The 8ms-UNO compatible with  UNO,is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the 8ms-UNO is the most robust board you can start playing with. The 8ms-UNO is the most used and documented board of the whole 8ms  family.

8ms-Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.. You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.

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