16 LED 74HC595 board "Freeman"

February 24th 2016

A 10mm version of this kit is available here. Click here to see a video demo of this kit being used as a binary clock, and driven by a Raspberry Pi.
This board can be driven by an Arduino, Espruino, PICAXE, Parallax, or Raspberry Pi.
This board contains two 74HC595 shift registers which drive 16 LEDs. Each LED can be controlled individually and will keep its state until changed - so no need to constantly refresh the display.
Usage Suggestions
This board has many uses, it's linear configuration makes it ideal for visually representing the value of a sensor (such as a temperature IC like the DS18B20). It could also be used to illuminate your desk (stick it under your monitor), or as a binary clock/counter.
download the latest version as a zip file
Latest build instructions here (PDF).
  Example code for Arduino, Espruino, PICAXE microcontrollers and the Raspberry Pi. Contains examples for one, two and four board configurations.    
    Several examples that you can use as the basis for bigger and better projects.    


  • Fun to build and useful add-on
  • 16x 5mm LEDs
  • 2x 74HC595 shift registers
  • Diode to prevent against reverse power supply connection
  • Control from Arduino, PICAXE or Raspberry Pi (and many more)

Kit Contents

  • High quality printed circuit board (PCB)
  • 16x 330 ohm resistors
  • 16x 5mm LEDs (various colour options available)
  • 2x 74HC595 shift register ICs (datasheet)
  • 1x 1N4001 diode
  • 2x 16 pin DIL sockets (for the shift register ICs)
  • 5 pin header, for power and control connection






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Please get in touch and let us know your development requirements!



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May 13th, 2016

Maximum Octopus proud to announce takeover of the Drop the Chicken franchise.

April 14th, 2016

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April 13th, 2016

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March 30th, 2016

A new update to the LED Matrix Studio uploaded. Version 0.8.7 fixes a couple of minor bugs