In terms of form factor, the small (65 mm × 30 mm) Coral Dev Board Micro is reminiscent of the Raspberry Zero and, like it, is intended for low-power applications. However, the built-in camera, microphone, NXP ARM cores and Coral Edge TPU predestine it specifically for AI and machine learning; it is powered by Google’s Edge TPU software stack for the existing Coral family.
(Image: Coral/Google)
The NXP CPU i.MX RT1176 with Cortex M7 and M4 cores works with a Coral Edge coprocessor as a “Tensor Processing Unit” (TPU), which achieves a remarkable 4 TOPS (int8) at 2W power consumption. 64 MB RAM and 128 MB Flash are available as memory.
The camera resolution isn’t good enough for a photo album (324 × 324 pixels), but for pattern recognition and positioning tasks. 12 pins are available for general I/Os, for the upcoming plug-in modules (WiFi/Bluetooth and Ethernet/PoE board) there are two 100-pin miniature connectors. Coral has not yet named a price or the clock frequency of the ARM CPU.
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