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

Table 1

Low-cost single-board computers (SBC).

Single-board computers	Price	Low power	Size ()	Built-in IMU sensor
Arduino Nano 33 BLE Sense	$32.36	√		9-axis IMU
SparkFun Edge	$50.9	√		3-axis IMU
STM32f746G	$57.58	×		×
Raspberry Pi 4	$ 107.95	×		×
BeagleBone AI	$140.95	×		×