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

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

Roymall C.o.

$2.59 /$3.16

4.8915

Shipping to: United States

Express: 7-12 business days

Standard: 15-25 business days

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$2.59 /$3.16

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>>>Code and Schematic<<<

3pcs Product ID: 1493537

5pcs Product ID: 1493535

10pcs Product ID: 1493546

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:

1 x WiFi Node Module

Reviews(23)

4.70

Rocky

5.0

Great idea and super compact, wide range of input voltages and a reset button make this a great device!

Pros:
-cheap
-small
-easy to use

Cons:
-due to esp module placement the heat from the module greatly distorts the temperature data... (I fixed this with short male-to-female cables to distance the esp from the sensor, works but not super convenient)

Overall good product, maybe next time place the sensor and the esp socket to different sides so that temps are reliable? My temps are +8c over what they should be when esp is on top of the sensor
JessieN

5.0

Good value for the money. Better with allowance.
Perfectly for the esp8266 small connections so the system fit in a small box.
I programmed Esp8266 an MQTT client and tested with a MQTT Dash App with an ESP32 as a poor man MQTT broker. It works well for a while and needs reset. More debug work needed.
Not great precision, needs calibration. I thought it was self heating. But the other DHT11 also has offset issues.
Thanks Bangood.