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Table 3 Smart watch specifications

From: Random forest and WiFi fingerprint-based indoor location recognition system using smart watch

Hardware Product name
Arduino board Arduino Pro Mini
USB uploader CP2102 USB uploader
Fault tolerance
USB battery charger Micro USB 18650 lithium
Battery charging board
Bluetooth HC-06 bluetooth module
OLED LCD 1.3” OLED OCD—SH1106
Battery Li-Po battery
Switch Slide switch
WiFi module ESP8266 WiFi module