Introduction of main control chip: Inner core: -M332-BITRISC; Working frequency: 72MHz, 1.25 DMIPS/MHz; Working voltage: 2-3.6V; Packaging: LQFP100; I/O ports: 80; Storage resources: 512kB Flash, 64kB RAM(103V memory with e suffix is the largest); Interface resources: 3xSPI, 5xUSART, 2xI2S, 2xI2C, 1xFSMC, 1xLCD, 1xSDIO, 1xUSB, 1xCAN; Analog-to-digital conversion: 3xAD(12 bits, 1us, time-sharing 16 channels), 2xDA(12 bits); 5V power input, using DC2.1 * 5.5 standard female head, input range of 4-9V; CAN interface , led out by JTA1050, and the carrier board has been equipped with 120 resistors; Main control chip: STM32F103VET6, LQFP100 package; CAN chip, JTA1050; JTAG port, designed according to standard port. BOOT startup setting options (BOOT0, BOOT1) Power supply 3.3V, GND outlet, convenient for other wiring. Color: Blue & Yellow Material: PCB+Metal Package Contents: 1 * Development board Only 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.