I2C 8x8 LED dot matrix display for fischertechnik
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A fischertechnik enclosure for this HT16K33 based I2C LED dot matrix module I found on aliexpress a while ago.
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- Creative Commons — Attribution — Noncommercial — Share Alike
I made a fischertechnik enclosure for this HT16K33 based I2C LED dot matrix module I found at aliexpress a while ago, it seems it goes by the name of "1088AS", the PCB is labeled "HW-571".
You'll have to desolder the connector and connect the G(nd), V(3.3), SDA (D) and SCL (C) pads to a 2x3 male pin header soldered onto a 5x2 piece of perfboard as shown.
I damage two of pads while desoldering the original connector, so I had to solder SDA and SCL directly to the chip.
My version came with faulty wiring of two of the LED rows. I fixed that by desoldering pins 5 and 7 of the chip, gently lifting and deconnecting them from their pads and connecting them to their correct LED matrix pins with two short wires (see pictures, white and brown wires).
Print Settings
Printer:
Creality Ender 3 v2
Rafts:
No
Supports:
No
Resolution:
.12mm
Infill:
0%
Filament:
any PETG
any
Notes:
The two parts are designed without any tolerances, as I tuned my printer to print very precisely. Use the horizontal expansion setting to fine tune, if needed.
Category: Construction Toys