Size And Pin Definition - Ebyte E49-400T20D User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

3. Size and pin definition

Pin No. Pin item
1 M0
2 M1
3 RXD
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Pin direction
Input
Work with M1 to decide 4 working modes of module (can be suspended, internal
（weak pull-up）
pull-up resistor).
Input
Work with M0 to decide 4 working modes of module (can be suspended, internal
（weak pull-up）
pull-up resistor).
Input TTL UART input, connects to external TXD output pin.
E49-400T20D User Manual
Application
5