Specifications

HM-WF1200
E-mail:[e-mail] www.hoperf.com Rev1.0
Figure 2 HM-WF1200 Module Pin Distribution
4.Electrical Parameters
4.1 Operating Voltage
Category Min Typical Max Unit Test conditions:
working temperature
0℃~70℃
VCC 2.0 3.3 3.6 V
Pin
No.
Name Description
1 RST
Reset, download mode: externally pulled down,
operating mode: floating or externally pulled up
2 ADC
A/D conversion result. Input voltage range: 0-1V, value
range: 0-1024
3 EN
Chip enable terminal, active high
4 GPIO2 Universal input/output
5 GPIO3 Universal input/output
6 GPIO5 Universal input/output
7 GPIO6 Universal input/output
8 VCC
3.3V power supply, external power supply, current
recommended above 300mA
9 GPIO7 Universal input/output
10 GPIO8 Universal input/output
11 GPIO9 Universal input/output
12 GPIO10 Universal input/output
13 GPIO11 Universal input/output
14 GPIO17 Universal input/output
15 GND Grounded
16 GPIO18 Universal input/output
17 GPIO19 Universal input/output
18 GPIO20 Universal input/output
19 GPIO21 Universal input/output
20 GPIO22 Universal input/output
21 RXD Serial data receiving
22 TXD Serial data transmission