หัวข้อ: Bicycle Back Safety Light เริ่มหัวข้อโดย: Admin ที่ ตุลาคม 23, 2010, 10:34:22 AM จาก http://www.extremecircuits.net/2010/01/bicycle-back-safety-light-circuit.html
(http://lh5.ggpht.com/_FdGFE8NBDgc/S0mjhEoTbxI/AAAAAAAABfU/oyBWeNM_pnQ/bicycle_back_safety_light_schematic_circuit_diagram.gif) (http://www.redcircuits.com/BicyLed.GIF) Parts: R1 = 10K R2 = 100K R3 = 10R R4 = 10R R5 = 10R R6 = 10R R7 = 10R R8 = 10R R9 = 100K R10 = 100K R11 = 10R R16 = 10R R17 = 150R C1 = 1µF-63V C2 = 10nF-63V C3 = 100µF-25V B1 = 3V Battery (2 AA 1.5V Cells in series) SW1 = SPST Slider Switch D1-D13 = Red LEDs 5mm. or bigger, high efficiency IC1-IC2 = 7555 or TS555CN CMos Timer IC |