Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various components such as LEDs, switches, a volt/ammeter, a piezo buzzer, a TP4056 battery charger, and a Li-ion battery. The circuit is designed to monitor voltage and current, control power flow, and provide visual and auditory feedback.

Component List

1. Mini Digital Volt/Ammeter

   • Pins: Gnd, Vin, Vread, Vsupply
   • Description: Measures voltage and current in the circuit.
   • Purpose: To monitor the voltage and current levels.

2. Piezo Buzzer

   • Pins: pin 1, pin 2
   • Description: Emits sound when powered.
   • Purpose: To provide auditory feedback.

3. Rocker Switch (SPST)

   • Pins: 1, 2
   • Description: Single Pole Single Throw switch.
   • Purpose: To control the power flow in the circuit.

4. Red Panel Mount 4mm Banana Socket

   • Pins: Red_Pin
   • Description: Red banana socket for panel mounting.
   • Purpose: To provide a connection point for external components.

5. Black Panel Mount 4mm Banana Socket

   • Pins: Black_Pin
   • Description: Black banana socket for panel mounting.
   • Purpose: To provide a connection point for external components.

6. Resistor

   • Pins: pin1, pin2
   • Description: 220 Ohms resistor.
   • Purpose: To limit current in the circuit.

7. DPDT Switch

   • Pins: 1, 2, 3, 4, 5, 6
   • Description: Double Pole Double Throw switch.
   • Purpose: To control multiple circuit paths.

8. TP4056

   • Pins: OUT-, B-, B+, OUT+, IN-, IN+
   • Description: Lithium-ion battery charger module.
   • Purpose: To charge the Li-ion battery.

9. Li-ion battery 18650-2000mAh 3.7V 7.4WH

   • Pins: +, -
   • Description: Rechargeable lithium-ion battery.
   • Purpose: To provide power to the circuit.

10. Diode

    • Pins: cathode, anode
    • Description: Standard diode.
    • Purpose: To allow current to flow in one direction.

11. LED: Two Pin (green)

    • Pins: cathode, anode
    • Description: Green LED.
    • Purpose: To provide visual feedback.

12. LED: Two Pin (red)

    • Pins: cathode, anode
    • Description: Red LED.
    • Purpose: To provide visual feedback.

Wiring Details

Mini Digital Volt/Ammeter

• Gnd: Connected to Black Panel Mount 4mm Banana Socket (Black_Pin), LED (red) cathode, and TP4056 (OUT-).
• Vin: Connected to DPDT Switch (pin 6).
• Vread: Connected to DPDT Switch (pin 2) and Diode (cathode).
• Vsupply: Connected to Rocker Switch (SPST) (pin 1).

Piezo Buzzer

• pin 1: Connected to LED (green) anode, DPDT Switch (pin 3), TP4056 (OUT+), and Rocker Switch (SPST) (pin 2).
• pin 2: Connected to LED (green) cathode and Diode (anode).

Rocker Switch (SPST)

• 1: Connected to Mini Digital Volt/Ammeter (Vsupply).
• 2: Connected to LED (green) anode, DPDT Switch (pin 3), TP4056 (OUT+), and Piezo Buzzer (pin 1).

Red Panel Mount 4mm Banana Socket

• Red_Pin: Connected to DPDT Switch (pin 4).

Black Panel Mount 4mm Banana Socket

• Black_Pin: Connected to Mini Digital Volt/Ammeter (Gnd), LED (red) cathode, and TP4056 (OUT-).

Resistor

• pin1: Connected to DPDT Switch (pin 5).
• pin2: Connected to LED (red) anode.

DPDT Switch

• 1: Not connected.
• 2: Connected to Mini Digital Volt/Ammeter (Vread) and Diode (cathode).
• 3: Connected to LED (green) anode, TP4056 (OUT+), Rocker Switch (SPST) (pin 2), and Piezo Buzzer (pin 1).
• 4: Connected to Red Panel Mount 4mm Banana Socket (Red_Pin).
• 5: Connected to Resistor (pin1).
• 6: Connected to Mini Digital Volt/Ammeter (Vin).

TP4056

• OUT-: Connected to Mini Digital Volt/Ammeter (Gnd), Black Panel Mount 4mm Banana Socket (Black_Pin), and LED (red) cathode.
• B-: Connected to Li-ion battery (pin -).
• B+: Connected to Li-ion battery (pin +).
• OUT+: Connected to LED (green) anode, DPDT Switch (pin 3), Rocker Switch (SPST) (pin 2), and Piezo Buzzer (pin 1).
• IN-: Not connected.
• IN+: Not connected.

Li-ion battery 18650-2000mAh 3.7V 7.4WH

• -: Connected to TP4056 (B-).
• +: Connected to TP4056 (B+).

Diode

• cathode: Connected to Mini Digital Volt/Ammeter (Vread) and DPDT Switch (pin 2).
• anode: Connected to LED (green) cathode and Piezo Buzzer (pin 2).

LED: Two Pin (green)

• cathode: Connected to Diode (anode) and Piezo Buzzer (pin 2).
• anode: Connected to DPDT Switch (pin 3), TP4056 (OUT+), Rocker Switch (SPST) (pin 2), and Piezo Buzzer (pin 1).

LED: Two Pin (red)

• cathode: Connected to Mini Digital Volt/Ammeter (Gnd), Black Panel Mount 4mm Banana Socket (Black_Pin), and TP4056 (OUT-).
• anode: Connected to Resistor (pin2).

Code

No microcontroller code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including a detailed list of components and their wiring connections. This should serve as a useful reference for understanding and troubleshooting the circuit.