FireTruck

Cardboard Fire truck powered by Arduino UNO for kids.

My project

Final product

Video with firetruck demonstration

Technical section

Part list

Connectors and cables

• 1x XLR187F
• 1x XLR188F
• 1x Panel IEC320 C14 230V
• 2x Faston female terminal 6,3x0,4 for cable 1-1,5mm2
• WAGO221-412
• WAGO221-413
• WAGO221-413
• Wire - CYA 1x0,5 H05V-K (red,blue,white,yellow)

Lights

• LED strip 12W/m 5730 cold white 12V - approx. 1,5m
• LED strip addressable WS2812B 9W/m 5V - min. 16 leds or 60cm

Inside el.

• 1x MOSFET module with led signalization
• 2x Relay module 5V with LED signalization
• 2x Speaker 40mm/8Ohm/3W
• 1x Battery Westinghouse WA1272 12V/7,2Ah F2 or similar
• 1x Switching power supply MEAN WELL ADD-55A

Panel

• 1x Key switch on/off (ignition switch)
• 1x Arcade push button 30mm - blue
• 1x Arcade push button 30mm - white
• 1x Cradle switch (backlight 12V) - red
• 1x Cradle switch (backlight 12V) - blue
• 1x Cradle switch (backlight 12V) - green
• 1x Panel ampermeter 0-3A
• 1x Panel voltmeter 0-15V

Arduino + shield

• 1x Arduino UNO R3
• 1x PCB blank shield for arduino uno (or create your own PCB)
• 1x 6-pin female pin header with long legs
• 2x 8-pin female pin header with long legs
• 1x 10-pin female pin header with long legs
• 7x 2-pin Screw terminal (pin distance 5,08mm)
• 1x C1 1000uF/16V
• 1x C2 470uF/16V
• 3x resistor 10K/0,25W (R1,R2,R3)
• 1x resistor 640 (R4)
• 1x resistor 330 (R5)
• 2x resistor 1K (R6,R7)
• 1x optocoupler PC817
• 2x 8-pin female pin header
• 2x DFPlayer mini
• 2x micro SD card

Wiring diagram

Firetruck - schematic PDF

Arduino UNO shield

Firetruck - arduino shield schematic PDF

Firetruck - arduino shield PCB PDF

Construction details

Front lights

Transparent cover is from sushi box, yellow direction ligts are from yoghurt cup. White LED strips:

Top beacon

Two blue PET bottles and addresable RGB LED strip divided to two parts. Small speaker for sound:

Rear ligts

Two red PET bottles with common white LED strip inside:

Rear beacons

Inside part is made from two PET bottle caps. They are holding 3 LEDS of addressable RGB strip. We can create rotating effect by blinking one by one. Beacons are covered by bottom of 0.5l blue PET bottle.

Connectors

C14 connector (230V) is used for charging from wall outlet. XLR connector is used for connection of truck trailer.

Arduino shield

I made it from blank arduino uno shield PCB and wires because of fast prototyping. It is not nice, but it works...

There are two DFPlayers on the shield. Pinout of DFPlayer mini:

(Be careful, when you will use PCB design from this repo, there are DFPlayers upside down compared to my photos - you will put SD cards from oposite side. VCC pin of DFPlayer should be connected to square pin.)