Specifications:
CPU: ESP32-D0WD-V3, Xtensa dual-core 32-bit LX6 microprocessor
Main Frequency: 240MHz (max)
Memory: 448KB ROM+520KB SRAM+16KB RTC SRAM+4MB external QSPI Flash
WIFI: 2.4GHz, 802.11b/g/n mode
Bt: Bt V4.2 BR/EDR and Bt LE standards
Operating Voltage: DC 3.0-3.6V
Operating temperature: -40~85°C
Liquid crystal screen parameters
Screen size: 2.8 inch
Screen type: TN TFT Resistive touch screen
Resolution: 240x320(pixels)
Effective display area: 45.20(W)x59.45(H)(mm)
Operating Temperature: -10~60℃
Storage Temperature: -20~70℃

Features:
1. Supports external speakers, plays audio, comes with RGB three color indicator lights, and has rich indicator states.
2. Comes with a resistive touch screen for convenient human-computer interaction. Provide rich example programs for easy learning.
3. Standard TYPE-C interface, convenient for program download and power supply. Comes with a micro TF card slot for easy expansion of storage.
4. Supports external lithium batteries, lightweight and portable. Equipped with a battery charging management circuit, it can ensure safe charging and discharging of the battery.
5. Provide technical support for underlying drivers and update Wiki materials online. The module aging test can achieve military grade standards with multiple detections, supporting long-term stable operation.

Package includes:
1 x Module
1 x Data Cable
1 x DuPont Cable
1 x Stylus