Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a TFT LCD Display, an RTC module, an ESP32 microcontroller, a Type-C Power Bank Module, and a 3.7V battery. The circuit is designed to power the components and facilitate communication between the ESP32 microcontroller, the TFT LCD Display, and the RTC module.

Component List

1. TFT LCD Display ST7735S

   • Description: A color TFT LCD display module with an ST7735S driver.
   • Pins: Vcc, GND, CS, RESET, A0, SDA, SCK, LED

2. RTC DS13072

   • Description: A Real-Time Clock (RTC) module for keeping track of time.
   • Pins: DS, SCL, SDA, VCC, GND, SQ, BAT

3. ESP32 (30 pin)

   • Description: A powerful microcontroller with built-in Wi-Fi and Bluetooth capabilities.
   • Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3

4. Type-C Power Bank Module

   • Description: A module to provide power from a Type-C power bank.
   • Pins: Gnd, +Ve (Bat), +5v

5. 3.7V Battery

   • Description: A rechargeable 3.7V lithium battery.
   • Pins: +, -

Wiring Details

TFT LCD Display ST7735S

• Vcc connected to +5v of the Type-C Power Bank Module
• GND connected to Gnd of the Type-C Power Bank Module and GND of the ESP32
• CS connected to D22 of the ESP32
• RESET connected to D21 of the ESP32
• A0 connected to D19 of the ESP32
• SDA connected to D18 of the ESP32
• SCK connected to D5 of the ESP32
• LED connected to +5v of the Type-C Power Bank Module

RTC DS13072

• SCL connected to D4 of the ESP32
• SDA connected to D2 of the ESP32
• GND connected to GND of the ESP32
• VCC connected to 3V3 of the ESP32

ESP32 (30 pin)

• GND connected to Gnd of the Type-C Power Bank Module and GND of the TFT LCD Display and RTC DS13072
• Vin connected to +5v of the Type-C Power Bank Module
• D22 connected to CS of the TFT LCD Display
• D21 connected to RESET of the TFT LCD Display
• D19 connected to A0 of the TFT LCD Display
• D18 connected to SDA of the TFT LCD Display
• D5 connected to SCK of the TFT LCD Display
• D4 connected to SCL of the RTC DS13072
• D2 connected to SDA of the RTC DS13072
• 3V3 connected to VCC of the RTC DS13072

Type-C Power Bank Module

• Gnd connected to GND of the TFT LCD Display, GND of the ESP32, and - of the 3.7V Battery
• +5v connected to Vcc and LED of the TFT LCD Display and Vin of the ESP32
• +Ve (Bat) connected to + of the 3.7V Battery

3.7V Battery

• + connected to +Ve (Bat) of the Type-C Power Bank Module
• - connected to Gnd of the Type-C Power Bank Module

Code

No code is provided for this circuit.

---

This document provides a comprehensive overview of the circuit, including a summary, a detailed component list, wiring details, and a section for code documentation.