Circuit Documentation

Summary

This document provides a detailed overview of a solar-powered system that includes a solar panel, a charge controller, a 12V AGM battery, a linear actuator, a voltage sensor, an ESP32 microcontroller, an IR sensor, a BME680 environmental sensor, and an L298N DC motor driver. The system is designed to harness solar energy, store it in a battery, and use it to power various components, including a linear actuator and sensors.

Component List

1. Solar Panel

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

2. MPPT 12V Charge Controller

   • Description: Manages the charging of the 12V AGM battery from the solar panel.
   • Pins: +, -

3. 12V AGM Battery

   • Description: Stores electrical energy for later use.
   • Pins: +, -

4. Linear Actuator

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

5. Voltage Sensor

   • Description: Measures the voltage of the system.
   • Pins: GND, VCC, S, +, -

6. Xiao ESP32C3

   • Description: Microcontroller for controlling various components and sensors.
   • Pins: GPIO2/LRC/A0/D0, GPIO3/BCLK/A1/D1, GPIO4/DIN/A2/D2, GPIO5/A3/D3, GPIO6/SDA/D4, GPIO7/SCL/D5, GPIO21/TX/D6, VUSB/5V, GND, 3V3, D10/MOSI/GPIO10, D9/MISO/GPIO9, D8/SCK/GPIO8, D7/RX/GPIO20, 3.7V BATT+, 3.7V BATT-, Type C

7. BME680

   • Description: Environmental sensor for measuring temperature, humidity, pressure, and gas.
   • Pins: VCC, GND, SCL, SDA, SDO, CS

8. L298N DC Motor Driver

   • Description: Drives the linear actuator.
   • Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

9. E18-D80NK IR Sensor

   • Description: Infrared sensor for object detection.
   • Pins: 5V Brown, OUT Black, GND Blue

10. Pushbutton

    • Description: User input button.
    • Pins: Pin 2, Pin 1, Pin 3, Pin 4

Wiring Details

Solar Panel

• + connected to + of MPPT 12V Charge Controller
• - connected to - of MPPT 12V Charge Controller

MPPT 12V Charge Controller

• + connected to + of Solar Panel
• - connected to - of Solar Panel
• + connected to VCC of Voltage Sensor
• + connected to + of 12V AGM Battery
• + connected to 12V of L298N DC Motor Driver
• - connected to - of Voltage Sensor
• - connected to - of 12V AGM Battery

12V AGM Battery

• + connected to VCC of Voltage Sensor
• + connected to + of MPPT 12V Charge Controller
• + connected to 12V of L298N DC Motor Driver
• - connected to - of Voltage Sensor
• - connected to - of MPPT 12V Charge Controller

Linear Actuator

• + connected to OUT2 of L298N DC Motor Driver
• - connected to OUT1 of L298N DC Motor Driver

Voltage Sensor

• VCC connected to + of 12V AGM Battery
• VCC connected to + of MPPT 12V Charge Controller
• VCC connected to 12V of L298N DC Motor Driver
• - connected to GND of Xiao ESP32C3
• - connected to GND Blue of E18-D80NK IR Sensor
• - connected to GND of L298N DC Motor Driver
• - connected to GND Blue of E18-D80NK IR Sensor
• - connected to GND of BME680
• S connected to GPIO2/LRC/A0/D0 of Xiao ESP32C3

Xiao ESP32C3

• GND connected to - of Voltage Sensor
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of L298N DC Motor Driver
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of BME680
• VUSB/5V connected to 5V Brown of E18-D80NK IR Sensor
• VUSB/5V connected to 5V of L298N DC Motor Driver
• VUSB/5V connected to 5V Brown of E18-D80NK IR Sensor
• GPIO5/A3/D3 connected to IN1 of L298N DC Motor Driver
• GPIO4/DIN/A2/D2 connected to IN2 of L298N DC Motor Driver
• GPIO6/SDA/D4 connected to SDA of BME680
• GPIO7/SCL/D5 connected to SCL of BME680
• 3V3 connected to VCC of BME680
• D10/MOSI/GPIO10 connected to OUT Black of E18-D80NK IR Sensor
• D9/MISO/GPIO9 connected to OUT Black of E18-D80NK IR Sensor

BME680

• GND connected to - of Voltage Sensor
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of L298N DC Motor Driver
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of BME680
• SDA connected to GPIO6/SDA/D4 of Xiao ESP32C3
• SCL connected to GPIO7/SCL/D5 of Xiao ESP32C3
• VCC connected to 3V3 of Xiao ESP32C3

L298N DC Motor Driver

• OUT1 connected to - of Linear Actuator
• OUT2 connected to + of Linear Actuator
• 12V connected to VCC of Voltage Sensor
• 12V connected to + of 12V AGM Battery
• 12V connected to + of MPPT 12V Charge Controller
• GND connected to - of Voltage Sensor
• GND connected to GND of Xiao ESP32C3
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of L298N DC Motor Driver
• GND connected to GND Blue of E18-D80NK IR Sensor
• GND connected to GND of BME680
• 5V connected to VUSB/5V of Xiao ESP32C3
• 5V connected to 5V Brown of E18-D80NK IR Sensor
• IN1 connected to GPIO5/A3/D3 of Xiao ESP32C3
• IN2 connected to GPIO4/DIN/A2/D2 of Xiao ESP32C3

E18-D80NK IR Sensor

• 5V Brown connected to VUSB/5V of Xiao ESP32C3
• 5V Brown connected to 5V of L298N DC Motor Driver
• OUT Black connected to D10/MOSI/GPIO10 of Xiao ESP32C3
• OUT Black connected to D9/MISO/GPIO9 of Xiao ESP32C3
• GND Blue connected to - of Voltage Sensor
• GND Blue connected to GND of Xiao ESP32C3
• GND Blue connected to GND of L298N DC Motor Driver