ESP8266 ESP-01 ESP-01S DHT11 Sensor Temperature and Humidity WiFi Node Module + ESP8266 ESP-01S Remote Serial Port WIFI Transceiver Wireless Module

Feature:

This module is mainly controlled by ESP8266-01/ESP-01S, and DHT11 is a temperature and humidity sensor. The temperature and humidity in the ESP8266 acquisition environment are uploaded to the server. Support 3.7v-12V DC power supply (3.7V lithium battery). Can be used as a temperature and humidity collection node for smart home or IOT projects.

ESP8266 ESP-01S:
1MB (8Mbit) Flash size.
AP, STA, AP+STA modes available.
Very simple AT commands, easy to use.
Low-power consumption and small
Internal LWIP interface.
Only four pins interface, VCC-3V3, GND, TXD and RXD.
AT commands firmware. New IC ESP8266ex
This module just have small upgradation on ESP-01 PCB board