to fininsh the circuit i need lots of tools
tool needed:
1. solder
2. soldering iron
3. wires
4. Tip31a or c
5. place mat
6. resistor
7. 12v input (i am thinking of 12V battery case)
so i go to shum shui po and Taobao for them
2010年7月20日 星期二
2010年7月4日 星期日
The LED circuit i will make
This is a circuit that need a input of 12v , 4 leds, wires, a chip TIP31a and a audio jack.
this circuit allow the LEDs blink with the audio input
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