Specifications

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4.2 line drawings
The
serial
num
ber
tag
Wi-Fi module end pin
description
Home appliance end
pin description
1
V
The VCC power supply
The VCC power supply
2
R
RXD module receives
TXD appliance
delivery
3
T
TXD module send
Reception of RXD
appliances
4
GND
symbol
GND to
GND to
4.3 label requirements
Label printing requirements:
Label size is 21*14mm, label material is white, Song typeface; The dimension of the QR