Circuit Documentation

Summary of the Circuit

This circuit appears to be a solar-powered system with energy storage and voltage regulation capabilities. It includes solar panels for energy harvesting, 18650 Li-ion batteries for energy storage, a voltage regulator to maintain a stable output voltage, and a battery management system (BMS) to protect the batteries. Additionally, the circuit features a 7-segment panel voltmeter for voltage display, LEDs for indication, diodes for current direction control, and fans for cooling. A rocker switch is used to control the power to the fans.

Component List

Solar Panels

• Description: Photovoltaic panels used to convert sunlight into electrical energy.
• Pins: Ground (gnd), Voltage out (vcc)

18650 Li-ion Batteries

• Description: Rechargeable batteries used for energy storage.
• Pins: Negative (-), Positive (+)

7-Segment Panel Voltmeter

• Description: A display used for showing the voltage level.
• Pins: Voltage positive (V+), Voltage negative (V-)

Resistor

• Description: A passive two-terminal electrical component that implements electrical resistance as a circuit element.
• Resistance: 200 Ohms

LED: Two Pin (red)

• Description: A red light-emitting diode used as an indicator.
• Pins: Cathode, Anode

5408 Diode

• Description: A diode used for ensuring current flows in one direction.
• Pins: Cathode, Anode

XL6009 Voltage Regulator

• Description: A DC-DC voltage regulator used to maintain a stable output voltage.
• Pins: Output positive (OUT +), Output negative (OUT -), Input positive (IN +), Input negative (IN -)

Fans

• Description: Cooling devices powered by the circuit.
• Pins: Ground (GND), Voltage in (5V)

Rocker Switch

• Description: A switch used to control the connection of the circuit.
• Pins: Output, Input

BMS 3S

• Description: A battery management system used for protecting the Li-ion batteries.
• Pins: Positive (+), Negative (-)

Wiring Details

Solar Panels

• Ground (gnd) connected to the ground of the circuit.
• Voltage out (vcc) connected to the diode and resistor.

18650 Li-ion Batteries

• Negative (-) connected to the BMS and the 7-segment panel voltmeter.
• Positive (+) connected to the BMS and other batteries in series/parallel as required.

7-Segment Panel Voltmeter

• Voltage positive (V+) connected to the BMS positive.
• Voltage negative (V-) connected to the BMS negative.

Resistor

• One pin connected to the solar panel vcc.
• Other pin connected to the LED anode.

LED: Two Pin (red)

• Cathode connected to the solar panel ground.
• Anode connected to the resistor.

5408 Diode

• Cathode connected to the voltage regulator input.
• Anode connected to the solar panel vcc.

XL6009 Voltage Regulator

• Output positive (OUT +) connected to the rocker switch input.
• Output negative (OUT -) connected to the ground of the fans.
• Input positive (IN +) connected to the diode.
• Input negative (IN -) connected to the ground of the circuit.

Fans

• Ground (GND) connected to the voltage regulator output negative.
• Voltage in (5V) connected to the rocker switch output.

Rocker Switch

• Output connected to the fans' voltage in.
• Input connected to the voltage regulator output positive.

BMS 3S

• Positive (+) connected to the batteries and the 7-segment panel voltmeter.
• Negative (-) connected to the batteries and the 7-segment panel voltmeter.

Documented Code

No microcontroller code has been provided for this circuit. If there is a need for control logic or data processing, a microcontroller or other programmable device would be included, and the corresponding code would be documented in this section.