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16 High Power LEDs Knight Rider Light – Arduino Compatible
- Rajkumar Sharma
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- SKU: EL106464
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This is a Knight Rider LED Light and it is one of the best Arduino projects for beginners. This board drives 16 high-power LEDs to turn them ON one by one sequentially. This is an open-source Arduino compatible project that contains 16 high current MOSFETs, Atmega328 microcontroller, 5V regulator etc. The gate of IRLR7843 MOSFETs is connected to the I/O pins of the Atmega328 chip. Screw terminals are provided to connect the LEDs and power supply. Additional 2 x tactile switches and one connector for analog input are provided for further experiments. Operating power supply 12V to 15V DC, each output can drive 1A constant current load (1W to 12 W LED) without cooling and load up to 2A with forced cool air.
Features
- Operating Power Supply 12 to 15V DC
- Load: Each Channel up to 1A Constant @ room Temperature, 2A Constant with Fan
- LED 1W to 12W (12-24W with proper cooling with Fan)
- PCB dimensions: 154.14 x 53.97 mm
Components and Operations
- R1>>Pullup for Reset Pin,
- R3, R15, R23, R31, R7, R17, R25, R33, R11, R19, R27, R35, R13, R21, R29, R37 >> Optional Series Resistors for current limiting
- R4, R16, R24, R32, R8, R18, R26, R34, R12, R20, R28, R36, R14, R22, R30, R38 >> Current Limiting Resistors for MOSFET Gate
- CN11, CN10, CN9, CN8, CN6, CN5, CN4, CN3, >> LED -/Cathode
- CN2 >> LED +/Anode
- CN1>> 12 to 15V Power Input
- Capacitor C1, C8, C9 >> DC Bus Filter Capacitors
- Capacitor C2, C3 >> DC Filter Capacitors for 5V Supply
- LM78M05>> 5V Regulator provides 5V to Micro-Controller from 12V Supply
- U1 ATMEGA328 >> Micro-Controller Loaded with Arduino Code
- C6 >> Filter Capacitor for Ref Voltage
- Crystal Y1, C4, C5, R6 >> Oscillator for Atmega328 Micro-Controller
- SW1, SW2, R2, R5, R10, C7, R9, CN7, >> Optional for additional development
Arduino Pins
- D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, A0, A1 >> 16 LEDs
- A4, A4 >> Optional Tactile Switches
- A3>> Optional Analog Input
Note: This is an open-source Arduino compatible project, that can be used in many other applications which require 16 channel high power drivers. The board can drive 12V LEDs directly, if LEDs doesn’t have a series resistor or constant current circuitry, use series resistors R3, R15, R23, R31, R7, R17, R25, R33, R11, R19, R27, R35, R13, R21, R29, R37
Code
Arduino example code is provided, follow the instructions below to load the Arduino Code into a new ATMEGA328 chip
Schematic
Parts List
Connections
Gerber View
Photos
Video
IRLR7843 Datasheet
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PCB
DIGIKEY CR2512-J/-000ELFCT-ND quel rapport avec le R680
10E 5% SMD SIZE 0805YAGEO quel est la référence ?
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