A Wearable Real-Time Character Recognition System Based on Edge Computing-Enabled Deep Learning for Air-Writing

Figure 3

(a) The 3D-printed shell of the air-writing recognition system with a white Velcro strap. (b) The Arduino Nano 33 BLE Sense board with a microcontroller/Bluetooth module and a USB power cord. (c) The air-writing recognition system worn on the index finger.

(a)

(b)

(c)