Design with 3.5 inch ESP32-S3 Display module in Cirkit DesignerThe 3.5 inch ESP32-S3 Display Module (Manufacturer Part ID: JC3248W535C_I_Y) by Shenzhen Jingcai Intelligent is a compact and versatile display module. It features a 3.5-inch touchscreen interface and is powered by the ESP32-S3 microcontroller, which supports both Wi-Fi and Bluetooth connectivity. This module is ideal for creating interactive applications, such as IoT dashboards, smart home interfaces, and portable devices.
This circuit integrates an ESP32-S3 microcontroller with a 2.9" Tri-Color E-Ink display, enabling the microcontroller to control the display for rendering graphics and text. The ESP32-S3 communicates with the display using SPI protocol, allowing for dynamic visual output such as animations and text updates in red, black, and white.
Open Project in Cirkit Designer
This circuit features an ESP32-S3 microcontroller connected to an ILI9488 TFT LCD display. The ESP32-S3 initializes and controls the display, demonstrating basic graphics and text rendering using the TFT_eSPI library.
Open Project in Cirkit Designer
This circuit features an ESP32-C6 microcontroller interfaced with a China ST7735S 160x128 TFT display. The ESP32-C6 controls the display via SPI communication, providing power, ground, and control signals to render graphics and text on the screen.
Open Project in Cirkit Designer
This circuit features an ESP32-S3 microcontroller connected to various peripherals including an ADXL355 accelerometer, an SW-420 vibration sensor, a buzzer module, and an ILI9341 TFT display. The ESP32-S3 manages sensor inputs and provides output to the display and buzzer. Power management is handled by a 12V to 5V step-down converter, and a UPS ensures uninterrupted power supply, with a rocker switch to control the power flow.
Open Project in Cirkit Designer| Parameter | Specification |
|---|---|
| Display Size | 3.5 inches |
| Resolution | 480 x 320 pixels |
| Touchscreen Type | Capacitive |
| Microcontroller | ESP32-S3 |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 5.0 |
| Operating Voltage | 3.3V |
| Power Consumption | ~200mA (typical) |
| Interface | SPI |
| Flash Memory | 16MB |
| PSRAM | 8MB |
| Dimensions | 85mm x 55mm x 10mm |
The module has a standard pin header for easy integration into circuits. Below is the pinout:
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | GND | Ground connection |
| 2 | VCC | Power supply input (3.3V) |
| 3 | SCK | SPI Clock |
| 4 | MOSI | SPI Master Out Slave In |
| 5 | MISO | SPI Master In Slave Out |
| 6 | CS | Chip Select for SPI |
| 7 | RST | Reset pin |
| 8 | INT | Interrupt pin for touchscreen events |
| 9 | SDA | I2C Data Line (used for touchscreen communication) |
| 10 | SCL | I2C Clock Line (used for touchscreen communication) |
| 11 | TX | UART Transmit (for debugging or serial communication) |
| 12 | RX | UART Receive (for debugging or serial communication) |
VCC pin to a 3.3V power source and the GND pin to ground.SCK, MOSI, MISO, and CS pins to the corresponding SPI pins on your microcontroller or development board.SDA and SCL pins for I2C communication to read touchscreen inputs.RST pin to a GPIO pin for resetting the module, and the INT pin to a GPIO pin to handle touchscreen interrupts.TX and RX pins for serial communication to debug or send data.SDA and SCL) if not already included in your circuit.Below is an example of how to interface the module with an Arduino UNO using the SPI interface. Note that the ESP32-S3 module can also be programmed directly, but this example assumes the Arduino UNO is used as a host controller.
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
// Define SPI pins for the display
#define TFT_CS 10 // Chip Select pin
#define TFT_RST 9 // Reset pin
#define TFT_DC 8 // Data/Command pin
// Initialize the display object
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
void setup() {
// Initialize serial communication for debugging
Serial.begin(9600);
Serial.println("Initializing 3.5 inch ESP32-S3 Display Module...");
// Initialize the display
tft.begin();
tft.setRotation(1); // Set display orientation
tft.fillScreen(ILI9341_BLACK); // Clear the screen with black color
// Display a welcome message
tft.setTextColor(ILI9341_WHITE);
tft.setTextSize(2);
tft.setCursor(10, 10);
tft.println("Hello, World!");
}
void loop() {
// Example: Draw a rectangle that changes color
static uint16_t color = ILI9341_RED;
tft.fillRect(50, 50, 100, 100, color);
delay(1000);
color = (color == ILI9341_RED) ? ILI9341_BLUE : ILI9341_RED;
}
Adafruit_ILI9341 library is used to control the display. Install it via the Arduino Library Manager.SCK, MOSI, MISO, and CS).Display Not Turning On:
VCC and GND pins are properly connected.Touchscreen Not Responding:
SDA and SCL) and ensure pull-up resistors are used if necessary.INT) is correctly configured in your code.Wi-Fi or Bluetooth Connectivity Issues:
Flickering or Artifacts on the Display:
Q: Can I power the module with 5V?
A: No, the module operates at 3.3V. Use a voltage regulator or level shifter if interfacing with a 5V system.
Q: Is the module compatible with other microcontrollers?
A: Yes, the module can be used with any microcontroller that supports SPI and I2C communication, such as Arduino, STM32, or Raspberry Pi.
Q: How do I update the firmware on the ESP32-S3?
A: Use the ESP-IDF or Arduino IDE to upload firmware via the USB interface or UART pins (TX and RX).
Q: Can I use the module outdoors?
A: The module is not weatherproof. Use an appropriate enclosure for outdoor applications.
Q: What is the maximum range for Wi-Fi and Bluetooth?
A: The range depends on environmental factors but typically reaches up to 30 meters indoors and 100 meters outdoors for Wi-Fi.
This concludes the documentation for the 3.5 inch ESP32-S3 Display Module. For further assistance, refer to the manufacturer's datasheet or contact technical support.