This is Attiny13 2 channels dimmer with 5 program modes and speed control:
1. Dim between 2 channels
2. Dim 2 channels together
3. Blink mode 1
4. Blink mode 2
5.Blink mode 3
Step 1 Hardware
Dimmer is based ot Attiny13V:
– 1k flash
– 64byte sram
– 64byte eeprom
– 5 IO pins
Parts:
1. Attiny13V – 1 pc
2. 78L05 – 1pc.
3. Capacitor 100uF – 1 pc
4. Capacitor 10uF – 1 pc
5. Capacitor 100nF – 2 pc
6. Resistor 10K – 2 pc
7. Resistor 200R – 1pc
8. Red Led 5mm – 1pc
9. Resistor 4K7 – 2 pc
10. BD681S – 2 pc
11. Button – 1 pc
12. Potentiometer 10K – 1pc
… Some little box, small piece of proto PCB and wires
Step 2: Software
Total program is 1000 bytes. The MCU is almost full :))
Attachments
Read more: Led dimmer 2 channels using Attiny13V microcontroller