Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, a humidity and temperature sensor (RHT03), an NRF24L01 wireless module, a capacitive soil moisture sensor, and a power supply. The circuit is designed to collect environmental data and transmit it wirelessly.

Component List

1. ESP32-WROOM-32UE

   • Description: A powerful microcontroller with Wi-Fi and Bluetooth capabilities.
   • Pins: 3v3, EN, VP, VN, 34, 35, 32, 33, 25, 26, 14, 12, GND, 13, D2, D3, 5V, 23, 22, TX, RX, 21, 19, 18, 5, 17, 16, 4, 0, 2, 15, D1, D0, CKL

2. Humidity and Temperature Sensor (RHT03)

   • Description: A sensor used to measure humidity and temperature.
   • Pins: Vcc, Data-signal, GND 1, GND 2

3. NRF24L01

   • Description: A wireless transceiver module for communication.
   • Pins: IRQ (not used), MOSI, CSN, VCC (3V), GND, CE, SCK, MISO

4. POWER

   • Description: Power supply for the circuit.
   • Pins: +, -

5. DFRobot Capacitive Soil Moisture Sensor (V1.0)

   • Description: A sensor used to measure soil moisture levels.
   • Pins: A, VCC, GND

6. Comment

   • Description: Placeholder for comments in the circuit design.
   • Pins: None

Wiring Details

ESP32-WROOM-32UE

• 3v3 is connected to:

  • VCC (3V) of NRF24L01
  • VCC of DFRobot Capacitive Soil Moisture Sensor (V1.0)
  • Vcc of Humidity and Temperature Sensor (RHT03)

• 35 is connected to:

  • A of DFRobot Capacitive Soil Moisture Sensor (V1.0)

• 32 is connected to:

  • Data-signal of Humidity and Temperature Sensor (RHT03)

• GND is connected to:

  • • of POWER
  • GND of DFRobot Capacitive Soil Moisture Sensor (V1.0)
  • GND 1 of Humidity and Temperature Sensor (RHT03)
  • GND of NRF24L01

• 5V is connected to:

  • • of POWER

• 23 is connected to:

  • MOSI of NRF24L01

• 19 is connected to:

  • MISO of NRF24L01

• 18 is connected to:

  • SCK of NRF24L01

• 5 is connected to:

  • CSN of NRF24L01

• 4 is connected to:

  • CE of NRF24L01

Humidity and Temperature Sensor (RHT03)

• Vcc is connected to:

  • 3v3 of ESP32-WROOM-32UE

• Data-signal is connected to:

  • 32 of ESP32-WROOM-32UE

• GND 1 is connected to:

  • GND of ESP32-WROOM-32UE

NRF24L01

• VCC (3V) is connected to:

  • 3v3 of ESP32-WROOM-32UE

• MOSI is connected to:

  • 23 of ESP32-WROOM-32UE

• CSN is connected to:

  • 5 of ESP32-WROOM-32UE

• GND is connected to:

  • GND of ESP32-WROOM-32UE

• CE is connected to:

  • 4 of ESP32-WROOM-32UE

• SCK is connected to:

  • 18 of ESP32-WROOM-32UE

• MISO is connected to:

  • 19 of ESP32-WROOM-32UE

POWER

• + is connected to:

  • 5V of ESP32-WROOM-32UE

• - is connected to:

  • GND of ESP32-WROOM-32UE

DFRobot Capacitive Soil Moisture Sensor (V1.0)

• VCC is connected to:

  • 3v3 of ESP32-WROOM-32UE

• A is connected to:

  • 35 of ESP32-WROOM-32UE

• GND is connected to:

  • GND of ESP32-WROOM-32UE

Code

No code is provided for this circuit.