Features:

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.

• Master: ESP-01/ESP-01S (This module does not include ESP-01/ESP-01S)
• Temperature and humidity sensor: DHT11
• Working voltage: DC 3.7V-12V (supports 3.7v lithium battery power supply)
• Measuring range: 20-90% RH 0-50 °C
• Measurement accuracy: Temperature: ± 2 ° C Humidity ± 5% RH

1. Power supply: 3.7V-12V DC power supply is connected to VCC GND (2.54mm pin header)
2. Download the program to ESP-01S (package does not includes this wireless module)
3. Plug the ESP-01/ESP-01S (package does not includes this wireless module) into the 2*4 Pin female (in the direction of the arrow)