esp8266-12f introduction and use

nodemcu relatively bulky and the price is relatively high
at this time can be used instead of using esp12f
nodemcu (v2 v3) using esp12e with only some differences esp12f wiring
is an enhanced version of esp8266-12

enter description here

esp-12F

Pin Figure

enter description here

Each pin function

A total of 22 pins
enter description here

Start mode is still a low level is still the same GPIO0
enter description here

Function pins

GPIO6 ~ GPIO 11 is used for a flash memory (Flash Memory) development board connector is therefore not recommended GPIO6 ~ GPIO 11. Please use caution GPIO10, do not use GPIO9.

The PWM
the PWM interface has four channels, but the user can extend the channels according to their needs. PWM interface can be controlled to control the LED, buzzer, relays, motors, etc.

GPIO12®,GPIO15(G), GPIO13(B)

HSPI
be used HSPI interface SPI Flash, display and MCU

GPIO12 (MISO), GPIO13 (MOSI), GPIO14 (CLK), GPIO15 (CS)

IR Remote control
function infrared remote control interface can be implemented in software programming. The interface uses NEC coding, modulation and demodulation. The frequency of the modulated carrier signal is 38KHz.

GPIO14(IR_T), GPIO5(IR_R)

The ADC
ESP8266EX integrates a 10-bit analog ADC. Can be used to test VDD3P3 (Pin3 and Pin4 of) the power supply voltage and the input voltage TOUT (Pin 6) a. However, these two functions can not be used simultaneously. This interface is typically used sensors.
The I2C
12C interface for connecting external sensors and displays.