Main functions of wtcard: scan electronic chest card, connect electronic chest card, create template, modify template, send chest card template to electronic chest card, OTA update, etc., use Bluetooth 5.0 communication technology, self-developed electronic chest, suitable for all industries. Features: Bluetooth 5.0 communication protocol, connection, data transmission encryption processing; dot matrix electronic paper screen, display content freely defined, flexible display, not limited by language, two-dimensional code, bar code, NFC to achieve online and offline interaction
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