High-Flying HF-LPT271 Manuale d'uso - Pagina 9

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1.2.1. HF-LPT271Pins Definition
Pin
Describtion
1
Module Reset
2
3
4
GPIO20
5
Multi-Function
6
GPIO12
7 Module Boot Up
Indicator
8
+3.3V Power
9
Ground
10
GPIO14
11
GPIO21
12
Wi-Fi Status
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
Figure 3.
HF-LPT271 Pins Map
Table2.

HF-LPT271 Pins Definition

Net Name Signal
Type
RESET
I,PU
"Low" effective reset input. There is RC reset
circuit internally. Noneedof external RC reset
circuit.
GPIO11
I/O
GPIO11
I/O
BootSelect, default low,leaveitunconnected.
GPIO17
Low: boot from flash.
High: boot from UART.
GPIO20
I/O
GPIO20
nReload
I,PU
Detailed functions see <Notes>
GPIO3, PWM3
GPIO12
I/O
GPIO12
nReady
O
"0" – Boot-up OK;
"1" – Boot-up Fail;
GPIO4, PWM2
VDD
Power
GND
Power
GPIO14
I/O
GPIO14
GPIO21
I/O
GPIO21
nLink
O
"0" – Wi-Fi connect to router
"1" – Wi-Fi unconncted;
Detailed functions see <Notes>
GPIO22
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