Circuit Documentation
Summary
This document provides a detailed overview of a solar-powered environmental monitoring system. The system includes a solar panel, a charge controller, a Li-ion battery, a D1 mini microcontroller, a DHT11 temperature and humidity sensor, and a capacitive soil moisture sensor. The solar panel charges the battery through the charge controller, which also powers the D1 mini microcontroller. The microcontroller collects data from the DHT11 sensor and the soil moisture sensor.
Component List
Solar Panel
- Description: Converts sunlight into electrical energy.
- Pins: +, -
DHT11 Temperature and Humidity Sensor
- Description: Measures temperature and humidity.
- Pins: VCC, GND, DATA
DFRobot Capacitive Soil Moisture Sensor (V1.0)
- Description: Measures soil moisture levels.
- Pins: A, VCC, GND
Diode
- Description: Ensures current flows in one direction.
- Pins: Cathode, Anode
D1 Mini Stacked with Power Adapter
- Description: Microcontroller for data collection and processing.
- Pins: GND, VIN (7-24V), 5V, D4, D3, D2, D1, RX, TX, 3V3, D8, D7, D6, D5, D0, A0, RST, Power Plug 7-24V
CN3065 Solar Charge Controller
- Description: Manages charging of the Li-ion battery from the solar panel.
- Pins: SOLAR +, SOLAR -, BAT +, SYS -, SYS +, BAT -
Li-ion Battery 18650-2000mAh 3.7V 7.4WH
- Description: Stores electrical energy for powering the system.
- Pins: +, -
Wiring Details
Solar Panel
- + connected to SOLAR + of CN3065 Solar Charge Controller
- - connected to SOLAR - of CN3065 Solar Charge Controller
DHT11 Temperature and Humidity Sensor
- VCC connected to 5V of D1 Mini
- GND connected to GND of D1 Mini
- DATA connected to D0 of D1 Mini
DFRobot Capacitive Soil Moisture Sensor (V1.0)
- A connected to A0 of D1 Mini
- VCC connected to 5V of D1 Mini
- GND connected to GND of D1 Mini
Diode
- Cathode connected to BAT + of CN3065 Solar Charge Controller
- Anode connected to + of Li-ion Battery
D1 Mini Stacked with Power Adapter
- GND connected to SYS - of CN3065 Solar Charge Controller
- VIN (7-24V) connected to SYS + of CN3065 Solar Charge Controller
- 5V connected to VCC of DHT11 and DFRobot Capacitive Soil Moisture Sensor
- GND connected to GND of DHT11 and DFRobot Capacitive Soil Moisture Sensor
- D0 connected to DATA of DHT11
- A0 connected to A of DFRobot Capacitive Soil Moisture Sensor
CN3065 Solar Charge Controller
- SOLAR + connected to + of Solar Panel
- SOLAR - connected to - of Solar Panel
- BAT + connected to Cathode of Diode
- SYS - connected to GND of D1 Mini
- SYS + connected to VIN (7-24V) of D1 Mini
- BAT - connected to - of Li-ion Battery
Li-ion Battery 18650-2000mAh 3.7V 7.4WH
- + connected to Anode of Diode
- - connected to BAT - of CN3065 Solar Charge Controller
Code
No code is provided for this circuit.