Chengdu Ebyte Electronic Technology Co.,Ltd
E104-BT12NSP-TB User manual v1.0
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
5
2. Function brief
2.1 Pin definition
Pin No.
Pin name
Pin direction
Pin usage
1
RST
Input
Module reset button
2
SW1
Input
retain
3
SW2
Input
retain
4
TX
output
Serial output pin
5
RX
Input
Serial input pin
6
VCC
-
The jumper cap selects whether it is USB powered or
battery powered
7
BAT
-
Battery power supply pin
8
+5V
-
External power supply pin (not powered by USB)
9
LED_R (PD2)
output
Pwm output
10
LED_G (PC1)
output
Pwm output
11
LED_B(PB5)
output
Pwm output
12
LED_B(PB4)
output
Network indicator
Note: Please refer to the user manual of E104-BT12 for specific function instructions
.
