Specs
- Bluetooth and IR remote compatibility
- 3W speaker
- AUX audio output
- 50+ animations
- MP3 lossless decoding
- Adjustable animation flash speed
- Adjustable sensitivity
- 4.2V – 5.5V DC/mini-USB
- 100x94x120mm
This was an advanced soldering project. We’re talking about 888 = 512 LEDs!
The bag of the LEDs was GIGANTIC. However, everyday I soldered some LEDs here and there. As the days went by, I saw the bag of LEDs shrink. Slowly but surely I saw the light at the end of the tunnel
The cube is composed of layers of LEDs. Each layer is a 8×8 LED matrix. I had to take special care to ensure the anode and cathode didn’t short-circuit. The project comes with a jig which helped.
At last, I was finished. When I powered it up, it didn’t work.
My heart sank.
I consulted the manual then begin going through the steps again, thinking I must’ve missed something. What did I miss?
Turns out. I forgot to solder two bridges on the MCU. After that, it worked like PERFECTION
Despite 512 LEDs, the power supply is mini-USB. Requirements are 4.2-5.5V, 2000mA.
Schematic
The LED cube connections are shared between 2 MCU’s.
Once again, the LEDs are RGB despite being two pins? According to ChatGPT, it’s a bicolor LED.
An IR remote allows you to change the patterns from a distance
A Bluetooth module allows you to blast music through the speaker.