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3.5 Inch ESP32-S3 Development Board WiFi Bluetooth 320*480 Resistive Touch TFT Displayv
MTR035S-ESP32-S3
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Product Description
Product Introduction
- Using ESP32-S3 chip, convenient development, and sufficient development resources.
- 3.5-inch color screen with a resolution of 320*480, supporting up to RGB565, offering a rich display colors.
- Rich interfaces, convenient to connect various peripherals (IIC, UART, etc.)
- Support external speakers, built-in microphone, can play and receive audio
- Equipped with RGB three-color indicator lights, the status indication is rich.
- Integrated display and touch, with built-in capacitive touch screen, convenient for human-machine interaction.
- Standard TYPE-C interface, convenient for program download and power supply
- Built-in micro TF card slot, convenient for storage expansion
- Support external lithium battery, lightweight and portable
- Built-in battery charging management circuit ensures safe battery charging and discharging.
- Provide a wealth of example programs for easy learning.
- Provide underlying technical support for driving, and update WIKI materials online.
- The module aging test can reach military-grade standards with multiple detections, supporting long-term stable operation.
- Support for Xiaozhi AI voice chat;
Product Parameters
ESP32 Main Control Parameters
| Item | Parameters |
CPU | ESP32-D0WD-V3, Xtensa dual-core 32-bit LX6 microprocessor |
Main Frequency | 240MHz (maximum) |
Storage | 448KB ROM + 520KB SRAM + 16KB RTC SRAM + 4MB external QSPI Flash |
WIFI | 2.4GHz, 802.11b/g/n mode |
Bluetooth | Bluetooth V5.0 BR/EDR and Bluetooth LE standards |
Operating Voltage | 3.0~3.6(V) |
Liquid Crystal Screen Parameters
| Name | Parameters |
Screen Size | 3.5 inch |
Screen Type | IPS TFT |
Resolution | 320xRGBx480(pixels) |
Effective Display Area | 48.96(W)x73.44(H)(mm) |
Number of Colors | Maximum: 262K(RGB666) Commonly used: 65K(RGB565) |
Driver IC | ST77922 |
Display Interface | QSPI(Received on ESP32-S3) |
Pixel Size | 0.153(H)x0.153(mm) |
Viewing Angle | All 0’CLOCK |
Backlight Brightness (Typical Value) | 300cd/m2 |
Backlight Type | White LED*6 |
| Effective touch area | 54.50(W)x83.00(H)(mm) |
| Touch screen type | Capacitive touch screen |
| Visible window size | 49.96±0.15(W)x74.44±0.15(H)(mm) |
| Communication interface | IIC |
Operating Temperature | -20~60(℃) |
Storage Temperature | -30~70(℃) |
Size Parameters
| Name | Paramaters |
LCD Outline Size | 54.50±0.2(W)x83.00±0.2(H)x3.2(D)（mm） |
Touch Screen Outline Size | 54.50±0.2(W)x83.00±0.2(H)x1.0(D)(mm) |
Module Outline Size | 54.50(W)x101.50(H)x10.00(D)(mm) |
Battery Charging Parameters
| Name | Parameters |
Charging Voltage | Range: 4.2 to 6.5 Typical value: 5 |
Charging Current | Max: 500mA Module Actual value: 290mA |
Charging Saturation Voltage | 4.24V |
Charging Temperature | Module maximum value:62℃ |
Rechargeable Battery Specifications | 3.7V polymer lithium battery |
Electrical Parameters
| Name | Parameters |
Working Voltage | 5.0V |
Backlight Current | 120mA |
Total Current | ESP32 reset: 0 Only the display works: 198 Display, speaker, battery charging all work: 401 |
Power | 0.96W(Display only works) 1.76（Display, speaker, battery charging all work） |
Basic Parameters
| Name | Parameters |
Power Supply Interface | TYPE-C |
Weight(including package) | 101g/112g |
Interface Definition
Interface Function Description
| Interface | Function Description |
ESP32-32E Module | The main control of the display module, which controls on-board peripherals and external peripherals. |
MicroSD Card Slot | Insert a Micro SD card to expand the storage space, for example, to store large data such as font libraries, pictures, and audio files. |
RGB LED | Contains red, green, blue three colors of LED lights, each light can be controlled by IO,used to indicate the status. |
Serial Port | 1.25mm 4P socket. It can be used for serial port debugging, downloading, and communication. An external USB-to-serial port module is required. |
Battery Interface | 1.25mm 2P socket, used to connect a 3.7V polymer lithium battery.The battery is charged through the battery charging management circuit and can also be used for battery power supply. Pay attention to the positive and negative poles of the interface. |
BOOT Button | Used to enter the download mode or conduct button testing.Press and hold this button while powering on, then release it to enter the download mode. Or after powering on, press and hold this button, then press the RESET button, release the RESET button, and then release this button to enter the download mode. When there is no need to enter the download mode, this button can be used as a regular button. |
TYPE-C Interface | Used for module power supply and program downloading. This interface is connected to the one-click download circuit on the module,allowing it to automatically enter the download mode (no need to press the BOOT button). |
RESET Button | Used to reset the ESP32 main control and the LCD. Press it for level reset. |
Expansion Input Pins | 1.25mm 2P socket. IO35 and IO39 are two IO pins with only input functions, used to connect input signals. |
Speaker Interface | 1.25mm 2P socket. Used to connect a speaker for audio playback. |
SPI Peripheral Interface | 1.25mm 4P socket. Used to connect external SPI communication devices. This SPI interface is shared with the MicroSD. It can be used as a normal IO. |
I2C Peripheral Interface | 1.25mm 4P socket. Used to connect external IIC communication devices. It can be used as a normal IO. |
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