5 از 5.0 با 9 رای
Note: PWRIN range is from 5.0V to 10V, 5.0V is recommended,
TXD / RXD are TTL level which can be directly connected with MCU.
Pin name |
Pin number |
Mark on PCB |
Description |
Comment |
SLEEP |
0 |
S |
control module into sleep mode |
Connect with DTR via R124 |
GND |
1,6 |
G |
GND |
|
PWRIN |
2 |
V |
The power supply |
5V-10V |
PWRKEY |
3 |
K |
Power down |
Shorted with GND via R104 by default |
TXD |
4 |
T |
Transmit Data |
TTL Series data Output |
RXD |
5 |
R |
Receives Data |
TTL Series data Input |