Circuit Documentation

Summary

This circuit integrates an Arduino UNO microcontroller with an HC-05 Bluetooth Module and an ili9341 TFT display. The Arduino UNO serves as the central processing unit, managing data communication between the Bluetooth module and the display. The HC-05 Bluetooth Module enables wireless communication, while the ili9341 TFT display provides a graphical interface for output. The circuit is designed to be powered by the Arduino's 5V output, which is distributed to the other components.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Purpose: Acts as the central controller for the circuit, interfacing with the Bluetooth module and the TFT display.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D0-D13.

HC-05 Bluetooth Module

• Description: A Bluetooth module for serial communication.
• Purpose: Provides wireless communication capabilities to the circuit.
• Pins: Key, VCC, TXD, RXD, State, GND.

ili9341 TFT Display

• Description: A 240x320 pixel color display with a SPI interface.
• Purpose: Displays graphical data output from the Arduino UNO.
• Pins: VCC, GND, CS, RESET, DC/RS, SDI, SCK, LED, SDO, T_CLK, T_CS, T_DIN, T_DO, T_IRQ.

Wiring Details

Arduino UNO

• 5V connected to ili9341 TFT Display VCC and LED, HC-05 Bluetooth Module VCC.
• GND connected to HC-05 Bluetooth Module GND, ili9341 TFT Display GND.
• D13 (SCK) connected to ili9341 TFT Display SCK.
• D11 (SDI) connected to ili9341 TFT Display SDI.
• D10 (CS) connected to ili9341 TFT Display CS.
• D9 (RESET) connected to ili9341 TFT Display RESET.
• D8 (DC/RS) connected to ili9341 TFT Display DC/RS.
• D1 (TX) connected to HC-05 Bluetooth Module TXD.
• D0 (RX) connected to HC-05 Bluetooth Module RXD.

HC-05 Bluetooth Module

• VCC connected to Arduino UNO 5V.
• GND connected to Arduino UNO GND.
• TXD connected to Arduino UNO D1 (TX).
• RXD connected to Arduino UNO D0 (RX).

ili9341 TFT Display

• VCC connected to Arduino UNO 5V.
• LED connected to Arduino UNO 5V.
• GND connected to Arduino UNO GND.
• CS connected to Arduino UNO D10 (CS).
• RESET connected to Arduino UNO D9 (RESET).
• DC/RS connected to Arduino UNO D8 (DC/RS).
• SDI connected to Arduino UNO D11 (SDI).
• SCK connected to Arduino UNO D13 (SCK).

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Additional Notes (documentation.txt)

No additional code documentation provided.