ขาย ►☏Electronic DIY Kit Flash Light Kits 73 LEDs Red Yellow Dual Color Flashing Soldering Practice Board PCB Circuit Traini ราคาที่ดีที่สุด

Installation Steps: 1.Install RES: 200 ohm resistor install on R2-R10 pad, 1K ohm resistor installed to R1, R2-R10 pad. 10K ohm resistor installed to R21 pad 2.Install a red LED to D1 3.Left to right, red, yellow, red, yellow in order to install LED. The LED's anode corresponds to the square pad 4.Red-yellow-red-yellow continues to install LED 5.Installation completes all LED 6.Install adjustable resistance cap, electrolytic capacitor and DC power socket 7.Install S9013 triode to Q1-Q10 position pads 8.Install integrated circuit. Be careful pin direction 9.Solder the battery box red line on the VCC. The black line is weldered to the GND. Check the direction of the PCB capacitor