1. The main control chip adopts ESP32-S3R8 Tensilica Xtensa dual-core LX7 microprocessor2. The chip supports Wi-Fi 802.11 b/g and Bluetooth 5.3. The screen uses a 2.8-inch ST7701S TFT LCD full-color display.MCU: ESP32-S3R8 dual-core LX7 microprocessorWireless communication protocol: Wi-Fi802.11, BLE5+BT meshProgramming platform: for ide, VS codeOnboard function: PSRAM: 8 MB Flash memory: 16MB TF card holderboot button, reset buttonBattery voltage detection: IO042.8 inch ST7701S IPS TFT LCD monitor:Resolution: 480 x 480RGB full colorInterface: 3-wire Spl+18-bit rgb interfaceDriver phone: ST7015Display type: 28-inch TFT LCD displayColour:blackMaterial:ABSSize: 7.3 x 7.59cmPackage Contents:1 x T-RGB LCD Touch Circular Display1 x Battery cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.