Maple Mini is a breadboard-able PCB for applications where space is limited or simply if a breadboard is the preferred prototyping tool. Smaller than a stick of gum, Maple Mini features a smaller, 48-pin STM32 with the same speed and memory as the original Maple, but 34 GPIOs. It can be powered by USB or an external supply. Maple Mini also maintains a complete silkscreen, making it uniquely detailed for a board its size.
Dimensions:2.02 x 0.72 inches
Microprocessor:32-bit ARM Cortex M3 at 72MHz (STM32F103CBT6)
Memory:120 KB Flash and 20 KB SRAM
I/O Pins:34 (of which 12 provide PWM output at 16-bit resolution)