VT

From WIKI_DCCar_EN

Traffic Control

Priority Tiny (VT or VTL)


VT-TINY or VTL-Tiny DIL Chip

Available in DIL or SMD packages
Printable version available here


Usable for:

  • Stop signs (a vehicle stops itself)
  • Priority control (a vehicle stops other vehicles)
  • Construction zones (a vehicle stops itself)
  • Narrow sections (a vehicle stops oncoming traffic)
  • Parking/Bus stops (a vehicle stops other vehicles)
  • Priority control for left-turners VTL (a vehicle stops vehicles that have their left turn signal activated)

The Priority Tiny can be used with the DC-Car system to control traffic.

When a vehicle passes over a sensor (reed switch, HG1 Hall sensor, IR sensor, or phototransistor), an IR stop signal is generated for an adjustable duration. Consequently, this traffic control module can also be referred to as a Construction Zone Tiny, Narrow Section Tiny, or Stop Tiny.

The timer resets and begins anew each time the sensor is triggered. Maximum 60 seconds (600 sec)
Thus, heavy traffic can permanently block the side street.

Only vehicles with their left turn signal activated will react to the stop signal from the VTL.









Parts List for 5 Volts

5-Volt operation only
Servo-Tiny PCB
IC2 = VT-Tiny (DIL)
C1 + C5 = Tantalum capacitor 4.7µF/16 Volts
C3 + C4 = Tantalum capacitor 1µF/16 Volts
R1 = Series resistor for IR LED: 150 – 680 Ohms
R2 = Potentiometer: 10K – 50K
R4 = Resistor: 270 Ohms
R6 = Resistor: 100 Ohms (soldered vertically)
R7 = Resistor: 10K


Accessories:
8-pin screw terminal block
    (2.54mm pitch)
4-pin header strips
    (for 5V connection)
IR LED
Reed switch / Pushbutton
or Hall sensor HG1
Plug-in power supply unit
  5V DC or 12V DC

PCB (DC-Car-Servo-Tiny)
    or perfboard

Bill of Materials for 12V DC or 16V AC

Additional components.
D1 = 1N4001 Diode
IC1 = 78S05 Voltage Regulator
C2 = Electrolytic capacitor 470µF / 35 Volts



















DC-Car Board for VT and VTL (Servo-TINY Board)

Illustration for 12V DC or 16V AC
The 5V connection can be used for additional VT units or other modules


VT_Board 2015
 
VT_Board_2

Pre-assembled Modules VTLF and
VTLIRF (up to 16V AC; Reed Switch and FTR)

These pre-assembled modules do not correspond to the construction guide!


Version
with Reed switch or Hall sensor only
 

IR also for phototransistors
Note: FTR - +



Delivery, Service, and Troubleshooting

Service@modellautobahnen.de   S.Dankwardt 02103-9070350
dc-car-shop.de        Further info: WIKI-DE.DCCar.info
    dc-car.nl              Further info: WIKI-NL.DCCar.info
Sources of Supply: Dealers, Shops, Pickup Points   Service and Help