ESP8266 Module Review with ESP8266 Tutorial

The technical data …

Manufacturer LoLin / AIThinker
Description ESP8266MOD
NodeMCU V.3
Dimensions 59 mm x 31 mm x 13 mm (HxBxT)
Weight 9 grams
Color Black
Connection 1x Micro USB
pinheader 2 x 15 pin 2,54 mm
drill holes 25 mm x 52 mm (d=3 mm)
Wireless WLAN 2,4 GHz
P2P, SoftAP
+19.5dBm output power
Various integrated button for reset and flash
32 Bit CPU 80-160 MHz
64 kB RAM, 4 MByte Flash, 96 KByte additional RAM
3,3 Volt operating voltage and Logic (signal converter for 5 V necessary)
16 GPIO pins
SPI-, I2C-, I2S-Bus
UART Duplex and Simplex
10-Bit analog-/digital converter


WLAN ESP8266 Layout, design and features …