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3.2" ESP32 Development Board with 240×320 Resistive Touch TFT Display
MTR032S-ESP32-32E
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Product Description
Product Features
- Comes with ESP32-32E module, easy development, sufficient development resources
- 3.2-inch color screen, 240x320 resolution, maximum support 262K color (RGB666), display rich colors
- IPS full viewing Angle panel, good viewing Angle
- Rich interface, easy to connect a variety of peripherals (I2C, SPI, UART,etc.)
- Supports external speakers to play audio
- Comes with RGB three-color indicator, indicating rich status
- Comes with resistive touch screen, easy man-machine interaction
- Standard TYPE-C interface for easy program download and power supply
- Equipped with micro TF card slot for easy storage expansion
- Support external lithium battery, lightweight and portable
- Equipped with battery charging management circuit to ensure safe battery charging and discharging
- Provide rich example learning programs, easy to learn
- Provide low-level driver technical support, and update WIKI information online
- Multiple tests for module aging can meet military level standards, supporting long-term stable work
Product Parameters
ESP32 Main Control Parameters
| Item | Parameters |
CPU | ESP32-D0WD-V3,Xtensa dual-core 32-bit LX6 microprocessor |
Main Frequency | 240MHz (maximum) |
Storage | 384KB ROM+512KB SRAM+16KB RTC SRAM+8M internal OPI PSRAM +16M external SPI Flash（N16R8） |
WIFI | 2.4GHz, 802.11b/g/n mode |
Bluetooth | Bluetooth V4.2 BR/EDR and Bluetooth LE standards |
Operating Voltage | 3.0~3.6(V) |
| Operating Temperature | –40~85(℃) |
Screen parameters
| Item | Parameters |
Screen Size | 3.2 inch |
Screen Type | IPS TFT |
Screen resolution | 240xRGBx320(pixels) |
Active Area | 48.60(W)x64.80(H)(mm) |
Number of pixels | MAX：262K(RGB666) TYP：65K(RGB565) |
Drive IC | ST7789P3 |
Screen interface | 4-Line SPI(Connect to ESP32) |
Pixels size | 0.2025(H)x0.2025(mm) |
View Angle | ALL 0’CLOCK |
Luminance(TYP) | 300 cd/m2 |
Backlight Type | White LED*6 |
Operation Temperature | -20~60(℃) |
Storage Temperature | -30~70(℃) |
Touch Screen Parameters
| Name | Parameter |
| Touch Active Area | 3.2 inch |
| Touch Screen Type | Resistive touch screen |
| Touch Screen Resolution | 240x320(pixels) |
| Driver IC | XPT2046 |
| Touch Screen Visual Area | 50.60(W)x66.80(H)(mm) |
| Communication Interface | SPI |
| Material | ITO film +ITO glass |
| Operation Temperature | -10~60(℃) |
| Storage Temperature | -20~70(℃) |
Size Parameters
| Name | Paramaters |
LCD Outline Size | 55.04±0.2(W)x77.70±0.2(H)x2.4±0.1(D)(mm)(Excluding cables and adhesive backing) |
Touch Screen Outline Size | 54.64±0.2(W)x77.30±0.2(H)x1.20±0.1(D)(mm)(Excluding cables and adhesive backing) |
Module Outline Size | Have Touch Screen: 55.04(W)x93.70(H)x5.70(D)(mm) Have no Touch Screen: 55.04(W)x93.70(H)x4.50(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 | 106mA |
Total Current | ESP32 reset: 40 Only the display works: 160 Display, speaker, battery charging all work: 510 |
Power | 0.8W（Only the display works） |
Basic Parameters
| Name | Parameters |
Power Supply Interface | TYPE-C |
Weight(including package) | 103g/90g |
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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