View source for NodeMCU-ESP8266-Temperature-Relay-Control

{{project
| image=Fan-control-open.jpg
| name = Temperature controlled Relay
| description = BME280 controlled relay with WiFi, Web interface and HTTP data reporting
| status = beta
| author = German
| username = C22
}}

=== ESP8266, NodeMCU Temperature controlled Relay ===
This relay control unit is standalone and consists of the following parts:
* NodeMCU Microcontroller
* Relayboard (up to 230V, 10A)
* 12V -> 3.3 V converter (for this specific use-case, to power the fan and microcontroller from the same source)
* BME280 Temperature and Humidity sensor
* 12V power supply 

The software makes use of standard libraries (WiFi, Adafruit Sensor Library) and [https://github.com/s00500/ESPUI ESPUI.]
Relay is switched every minute if it exceeds the configurable temperature on the temperature sensor. The sensor is read every 10 seconds.
Every 30 seconds the readings are sent to a remote webserver (to process the data in InfluxDB for my use-case). 

Finished project with enclosure looks like this:
[[File:Fan-control-closed.jpg|thumb]]

[[Category:Project]]