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3pcs ESP8266 ESP-01 ESP-01S DHT11 Sensor Temperature and Humidity WiFi Node Module

3pcs ESP8266 ESP-01 ESP-01S DHT11 Sensor Temperature and Humidity WiFi Node Module

Roymall C.o.

$2.50 /$6.09

4.41555

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$4.99 /$6.09

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>>>Code and Schematic<<<

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.

Characteristic:

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

Application example:

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)
Package includes:

3 x WiFi Node Module

Reviews(3)

5.00

akomstores

5.0

Excellent for prototyping, but not beyond.

For real world battery-powered usage this won't work well because it wastes a lot of power on the LED and the voltage regulator. I removed the LED (-4mAh), and will eventually just desolder the DHT and wire it directly to the ESP-01 (I don't need the regulator).
eroosenmaallen

5.0

Significant self-heating (3-5⁰C, depending on input voltage), but otherwise works well.