Circuit Documentation

Summary

This circuit is designed to utilize multiple piezo sensors to generate an AC signal, which is then rectified and boosted to power a load (a bulb) and an Arduino UNO microcontroller. The circuit also includes a current sensor to monitor the current flowing through the load.

Component List

1. Piezo Sensor

   • Pins: +, -
   • Description: Converts mechanical energy into electrical energy.

2. 1000uF/25V Capacitor

   • Pins: +, -
   • Description: Stores electrical energy and smooths out voltage fluctuations.

3. 18650 Li-ion Battery x 2

   • Pins: +, -
   • Description: Provides a stable DC power supply.

4. Bulb

   • Pins: +, -
   • Description: Acts as a load to consume electrical power.

5. Bridge Rectifier

   • Pins: AC input +, AC input -, +, -
   • Description: Converts AC to DC.

6. DC-DC Boost Converter

   • Pins: VIN-, VIN+, VOUT+, VOUT-
   • Description: Boosts the DC voltage to a higher level.

7. Current Sensor 5A

   • Pins: 1, 2, GND, OUT, VCC
   • Description: Measures the current flowing through the circuit.

8. Arduino UNO

   • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0
   • Description: Microcontroller for processing and control.

Wiring Details

Piezo Sensors

• Positive Pins (+)

  • Connected to:
    • Bridge Rectifier (AC input +)
    • Other Piezo Sensors' positive pins

• Negative Pins (-)

  • Connected to:
    • Bridge Rectifier (AC input -)
    • Other Piezo Sensors' negative pins

1000uF/25V Capacitor

• Positive Pin (+)

  • Connected to:
    • Bridge Rectifier (+)
    • DC-DC Boost Converter (VIN+)

• Negative Pin (-)

  • Connected to:
    • Bridge Rectifier (-)
    • DC-DC Boost Converter (VIN-)

18650 Li-ion Battery x 2

• Positive Pin (+)

  • Connected to:
    • Bulb (+)
    • DC-DC Boost Converter (VOUT+)
    • Arduino UNO (Vin)

• Negative Pin (-)

  • Connected to:
    • DC-DC Boost Converter (VOUT-)
    • Current Sensor (2)

Bulb

• Positive Pin (+)

  • Connected to:
    • 18650 Li-ion Battery x 2 (+)

• Negative Pin (-)

  • Connected to:
    • Current Sensor (1)

Bridge Rectifier

• AC input +

  • Connected to:
    • Piezo Sensors' positive pins

• AC input -

  • Connected to:
    • Piezo Sensors' negative pins

• Positive Pin (+)

  • Connected to:
    • 1000uF/25V Capacitor (+)
    • DC-DC Boost Converter (VIN+)

• Negative Pin (-)

  • Connected to:
    • 1000uF/25V Capacitor (-)
    • DC-DC Boost Converter (VIN-)

DC-DC Boost Converter

• VIN+

  • Connected to:
    • Bridge Rectifier (+)
    • 1000uF/25V Capacitor (+)

• VIN-

  • Connected to:
    • Bridge Rectifier (-)
    • 1000uF/25V Capacitor (-)

• VOUT+

  • Connected to:
    • 18650 Li-ion Battery x 2 (+)
    • Arduino UNO (Vin)

• VOUT-

  • Connected to:
    • 18650 Li-ion Battery x 2 (-)
    • Current Sensor (2)

Current Sensor 5A

• Pin 1

  • Connected to:
    • Bulb (-)

• Pin 2

  • Connected to:
    • 18650 Li-ion Battery x 2 (-)
    • DC-DC Boost Converter (VOUT-)

• GND

  • Connected to:
    • Arduino UNO (GND)

• VCC

  • Connected to:
    • Arduino UNO (3.3V)

Arduino UNO

• GND

  • Connected to:
    • 18650 Li-ion Battery x 2 (+)
    • Current Sensor (GND)

• Vin

  • Connected to:
    • 18650 Li-ion Battery x 2 (+)
    • DC-DC Boost Converter (VOUT+)

• 3.3V

  • Connected to:
    • Current Sensor (VCC)

Documented Code

Arduino UNO Code

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

}

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

}

This code is a basic template for the Arduino UNO. The setup function is used to initialize any settings or configurations, and the loop function contains the main code that runs repeatedly.