ESP32 Terminal- 3.5 inch 480x320 SPI TFT capacitive touch display with OV2640 camera (ER-DLC35020S)

Description

This handheld ESP32 terminal is based on the ESP32 controller, equipped with a powerful ESP32-S3 chip, and supports 2.4GHz Wi-Fi and Bluetooth 5 (LE), providing more powerful computing and processing capabilities for IoT terminal applications. It is suitable for various scenarios, such as industrial IoT control terminals, smart agricultural terminals, personal smart home monitoring terminals, and personal DIY projects.

Thanks to the scalability of the ESP32-S3 module, it can lead to various interfaces. This ESP32 touch screen not only has Crowtail's digital port, analog port, UART, and IIC interface, but also integrates a MEMS microphone, camera interface, and buzzer function. It supports ESP-IDF and Arduino IDE development and is compatible with Python/Micropython/Arduino. It also supports LVGL, which is the most popular free and open-source embedded graphics library to create beautiful UIs for any MCU, MPU, and display type. With the 2M pixel camera, it can easily realize face/object/scene recognition and provide more creativity in cutting-edge projects such as speech recognition/voice control.

The equipped screen adopts SPI serial screen with 320x480 resolution, and the size of 3.5 inches is the best choice as a handheld/pocket terminal. The frame rate of the screen is up to 20FPS, which is sufficient for most application scenarios. If you have higher requirements for the screen, you can try this RGB touch screen.

The whole terminal is surrounded by a perfect acrylic shell, which makes the whole product look more beautiful. At the same time, it can also be fixed in other ways. With two M3 screw mounting holes, you can mount it on the wall or PLC rail.

Its compatibility with the Crowtail system can give your project an easier implementation method and the convenience of one-stop shopping.

Connect with Crowtail Sensors

It can be connected with 150+ types of Crowtail modules to complete more interesting projects.

 

Support open-source Graphics Library-LVGL

It supports LVGL graphics library. You can use the drag-and-drop UI editor to design and implement your own UI.(The picture below is LVGL official UI design software Squareline studio)

 

Programming Environment Support

It supports programming with VS Code, Python IDE, and Arduino IDE. Different projects can be easily developed.

16 Learning Lessons

It provides 16 learning/application tutorials and a wealth of open-source learning materials. Click here to learn more.

Structure Overview

ESP SPI Screen Hardware Overview

• RESET button. Press this button to reset the system.
• LiPo port. Lithium battery charging interface (lithium battery not included)
• BOOT button. Hold down the Boot button and press the RESET button to initiate firmware download mode. Users can download firmware through the serial port
• 5V Power/Type C interface. It serves as the power supply for the development board and the communication interface between the PC and ESP-WROOM-32.
• 6 Crowtail interfaces (2*Analog,2*Digital,1*UART,1*IIC). Users can program the ESP32-S3 to communicate with peripherals connected to the Crowtail interface.

 

Feature

• Integrated ESP32-S3 module, which is support 2.4 GHz Wi-Fi and Bluetooth 5 (LE)
• 5 inch TFT 320*480 resolution touch LCD display with 2M Pixel OV2640 camera
• Support, USB, UART, SPI, I2C, PWM, and I2S communication protocols
• Supports 1T1R mode, data rate up to 150 Mbps, Wireless Multimedia (WMM)
• Compatible with Arduino/Micropython/Python
• Supports hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
• Support TYPE-C USB power supply and polymer lithium battery power supply with 6 Crowtail interfaces (4P 2.0 connector), plug and play with various Crowtail sensor

 

Specification

Main Chip	Core Processor	Xtensa® 32-bit LX7
	Memory	16MB Flash 8MB PSRAM
	Maximum Speed	240Mhz
	Wi-Fi	802.11 a/b/g/n 1x1,2.4 GHz band supports 20 and 40 MHz bandwidth, Supports Station, SoftAP, and SoftAP + Station mixed modes.
	Bluetooth	BLE 5.0
LCD Screen	Resolution	320*480
	Display Size	3.5 inch
	Drive IC	ILI9488
	Touch	Capacitive Touch
	Interface	SPI Interface
Other Modules	Camera	OV2640, 2M Pixel
	Microphone	MEMS Microphone
	SD Card	Onboard SD Card Slot
Interface	1x USB C
	1x UART
	1x I2C
	2x Analog
	2x Digital
Button	RESET Button	Press this button to reset the system.
	BOOT Button	Hold down the Boot button and press the EN button to initiate firmware download mode. Users can download firmware through the serial port.
Operating Environment	Operating Voltage	USB DC5V, lithium battery 3.7V
	Operating Current	Average current 83mA
	Operating Temperature	-10°C ~ 65°C
Active Area	73.63(L)*49.79mm(W)
Dimension Size	106(L)x66mm(W)*13mm(H)

 

Package List

• 1x 3.5 inch ESP32 SPI Display with camera (included Acrylic Shell)
• 1x USB C Cable

 

Wiki & External links

• Wiki
• Schematic Diagram
• 16 learning Lessons
• Source code
• Lesson code
• LVGL Reference
• ESP32-S3 Datasheet
• ILI9488 Datasheet
• Capacitive Touch Display Datasheet
• OV2640 Datasheet