Connect_N8108-02/-03

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N8108-02 & -03 7-LED Arrow Bar for Police Vehicles

Description of Lighting Effects

The N8108-02 Simulator is designed to provide centralized connection for LEDs connected to pad pairs A through G, which simulate a 7-light traffic arrow as used by modern police vehicles. Arrow direction control is also available.

The N8108-03 Simulator is designed to provide centralized connection for LEDs connected to pad pairs A through G, which simulate a 7-light traffic arrow as used by1970's era police vehicles. Arrow direction control is also available.

DC power input is connected to the DC+ and DC– solder pads as indicated in Fig.1 below. This module does not support filament type bulbs.

Utilizing the one of the industry’s most advanced microcontrollers and highly regulated voltage control circuitry, this total module consumes less than 140ma of current during normal operation with all LEDs attached. The 8-component switching buck regulator circuit maintains on-board power regulation within 2% while input voltage can range from 7.5 to 20 volts DC. All connected LEDs are supported by on-board resistors for current protection (and brightness balancing).

Connecting the N8108-02 & -03

These module’s tiny size will allow them to be placed so they are easily hidden from view. They only have circuitry on the board top side. The bottom of the board is electrically –DC and can be used for mounting with the small square double-sided sticky foam pad that is included in this package.

Included with each module are four 6” lengths of #32 insulated wire (red, black & two violet wires). These can be used for power input wires & control wires. If used, the red wire should be soldered to the +DC solder pad, the black to the –DC pad. The violet wires can be used for grounding (–DC) pads H & J to initiate the arrow effect.

Important note: A low-wattage iron with a pointed tip should be used for connection of wires. Too much heat or solder can easily damage the wires or module and void the warranty.

Figure 1

Also, all connecting wires should be pre-tinned before soldering them to the module. This will make connection quick and easy and ensure excessive heat is not applied to the solder points.

Connecting LEDs

When connecting the wired LEDs, proper polarity must be observed. LEDs are “polarity sensitive” and will not function if connected backwards. The N8108 is designed to provide for easy visual determination of proper LED polarity. As shown in Figure 1, There are solder pad pairs on the board designated as A, B, C, D, E, F, G. The oval shaped pads are for + (anode) LED connections, and the rectangular pads are for the – (cathode) LED connections.

Rectangular pads H & J are for input (arrow direction) control. Grounding pad H will cause arrow sequencing from left to right, grounding J will sequence from right to left. DO NOT ever ground both H & J at the same time, or circuit damage will occur.

N8108-02 Arrow-bar & program configuration:

1 LED on pad pair ‘A’ (blue LED) & LED on pad pair ‘G’ (red LED) alternately flash a double-pulse strobe every 0.3 seconds.

2. At the same time, LEDs on pad pairs ‘B’ thru ‘F’ turn on sequentially and stay on at 0.6 second intervals.

3. After ‘B’ thru ‘F’ are all on they flash off & on two times.

4. The sequence start over at 1.

Pads ‘H’ and ‘J’ control arrow sequence directions as noted above by grounding (–DC) either of these pads. This makes it easy for RC applications.

A double-throw single pole switch with the center pole (wiper) connected to ground can also be used for stationary applications.

N8108-03 Arrow-bar & program configuration:

1. LEDs on pad pairs ‘A’ thru ‘G’ turn on sequentially at 0.8 second intervals and stay on .

3. After ‘A’ thru ‘G’ are all on they turn off, then flash on once.

4. The sequence start over at 1.

Pads ‘H’ and ‘J’ control arrow sequence directions as noted above by grounding (–DC) either of these pads. This makes it easy for RC applications.

A double-throw single pole switch with the center pole (wiper) connected to ground can also be used for stationary applications.

Figure 2 below shows LED wiring connections to pad pairs for the 7-LED Arrow Bar Police Vehicle Simulator board.

Figure 2

NOTE: Input solder pads for arrow direction control (pad pairs H & J) require a control wire to be solder jumpered across both the oval and rectangular pads as shown in Figure 3 below.

Figure 3

WARNING!: When soldering the jumper wire on pad pair H ensure the stripped jumper wire is twisted and pre-tinned, AND, MAKE SURE the jumper and/or solder DOES NOT contact the circuit trace running between the pads.

This completes configuration and setup instructions for the Arrow bar lighting effects Simulator board.

We hope the added realism brings enjoyment to your hobby project that it deserves.

If you need assistance please contact: [email protected]