Product Specs

产品规格书
Picture
Pin
Description
Network
Name
Type
Details
1
GND
GND
Power
Ground
2
VCC 3.3V
3.3V
Power
Recommended power range: 3.3V±5%
3
UART sending&receiving
data
UART-TXD
0
3.3V com serial 0 output, GPIO16 available
4
UART sending&receiving
data
UART-RXD
I
3.3V com serial 0 input, GPIO7 available
5
GPIO14
GPIO14
IPU/O
GPIO14 (suspended when not using,
DAC/ADC available)
6
GPIO12
GPIO12
I/O
GPIO12 (suspended when not using,
PWM2/ADC available)
7
Reset
RESET
I，PU
Low level reset, reset time >300ms.
Low effective hardware reset input pin contains
reset circuit. Resistance cannot be pulled in case
the abnormal situation occurs.
Reset input pin, integrated with reset
8
WiFi Status
nLink
IPU/O
Wi-Fi connected, output “0”m or output “1”.
GPIO5, PWM5 available
Power：44K; When using PWM function,
additional 1K resistance is required.
9
Startup Status
nReady
O
“0” – start;
“1” – fail;
suspended when not using;
GPIO4, PWM4 available
10
Restore factory setting
nReload
IPU
Input low level “0”>3s and be high; restore
factory setting
GPIO3, PWM3 available
11
NC
NC
Not used
12
NC
NC
13
NC
NC
14
NC
NC
4