Ebyte E104-BT09, User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.
E104-BT09 User Manual
Copyright ©2012–2023
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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3 RXD PD1 Input Serial Receive Pin
4 NC PD2 - -
5 NC PD4 - -
6 NC PD6 - -
7 NC PD7 - -
8 SWS PA3 Program Download
9 NC PA7 - -
10 NC PB3 - -
11 RESTORE PB2 Input
After an internal pull-up, falling edge, and then holding low for
at least 5 seconds, all parameters are restored to factory settings
and the module is automatically rebooted.
12 GND DVSS - Module Ground
13 WKP PB4 Input
Default low level, low power consumption mode, serial port can
not communicate. Pull high to enter normal working mode,
serial port can communicate.
14 VBAT VBAT Input Battery power, support 1.8 V ~ 4.2 V power supply.
15 AVDD3 AVDD3 Input
Positive power supply, 1.8 V ~ 3.6 V, 3.3 V power supply is
recommended.
16 GND GND - Module ground
17 BAT_DET PB5 Input Battery voltage detection, see section 6.2.16 for details
18 LINK PB6 Output
Connection status indicator pin, high level means connected,
low level means disconnected
19 NC PB7 - -
20 GND GND - Module Ground
21 GND GND - Module Ground
22 NC PC0 - -
23 NC PC1 - -
24 GND GND - Module Ground
25 GND GND - Module Ground
26 RESET RESETB Input Reset pin, active low, internal pull-up