Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano microcontroller, a 16x2 LCD display, a Li-ion battery, a potentiometer, a bridge rectifier, various capacitors and resistors, a voltage sensor, a boost converter, and a voltage regulator. The circuit is designed to power the Arduino Nano and display information on the LCD screen, with additional components for voltage regulation and sensing.

Component List

Arduino Nano

• Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
• Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

16x2 LCD

• Description: A 16x2 character LCD display.
• Pins: VSS, VDD, V0, RS, RW, E, D1, D0, D2, D3, D4, D6, D5, D7, A, K

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

• Description: A rechargeable lithium-ion battery.
• Pins: +, -

Potentiometer

• Description: A variable resistor used to adjust voltage.
• Pins: GND, Output, VCC

Bridge Rectifier - 1N4007

• Description: A diode bridge used for converting AC to DC.
• Pins: 1 INPUT, 2 INPUT, + PIN, - PIN

Ceramic Capacitor (0.0001 Farads)

• Description: A capacitor used for filtering and smoothing.
• Pins: pin0, pin1

Resistor (100k Ohms)

• Description: A resistor used to limit current.
• Pins: pin1, pin2

Voltage Sensor DC 25V

• Description: A sensor used to measure voltage.
• Pins: +, -, output, gnd, vcc

XL6009E1 Boost Converter

• Description: A DC-DC boost converter used to step up voltage.
• Pins: IN+, IN-, OUT-, OUT+

Ceramic Capacitor (0.001 Farads)

• Description: A capacitor used for filtering and smoothing.
• Pins: pin0, pin1

7808 Voltage Regulator

• Description: A voltage regulator used to provide a stable 8V output.
• Pins: INPUT, GND, OUTPUT

Ceramic Capacitor (0.0000001 Farads)

• Description: A capacitor used for filtering and smoothing.
• Pins: pin0, pin1

Wiring Details

Arduino Nano

• GND: Connected to GND of Li-ion battery, XL6009E1 Boost Converter, 7808, Potentiometer, 16x2 LCD (VSS, K, RW), Voltage Sensor DC 25V
• D7: Connected to RS of 16x2 LCD
• D8: Connected to E of 16x2 LCD
• D9: Connected to D4 of 16x2 LCD
• D10: Connected to D5 of 16x2 LCD
• D11/MOSI: Connected to D6 of 16x2 LCD
• D12/MISO: Connected to D7 of 16x2 LCD
• VIN: Connected to pin1 of Ceramic Capacitor (0.0000001 Farads)
• 5V: Connected to VCC of Potentiometer, VDD and A of 16x2 LCD, vcc of Voltage Sensor DC 25V
• A0: Connected to output of Voltage Sensor DC 25V

16x2 LCD

• VSS: Connected to GND of Arduino Nano
• VDD: Connected to 5V of Arduino Nano
• V0: Connected to Output of Potentiometer
• RS: Connected to D7 of Arduino Nano
• RW: Connected to GND of Arduino Nano
• E: Connected to D8 of Arduino Nano
• D4: Connected to D9 of Arduino Nano
• D5: Connected to D10 of Arduino Nano
• D6: Connected to D11/MOSI of Arduino Nano
• D7: Connected to D12/MISO of Arduino Nano
• A: Connected to 5V of Arduino Nano
• K: Connected to GND of Arduino Nano

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

• -: Connected to OUT- and IN- of XL6009E1 Boost Converter, GND of 7808, GND of Arduino Nano, GND of Potentiometer, VSS, K, RW of 16x2 LCD, gnd of Voltage Sensor DC 25V
• +: Connected to OUT+ of XL6009E1 Boost Converter, INPUT of 7808

Potentiometer

• GND: Connected to GND of Arduino Nano
• Output: Connected to V0 of 16x2 LCD
• VCC: Connected to 5V of Arduino Nano

Bridge Rectifier - 1N4007

• - PIN: Connected to IN+ of XL6009E1 Boost Converter, pin1 of Ceramic Capacitor (0.001 Farads), pin1 of Ceramic Capacitor (0.0001 Farads), pin1 of Resistor, + of Voltage Sensor DC 25V
• + PIN: Connected to pin0 of Ceramic Capacitor (0.001 Farads), pin0 of Ceramic Capacitor (0.0001 Farads), pin2 of Resistor, - of Voltage Sensor DC 25V

Ceramic Capacitor (0.0001 Farads)

• pin0: Connected to + PIN of Bridge Rectifier
• pin1: Connected to - PIN of Bridge Rectifier, IN+ of XL6009E1 Boost Converter, pin1 of Ceramic Capacitor (0.001 Farads), pin1 of Resistor, + of Voltage Sensor DC 25V

Resistor (100k Ohms)

• pin1: Connected to - PIN of Bridge Rectifier, IN+ of XL6009E1 Boost Converter, pin1 of Ceramic Capacitor (0.001 Farads), pin1 of Ceramic Capacitor (0.0001 Farads), + of Voltage Sensor DC 25V
• pin2: Connected to + PIN of Bridge Rectifier, pin0 of Ceramic Capacitor (0.001 Farads), pin0 of Ceramic Capacitor (0.0001 Farads), - of Voltage Sensor DC 25V

Voltage Sensor DC 25V

• +: Connected to - PIN of Bridge Rectifier, IN+ of XL6009E1 Boost Converter, pin1 of Ceramic Capacitor (0.001 Farads), pin1 of Ceramic Capacitor (0.0001 Farads), pin1 of Resistor
• -: Connected to + PIN of Bridge Rectifier, pin0 of Ceramic Capacitor (0.001 Farads), pin0 of Ceramic Capacitor (0.0001 Farads), pin2 of Resistor
• output: Connected to A0 of Arduino Nano
• gnd: Connected to GND of Arduino Nano
• vcc: Connected to 5V of Arduino Nano

XL6009E1 Boost Converter

• IN+: Connected to - PIN of Bridge Rectifier, pin1 of Ceramic Capacitor (0.001 Farads), pin1 of Ceramic Capacitor (0.0001 Farads), pin1 of Resistor, + of Voltage Sensor DC 25V
• IN-: Connected to - of Li-ion battery, OUT- of XL6009E1 Boost Converter, GND of 7808, GND of Arduino Nano, GND of Potentiometer, VSS, K, RW of 16x2 LCD, gnd of Voltage Sensor DC 25V
• OUT-: Connected to - of Li-ion battery, IN- of XL6009E1 Boost Converter, GND of 7808, GND of Arduino Nano, GND of Potentiometer, VSS, K, RW of 16x2 LCD, gnd of Voltage Sensor DC 25V
• OUT+: Connected to + of Li-ion battery, INPUT of 7808

Ceramic Capacitor (0.001 Farads)

• pin0: Connected to + PIN of Bridge Rectifier, pin0 of Ceramic Capacitor (0.0001 Farads), pin2 of Resistor, - of Voltage Sensor DC 25V
• pin1: Connected to - PIN of Bridge Rectifier, IN+ of XL6009E1 Boost Converter, pin1 of Ceramic Capacitor (0.0001 Farads), pin1 of Resistor, + of Voltage Sensor DC 25V

7808 Voltage Regulator

• INPUT: Connected to + of Li-ion