Скачать или смотреть Arduino/Genuino 101 recognizes characters by its own neurons.

Thanks to technologies developed by General Vision Inc. and implemented in hardware by Intel, Curie processor can recognize almost everything. If we exclude unnecessary elements (monitor, OLED screen) such a system can work really fast.
There're 3 devices involved: the ESP-32 Cam which is responsible for getting the video, forming the features vector, the Arduino gets the vector and learn or recognize it, the Android tab/phone/smart watch as user terminal for learning only . Cam and Arduino have wired connection, BLE channel is for Android watch which gets/sends data to both Cam and Curie.
The Cam is based on 2 Cores SoC the video stream is passed in DMA mode into two buffers, also there is an SD Card slot, it may be useful for loading/storing the neuron's memory, knowledge databases and so on.
Implementing Curie Core boards (seen in the last part) one can build things with small SWaP.