Difference between revisions of "Speedcontrol"
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===Parts=== | ===Parts=== | ||
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Revision as of 16:40, 4 January 2018
Contents
Generell
With this measuring device the actual speed can be determined.
Application
Lightning: Fast vehicles are indicated by the "speed trap".
However, no radar beam is used for measurement.
(The circuit can also be used without display)
Speed display: Like on some school roads, an display can be placed beside the road
Technology
The "flash light" is triggered by minus.
You can setup a Servotiny or a speed-dependent Servo junction.
Fast vehicle drive straight forward, slower to be diverted to the parking lot or gas station
Function
The time is measured with 2 Sensors, Light barriers, Feedbacksensors#Reedswitches or Hallsensor what
the vehicle need to drive about 15cm. The sensors must switch to minus.
Setup
2 Jumpers are used to set the scale: H0, TT, oder N |
|
Parts
Special parts
ATMEGA8_DIP28 | programmed by Claus Ilchmann |
Plate | made by DC-Car of Claus Ilchmann |
Common parts
1 | C1 | 470uF |
3 | C3,C4,C6 | 1uF |
2 | CON1+4 | 3,5 mm 4 Pol- Screw-Connector |
1 | D1 | 1N400X |
1 | F1 | Polyfuse 2A |
1 | IC2 | 78S05 |
2 | JP1/JP2 | Solder bridge |
1 | LED1 | LED |
13 | R1-8,R11-15 | 680 |
1 | R9 | 50K |
1 | R10 | 47 |
1 | R16 | 10K |
1 | S1 | Pushbutton |
Additional Parts
Two Seven-Segment Display with common anode. They are available in different sizes.
Every segment has its own anode which are connected to the one, ten, and hundreds contact of the plate.