Product Info
Table Of Contents
DOIT.AM
®
ESP-F1 User Manual
Doctors of Intelligence & Technology (DOIT)(www.doit.am) Copyright@2014-2017
Page 4
Table 2.2 Function Definition of Module Pins
Num
Pin
Type
Function
1
RST
I
Reset the signal outside (enable with low), Reset module
2
ADC
I
A/D pin. Input voltage
0
~1V, value:
0
~1024
3
EN
I
Enable, high level: chip work normally; low level: chip closes with
small current.
4
IO16
I/O
deep sleep/wakeup
5
IO14
I/O
GPIO14; HSPI_CLK
6
IO12
I/O
GPIO12;HSPI_MISO
7
IO13
I/O
GPIO13;
HSPI_MOSI;U
A
R
T0
_C
TS
8
VCC
P
Module working voltage: 3.3V
9
CS0
I/O
GPIO11; SD_CMD; SPI_CS0
10
MISO
I/O
GPIO7; SD_D0, SPI_MSIO
11
IO9
I/O
GPIO9; SD_D2 PIHD; HSPIHD
12
IO10
I/O
GPIO10; SD_D3;SPIWP; HSPIWP1
13
MOSI
I/O
GPIO8; SD_D1;SPI_MOSI1
14
SCLK
I/O
GPIO6; SD_CLK; SPI_CLK
15
GND
P
GND
16
IO15
I/O
GPIO15; MTDO;HSPICS;
U
ART0_RT
S
17
IO2
I/O
GPIO2;
U
ART1
_T
XD
18
IO0
I/O
GPIO0;SPI_CS2
19
IO4
I/O
GPIO4
20
IO5
I/O
GPIO5
21
RXD
I/O
GPIO3; used to build in Flash as UART Rx
22
TXD
I/O
GPIO1;
used to build in Flash as UART Tx