Chengdu Ebyte Electronic Technology Co., Ltd.
E78-TBL-01 User Manual
Copyright ©2012–2021, Chengdu Ebyte Electronic Technology Co., Ltd.
4
2 Pin Definition
Pin number
definition
Function Description
1
5V
5V network on the backplane
2
VCC
Module power input
3
3.3V
3.3V network on the bottom board, which can be
shorted with VCC with jumper cap for module
power input
4
GND
Floor reference ground
5
VCC
Module power input
6
SETB
Module MCU GPIO
7
DIO1
Module multi-purpose digital IO, cannot be used as
external GPIO
8
BUSY
Module SPI busy indicator, cannot be used as
external GPIO
9
I2C_SDA
Module I2C SCL pin
10
I2C_SCL
Module I2C SDA pin
11
UART_CTS
Module UART CTS pin
12
UART_RTS
Module UART RTS pin
13
XRES
Module external reset pin
14
ADC_IN
Module ADC input pin
15
AUX
Module MCU GPIO
16
SETA
Module MCU GPIO
17
UART_RX
Module UART RX pin
18
UART_TX
Module UART TX pin
19
SWD_DATA
Module SWD Data pin
20
SWD_CLK
Module SWD Clock pin
21
GND
Ground
22
GND
Ground
23
GND
Ground
24
GND
Ground
