pcDuino3Nano is an ultra cheap Allwinner A20 dual-core ARM Cortex-A7 development board with Arduino support, selling at $39 with 1GB RAM, 4GB NAND flash, has a SATA connector, microSD card slot, HDMI, mini-jack audio, Gigabit Ethernet, 2xUSB host, 1xUSB OTG, Arduino UNO extension interface with 14 GPIO, 2 PWM, 6 ADC, 1 UART, 1 SPI,[…]