Today, DFRobot launched a small single-board computer that combines the Rockchip RK3308 quad-core processor with a RISC-V 32-bit coprocessor. The open source Unihiker is equipped with multiple built-in sensors and it can be programmed with Python and other Open source programming languages.   

According to the Wiki pages, the Unihiker features the following two processors: 

• RK3308 – Quad-core Arm Cortex-A35 (up to 1.2GHz); 512MB DDR3
• GD32VF103C8T6 – RISC-V 32-bit processor (up to 108MHz); 64KB Flash, 32KB SRAM

Unihiker block diagram
(click image to enlarge)

Unihiker is a fully-featured and user-friendly single-board computer equipped with a 2.8-inch touchscreen, Wi-Fi, and Bluetooth capabilities. It incorporates a light sensor, accelerometer, gyroscope, and microphone, along with a built-in co-processor that facilitates communication with a wide range of analog, digital, I2C, UART, and SPI sensors and actuators..

   
Unihiker pinout
(click images to enlarge)

The  specification page indicates that the SBC includes a 4-pin I2C connector, an edge connector compatible with the micro:bit platform (1x I2C, 1x UART, 2x SPI, 6x 12-bit ADC, 5x 10-bit PWM) and a 3-pin I/O connector with support for 3x 10-PWM and 2x 12-bit ADC.

The Wiki pages also mention that the Unihiker comes with “a Linux operating system based on Debian and various built-in features, which will be upgraded from time to time.”

Additionally, DFRobot has compiled various graphical Python tutorials (block-based) to interface with board peripherals. See the demo above for more details.

   
Unihiker peripherals
(click images to enlarge)