Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller, a GPS module, a micro SD card module, a DHT11 humidity and temperature sensor, a DC buck step-down converter, a DIN rail mount power supply, a DC jack, and a DC power source. The circuit is designed to interface these components for various functionalities such as data logging, environmental sensing, and GPS tracking.

Component List

1. Esp32 on Baseboard

   • Description: A versatile microcontroller with multiple GPIO pins.
   • Pins: GPIO23, GPIO22, GPIO1/TX, GPIO3/RX, GPIO21, GPIO19, GPIO18, GPIO5, GPIO17, GPIO16, GPIO4, GPIO0, GPIO2, GPIO15, SD1, SD0, CLK, V, G, GPIO36, GPIO39, GPIO34, GPIO35, GPIO32, GPIO33, GPIO25, GPIO26, GPIO27, GPIO14, GPIO12, GPIO13, SD2, SD3, GND, 5V, 3V, TX, RX, VCC, D22, D21

2. Grove GPS

   • Description: A GPS module for location tracking.
   • Pins: Tx, Rx, Vcc, GND

3. Micro SD Card Module

   • Description: A module for interfacing with micro SD cards for data storage.
   • Pins: cs, sck, mosi, miso, vcc, gnd

4. DHT11 Humidity and Temperature Sensor

   • Description: A sensor for measuring humidity and temperature.
   • Pins: VDD, DATA, NULL, GND

5. XL4015 5A DC Buck Step-down

   • Description: A DC-DC converter for stepping down voltage.
   • Pins: Output +, Output -, Input +, Input -

6. DIN RAIL MOUNT 26.4W POWER SUPPLY

   • Description: A power supply unit for providing stable voltage.
   • Pins: V+, V-, N, L

7. DC Jack

   • Description: A jack for connecting DC power.
   • Pins: V, GND

8. DC Power Source

   • Description: A source of DC power.
   • Pins: Ground, Positive

Wiring Details

Esp32 on Baseboard

• GPIO23 connected to Micro SD Card Module mosi
• GPIO19 connected to Micro SD Card Module miso
• GPIO18 connected to Micro SD Card Module sck
• GPIO5 connected to Micro SD Card Module cs
• GPIO17 connected to Grove GPS Rx
• GPIO16 connected to Grove GPS Tx
• GPIO4 connected to DHT11 Humidity and Temperature Sensor DATA
• V connected to Grove GPS Vcc
• G connected to Grove GPS GND
• GND connected to Micro SD Card Module gnd
• GND connected to DHT11 Humidity and Temperature Sensor GND
• 5V connected to Micro SD Card Module vcc
• 3V connected to DHT11 Humidity and Temperature Sensor VDD

Grove GPS

• Tx connected to Esp32 on Baseboard GPIO16
• Rx connected to Esp32 on Baseboard GPIO17
• Vcc connected to Esp32 on Baseboard V
• GND connected to Esp32 on Baseboard G

Micro SD Card Module

• mosi connected to Esp32 on Baseboard GPIO23
• miso connected to Esp32 on Baseboard GPIO19
• sck connected to Esp32 on Baseboard GPIO18
• cs connected to Esp32 on Baseboard GPIO5
• vcc connected to Esp32 on Baseboard 5V
• gnd connected to Esp32 on Baseboard GND

DHT11 Humidity and Temperature Sensor

• VDD connected to Esp32 on Baseboard 3V
• DATA connected to Esp32 on Baseboard GPIO4
• GND connected to Esp32 on Baseboard GND

XL4015 5A DC Buck Step-down

• Output + connected to DC Jack V
• Output - connected to DC Jack GND
• Input + connected to DIN RAIL MOUNT 26.4W POWER SUPPLY V+
• Input - connected to DIN RAIL MOUNT 26.4W POWER SUPPLY V-

DIN RAIL MOUNT 26.4W POWER SUPPLY

• V+ connected to XL4015 5A DC Buck Step-down Input +
• V- connected to XL4015 5A DC Buck Step-down Input -
• N connected to DC Power Source Ground
• L connected to DC Power Source Positive

DC Jack

• V connected to XL4015 5A DC Buck Step-down Output +
• GND connected to XL4015 5A DC Buck Step-down Output -

DC Power Source

• Ground connected to DIN RAIL MOUNT 26.4W POWER SUPPLY N
• Positive connected to DIN RAIL MOUNT 26.4W POWER SUPPLY L

Code

No code is provided for this circuit.