19 open source boards using the MAX7219
Real designs built with the MAX7219, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
RP2040/RP2350OpenDeck r3.1.2
shanteacontrols
181 × 97 mm258 parts2LApache-2.0956
AVR/ArduinoHl alyx glove
StarGate01
85.6 × 41 mm33 parts2LMIT20
FPGACPArti-FPGA-Development-Board
AAWO
100 × 100 mm393 parts4LNo license13
RP2040/RP2350Painel pcb1
ArqueologiaDigital
91.4 × 119.4 mm59 parts2LNo license4
AVR/ArduinoKitchen timer
timer-chefs
60 × 110.8 mm48 parts2LNo license3
AVR/ArduinoUZ80
adzierzanowski
231.4 × 159.9 mm112 parts2LNo license2
8x8-LED-matrix-Purple-MAX7219-board hardware design
SolderedElectronics
22 × 54 mm70 parts2LTAPR-OHL-1.02
STM32Wordclock
evanparizot
350 × 349.9 mm315 parts4LNo license1
RP2040/RP2350Generic radio stack
neilenns
225 × 108.1 mm107 parts2LMIT1
RP2040/RP2350Mass Spring Damper SysID Lab
Scalable-Open-Source-Labs
185 × 83 mm82 parts2LMIT1
8x8-LED-Matrix-Green-MAX7219-board hardware design
22 × 54 mm70 parts2LTAPR-OHL-1.01
8x8-LED-matrix-White-MAX7219-board hardware design
22 × 54 mm70 parts2LTAPR-OHL-1.01
8x8-LED-matrix-Blue-MAX7219-board hardware design
22 × 54 mm70 parts2LTAPR-OHL-1.01
ButtonsLEDs
390 × 37 mm82 parts2LApache-2.0956
AVR/ArduinoPainel pcb2
91.4 × 119.4 mm53 parts2LNo license4
ESP32SchrackCounter
bismarx-v1
140 × 60 mm75 parts4LNo license2
STM32Wordclock proto r1
160 × 160 mm113 parts4LNo license1
ESP32SchrackCounter
98.5 × 88.5 mm69 parts4LNo license2
028INCH 8DIGIT
galopago
43.8 × 21 mm6 parts2LMIT1
The MAX7219 in open source designs
The gallery holds 19 open source boards using the MAX7219 from 15 GitHub repositories; a typical one measures about 98.5 × 88.5 mm and carries around 70 components.
74% are two-layer designs, the rest use four layers or more, and 53% carry an open source license.
The most starred is OpenDeck r3.1.2 by shanteacontrols.
Parts used alongside the MAX7219
Microcontrollers on boards using the MAX7219
What boards using the MAX7219 are built for
MAX7219: common questions
Where can I find a MAX7219 reference design?
Each of the 19 boards on this page is a real design using the MAX7219. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the MAX7219?
The USBLC6-2SC6, RP2040, 74HC14 and W25Q128JVS appear in the most repositories here.
Which microcontrollers do boards using the MAX7219 use?
Most are built on AVR/Arduino (4), RP2040/RP2350 (4), ESP32 (2) and STM32 (2).
How big is a typical board using the MAX7219?
The median is 98.5 × 88.5 mm, and 74% are two-layer designs.
What is the most popular open source board using the MAX7219?
By GitHub stars, OpenDeck r3.1.2 by shanteacontrols, with 956 stars.
Can I simulate one of these boards using the MAX7219 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.