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How to Lights Control for Model Cars

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The author gave his partner a radio controlled (RC) model car as a gif t. She found it a lot of fun, but thought that adding realistic lights would be a definite improvement. So the author went back to his shed, plugged in his soldering iron, and set to work equipping the car with realistic indicators, headlights, tail lights and brake lights. Lights Control for Model Cars Circuit Diagram The basic idea was to tap into the signal from the radio control receiver and, with a bit of help from a microcontroller, simulate indicators using flashing yellow LEDs and brake lights using red LEDs. Further red LEDs are used for the tail lights, and white LEDs for the headlights. Connectors JP4 and JP5 (channel 0) are wired in parallel, as are JP6 and JP7 (channel 1), allowing the circuit to be inserted into the servo control cables for the steering and drive motor respectively. The ATtiny45 micro-controller takes power from the radio receiver via diode D1. T1 and T2 buffer the servo signals to pro...

Simple Knight Rider lights Circuit for model cars

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This simple circuit drives 6 LEDs in 'Knight Rider scanner mode'. Power consumption depends mainly on the type of LEDs used if you use a 7555 (555 CMOS version). Simple Knight Rider lights Circuit Diagram Note That V DD and GND for the ICs are not shown in the circuit drawing. Pin-outs: (7)555 4017 1 GND 1 Q5 9 Q8 2 TRIGGER 2 Q1 10 Q4 3 OUTPUT 3 Q0 11 Q9 4 RESET 4 Q2 12 CO 5 CONTROL VOLTAGE 5 Q6 13 NOT ENABLE 6 THRESHOLD 6 Q7 14 CLK 7 DISCHARGE 7 Q3 15 RESET 8 V DD 8 GND 16 V DD