Description N76E003 is another price-effective MCU from nuvoton, similar to ST STM8S003, but further much more cheaper. Lead out all pins Micro USB Power supply On board P15 programmable IO LED. On board power LED. Two lead out UART interface, in which: Main UART port can be used for serial ISP programming. #UART is also is the ICP programming port, by NU-LINK NO need external crystal, if you got a board which have, probably wrong, because this one uses active crystal, most time can use internal crystal. The batch on 2017 still have bug on ADC, please pay more attention when use this. Pre-flashed with ISP LDROM bootloader, so you don’t need a special programming NU-LINK to get start, but can use a normal USB-TTL programmer like CP2102, CH340 to upload code. So total 18K Flash APROM turn to 4K LDROM (bootloader), 14K user application and data flash. More config please attachment. You can find official BSP code examples to get start quickly. Each purchase is one for board only. All documentations here.
