Dot pHAT board, with up to 6 matrices in your choice of colours. Or drive them directly from a suitable microcontroller or matrix driver chip like the IS31FL3730 we use on Micro Dot pHAT.
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- pHAT
- A smaller add-on board format for Raspberry Pi, similar in idea to a HAT but usually not full-sized. It matters because pHAT compatibility can affect how neatly a board stacks or fits into a Raspberry Pi project.
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