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By Arduino nano, control RGB5050 light colorful scroll.
From S1 to S4 was then performed, four buttons to control the beam of the rolling way, and switch to a different jumper mode, can display different colors of lig...
Scrolling led matrix
The circuit diagram is designed for a maximum of 48 columns and 8 rows.
The led matrix is only 48 columns and 7 rows.
You can download the code in the Attachments.
2 pcs - LM7805 (5V Voltage Regulator)
4 pcs - 10uF Capacitor
1 pcs - Arduino Nano or Uno
7 pcs - 74HC595 IC
8 pcs - 2N2222 Transistor
8 pcs - 1k Ohm Resistor (for transisto...
**555 timer based PWM LED dimmer**
This project uses PWM to turn on and off a LED (or a strip of them) really fast and changes the duty cycle (Fig.1) so that the human brain perceive it as the dimming of the LED(s). This means that the MOSFET doesn’t have to drop large amount of voltage, this makes the device very energy efficient.
Display-Module created and developed for Eurorack-Synth-Modules.
Digit height: 5.03mm !
Module size (w x h): 20.7mm x 22.86mm
For following controllers:
Example code using Attiny84: