msp430开发板pcb 适用于msp430f14x msp430f15x msp430f16x 板上资源有1602液晶 tft 320240液晶 uln2003 ch451 led 串口 iic at24c08 ds1307-msp430 development board pcb board for msp430f14x msp430f15x msp430f16x resources LCD 1602 LCD uln2003 ch451 led tft 320240 serial ii