Features: 1. FSMC LCD interface2. CH340C one click download circuit3. Standard JTAG/SWD interface4. NRF24L01 interface5. -SD interface.W25Q16 FlashSpecifications:CPU core: ARM -Maximum dominant frequency of CPU: 72MHZOperating voltage range: 2V~3.6VInternal vibrator: Yes FLASH capacity: 512K@x8bit RAM capacity: 64KBFEPROM/Data FLASH Capacity:-Number of GPIO ports: 112 (units/channels/digits): 1@x21ch /12bitDAC (units/channels/bits): 1@x2ch /12bitPeripheral/function/protocol stack: temperature sensor; DMA; Watching ; POR; PWMOperating temperature range: - 40 ~+85 Development board size: 96.5 x 76.2mmDisplay module:Display color: 16BIT RGB 65K colorModel: MRB2801Screen size: 2.8 (inch)Screen type: TFTDriver chip: ILI9341Resolution: 320 * 240 (Pixel)Module interface: 8bit or 16bit parallel interfaceEffective display area (AA area): 43.2x57.6 (mm)Type of touch screen: resistance touch screenTouch IC: XPT2046Module PCB base plate size: 51.00x82.55 (mm)Working temperature: - 20 ~60 Storage temperature: - 30 ~70 VCC power supply voltage: 3.3V~5VPower consumption: TBDMaterial: PCBcolour: blackPackage Contents:1 x STM32F103ZET6 development board1 x USB cable1 x 2.8-inch TFT touch screen1 x Touch penOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.