This module uses ESP8266 ESP-01/01S as the master control, and DHT11 as temperature and humidity sensor.
Randomly send ESP-01S or ESP-01
Working voltage: DC 3.7V-12V (supports 3.7v lithium battery)
Measuring range: 20-90% RH 0-50 ℃
Measurement accuracy: temperature: ± 2 ℃ humidity ± 5% RH
It can be used as temperature and humidity collection node for smart home or IOT project.
Connect power supply 3.7V-12V DC to VCC GND (pin 2.54mm).
Download program to ESP-01S.
Insert ESP-01S into the 2*4 Pin row (in the direction of the arrow).