Circuit Documentation

Summary

This circuit integrates an Arduino UNO microcontroller with multiple peripherals including IR Receiver, 5V relays, LED bulbs, a fan, a Spark motor driver, and power sources like a 12V battery, a 9V battery, and a 2.1mm DC Barrel Jack. The Arduino UNO controls the relays which in turn switch various loads such as LED bulbs and a fan. The IR Receiver is used to receive signals, presumably for remote control functionality. The Spark motor driver is connected to a 12V battery and is likely used to control a motor.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

5V Relay (x3)

• An electromechanical switch that allows a low-power circuit to switch a relatively high current on and off.
• It has a Normally Open (NO) contact, a Common terminal (COM), a Normally Closed (NC) contact, an input signal pin (In), a ground pin (GND), and a power supply pin (VCC).

IR Receiver

• A component that receives IR signals from a remote control.
• It has a data output pin (DATA), a power supply pin (VCC), and a ground pin (GND).

LED Bulb AC (x2)

• An AC-powered light-emitting diode bulb.
• It has a positive (+) and a negative (-) terminal.

Fan

• A small DC fan for cooling purposes.
• It has a ground (GND) and a power supply pin (5V).

Spark Motor Driver

• A motor driver capable of driving a bidirectional DC motor.
• It has pins for motor power supply (V+, V-), logic power supply (VCC), ground (GND), pulse-width modulation input (PWM), and motor outputs (M+, M-).

12V Battery

• A DC power source providing 12 volts.
• It has a positive (+) and a negative (-) terminal.

9V Battery

• A DC power source providing 9 volts.
• It has a positive (+) and a negative (-) terminal.

2.1mm DC Barrel Jack

• A power connector typically used for attaching external power sources to the circuit.
• It has a switch pin (switch), a sleeve pin (sleeve), and a center pin (center).

Wiring Details

Arduino UNO

• 3.3V connected to IR Receiver VCC
• 5V connected to all 5V relay VCC pins
• GND connected to all 5V relay GND pins and IR Receiver GND
• D10 connected to 5V relay (instance 1) In
• D9 connected to 5V relay (instance 2) In
• D8 connected to 5V relay (instance 3) In
• D7 connected to IR Receiver DATA

5V Relay (instance 1)

• Normally Open connected to LED bulb AC (instance 1) +
• Common terminal interconnected with other relays and Spark M+

5V Relay (instance 2)

• Normally Open connected to Fan 5V

5V Relay (instance 3)

• Normally Open connected to LED bulb AC (instance 2) +

IR Receiver

• DATA connected to Arduino UNO D7
• VCC connected to Arduino UNO 3.3V
• GND connected to Arduino UNO GND

LED Bulb AC (instance 1)

• + connected to 5V relay (instance 1) Normally Open
• - interconnected with other AC loads and Spark M-

LED Bulb AC (instance 2)

• + connected to 5V relay (instance 3) Normally Open
• - interconnected with other AC loads and Spark M-

Fan

• 5V connected to 5V relay (instance 2) Normally Open
• GND interconnected with other AC loads and Spark M-

Spark Motor Driver

• M+ interconnected with relay Common terminals
• M- interconnected with other AC loads
• V+ connected to 12V Battery +
• V- connected to 12V Battery -

12V Battery

• + connected to Spark V+
• - connected to Spark V-

9V Battery

• + connected to 2.1mm DC Barrel Jack switch
• - connected to 2.1mm DC Barrel Jack sleeve

2.1mm DC Barrel Jack

• switch connected to 9V Battery +
• sleeve connected to 9V Battery -

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Note: The provided code for the Arduino UNO is a template with empty setup and loop functions. The actual functionality needs to be implemented based on the requirements of the circuit's operation.