Circuit Documentation

Summary

This document provides a detailed overview of a circuit that integrates an ESP32-CAM module, a TFT LCD Display (ST7735S), a 2.1mm DC Barrel Jack, and a Mini 360 Buck Converter. The circuit is designed to power the ESP32-CAM and the TFT LCD Display using a DC power source, with the Buck Converter regulating the voltage.

Component List

1. ESP32-CAM

   • Description: A low-cost microcontroller with integrated Wi-Fi and Bluetooth, featuring a camera module.
   • Pins: 5V, GND, IO12, IO13, IO15, IO14, IO2, IO4, VOT, VOR, VCC, IO0, IO16, 3V3

2. TFT LCD Display ST7735S

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

3. 2.1mm DC Barrel Jack

   • Description: A standard DC power jack for connecting an external power supply.
   • Pins: switch, sleeve, center

4. Mini 360 Buck Converter

   • Description: A small, efficient buck converter for stepping down voltage.
   • Pins: IN-, OUT-, OUT+, IN+

Wiring Details

ESP32-CAM

• 5V: Connected to Vcc of TFT LCD Display and OUT+ of Mini 360 Buck Converter
• GND: Connected to GND of TFT LCD Display and OUT- of Mini 360 Buck Converter
• IO12: Connected to RESET of TFT LCD Display
• IO13: Connected to SDA of TFT LCD Display
• IO15: Connected to CS of TFT LCD Display
• IO14: Connected to SCK of TFT LCD Display
• IO2: Connected to A0 of TFT LCD Display

TFT LCD Display ST7735S

• Vcc: Connected to 5V of ESP32-CAM and OUT+ of Mini 360 Buck Converter
• GND: Connected to GND of ESP32-CAM and OUT- of Mini 360 Buck Converter
• CS: Connected to IO15 of ESP32-CAM
• RESET: Connected to IO12 of ESP32-CAM
• A0: Connected to IO2 of ESP32-CAM
• SDA: Connected to IO13 of ESP32-CAM
• SCK: Connected to IO14 of ESP32-CAM

2.1mm DC Barrel Jack

• switch: Connected to IN- of Mini 360 Buck Converter
• center: Connected to IN+ of Mini 360 Buck Converter

Mini 360 Buck Converter

• IN-: Connected to switch of 2.1mm DC Barrel Jack
• IN+: Connected to center of 2.1mm DC Barrel Jack
• OUT-: Connected to GND of ESP32-CAM and GND of TFT LCD Display
• OUT+: Connected to 5V of ESP32-CAM and Vcc of TFT LCD Display

Code

No code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and code documentation. The components are clearly described, and the wiring connections are meticulously detailed to ensure accurate assembly and understanding of the circuit.