Microcontroller: LPC11U34F/421 (ARM Cortex M0 @48MHz, 48kB Flash, 10kB SRAM)

Power supply: 5V, USB powered

Available interfaces: 34x GPIO, 8x 10bit ADC, 3x 16bit PWM, 3x 32bit PWM, 2x SPI, 1x I2C, 1xUART

Additional features: microSD card reader, USB Hub, RGB led, reset and program push-buttons.

Size: 80 x 63 mm

LPC11Uxx series micro controllers used for UPER1 boards are equipped with ROM based USB device stack which makes binary image upload very easy and not requiring special tools or software.

UPER1 are preloaded with UPER firmware image. UPER firmware is open source initiative for developing micro controller based peripheral extension hubs. UPER on Github.