Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to interface various sensors and a display with an ESP32 microcontroller. The circuit includes power management components, a solar panel for energy harvesting, and several environmental sensors. The ESP32 microcontroller is programmed to display messages on a Nokia 5110 LCD.

Component List

1. TP4056

   • Description: Lithium-ion battery charger module.
   • Pins: OUT-, B-, B+, OUT+, IN-, IN+

2. Rocker Switch

   • Description: A simple on/off switch.
   • Pins: 1, 2

3. Solar Panel

   • Description: Solar energy harvesting module.
   • Pins: +, -

4. DS18B20 1-Wire Temperature Sensor Probe Cable

   • Description: Temperature sensor with a 1-Wire interface.
   • Pins: shield, GND, DQ, VDD

5. Modulo Sensor Turbidez/ Turbidity

   • Description: Turbidity sensor module.
   • Pins: g, A, D, V, 1, 2, 3, 4

6. Sonda Sensor Turbidez / Turbidity

   • Description: Turbidity sensor probe.
   • Pins: S, -, +

7. Sonda Sensor TDS

   • Description: Total Dissolved Solids (TDS) sensor probe.
   • Pins: +, -

8. Sonda Sensor PH

   • Description: pH sensor probe.
   • Pins: SEN

9. Modulo Sensor TDS

   • Description: TDS sensor module.
   • Pins: A, -, +

10. Modulo Sensor Oxigeno Disuelto / Dissolved Oxygen

    • Description: Dissolved oxygen sensor module.
    • Pins: A, +, -, SON

11. Sonda Sensor Oxigeno Disuelto / Dissolved Oxygen

    • Description: Dissolved oxygen sensor probe.
    • Pins: SON

12. Modulo Sensor Conductividad Electrica / Electrical Conductivity

    • Description: Electrical conductivity sensor module.
    • Pins: A, +, -, SEN

13. Sonda Sensor Conductividad Electrica / Electrical Conductivity

    • Description: Electrical conductivity sensor probe.
    • Pins: SON

14. Nokia 5110 LCD

    • Description: LCD display module.
    • Pins: DN(MOSI), D/C, RST, SCE, GND, VCC, LED, SCLK, DN(MODI) (out), D/C (out), RST (out), SCE (out), GND (out), VCC (out), LED (out), SCLK (out)

15. GPS NEO 6M

    • Description: GPS module.
    • Pins: VCC, RX, TX, GND

16. ESP32 - Expansion Board

    • Description: Microcontroller with various I/O pins.
    • Pins: +, -, EN, VP, VN, D34, D32, D33, D25, D26, D27, D14, D12, D13, D23, D22, TX0, RX0, D21, D19, D18, D5, D17, D16, D4, D2, D15, VCC, G, 5V, 3.3V, V

17. Module DS18N20

    • Description: DS18B20 temperature sensor module.
    • Pins: GND, VCC, DAT

18. 18650 Li-Ion

    • Description: Lithium-ion battery.
    • Pins: Positive, Negative

Wiring Details

TP4056

• IN- connected to + of Solar Panel
• IN+ connected to - of Solar Panel
• OUT- connected to - of ESP32 - Expansion Board
• OUT+ connected to 1 of Rocker Switch
• B- connected to Negative of 18650 Li-Ion
• B+ connected to Positive of 18650 Li-Ion

Rocker Switch

• 1 connected to OUT+ of TP4056
• 2 connected to + of ESP32 - Expansion Board

Solar Panel

• + connected to IN- of TP4056
• - connected to IN+ of TP4056

DS18B20 1-Wire Temperature Sensor Probe Cable

• shield connected to DAT of Module DS18N20
• GND connected to GND of Module DS18N20
• VDD connected to VCC of Module DS18N20

Modulo Sensor Turbidez/ Turbidity

• g connected to G of ESP32 - Expansion Board
• A connected to D22 of ESP32 - Expansion Board
• V connected to V of ESP32 - Expansion Board
• 1 connected to + of Sonda Sensor Turbidez / Turbidity
• 2 connected to - of Sonda Sensor Turbidez / Turbidity
• 3 connected to S of Sonda Sensor Turbidez / Turbidity

Sonda Sensor Turbidez / Turbidity

• + connected to 1 of Modulo Sensor Turbidez/ Turbidity
• - connected to 2 of Modulo Sensor Turbidez/ Turbidity
• S connected to 3 of Modulo Sensor Turbidez/ Turbidity

Sonda Sensor TDS

• + connected to + of Modulo Sensor TDS
• - connected to - of Modulo Sensor TDS

Sonda Sensor PH

• SEN connected to SEN of Modulo Sensor PH

Modulo Sensor TDS

• A connected to D23 of ESP32 - Expansion Board
• - connected to G of ESP32 - Expansion Board
• + connected to V of ESP32 - Expansion Board

Modulo Sensor Oxigeno Disuelto / Dissolved Oxygen

• A connected to D18 of ESP32 - Expansion Board
• + connected to V of ESP32 - Expansion Board
• - connected to G of ESP32 - Expansion Board
• SON connected to SON of Sonda Sensor Oxigeno Disuelto / Dissolved Oxygen

Sonda Sensor Oxigeno Disuelto / Dissolved Oxygen

• SON connected to SON of Modulo Sensor Oxigeno Disuelto / Dissolved Oxygen

Modulo Sensor Conductividad Electrica / Electrical Conductivity

• A connected to D5 of ESP32 - Expansion Board
• + connected to V of ESP32 - Expansion Board
• - connected to G of ESP32 - Expansion Board
• SEN connected to SON of Sonda Sensor Conductividad Electrica / Electrical Conductivity

Sonda Sensor Conductividad Electrica / Electrical Conductivity

• SON connected to SEN of Modulo Sensor Conductividad Electrica / Electrical Conductivity

Nokia 5110 LCD

• DN(MODI) (out) connected to D27 of ESP32 - Expansion Board
• D/C (out) connected to D14 of ESP32 - Expansion Board
• RST (out) connected to D12 of ESP32 - Expansion Board
• SCE (out) connected to D13 of ESP32 - Expansion Board
• GND (out) connected to G of ESP32 - Expansion Board
• VCC (out) connected to V of ESP32 - Expansion Board
• LED (out) connected to D25 of ESP32 - Expansion Board
• SCLK (out) connected to D26 of ESP32 - Expansion Board

GPS NEO 6M

• VCC connected to V of ESP32 - Expansion Board
• RX connected to D17 of ESP32 - Expansion Board
• TX connected to D16 of ESP32 - Expansion Board
• GND connected to G of ESP32 - Expansion Board

ESP32 - Expansion Board

• - connected to OUT- of TP4056
• + connected to 2 of Rocker Switch
• V connected to VCC of GPS NEO 6M, V of Modulo Sensor Turbidez/ Turbidity, V of Modulo Sensor TDS, V of **Modulo Sensor Oxigeno Disuelto / Diss