Project: SpaceState ESP Clock
Name	SpaceState ESP Clock
Initiator	zeno4ever
Status	60%
Skills	Basic Electronics, Arduino Software (C)
Summary	Show space open/close state with nodeMCU / ESP-12E / ESP8266

I wanted to see if the TkkrLab hackerspace is open on my clock. For this I used an nodeMCU with a RGB led to request the spaceapi every 10 mins and display open (green) or closed (red) status.

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Resources

Parts List

• Clock
• nodeMCU v2
• 10 mm RGB LED
• 1x 1K resistor

Software

• source code for nodeMCU : https://github.com/zeno4ever/spacestatus_ESP
• Library for json processing https://bblanchon.github.io/ArduinoJson/

Steps

I used male breadboard connectors to connect everything to the nodeMCU, you can solder the RGB led directly on the wire (with one resistor on the anode (+))

The clock I have has a 6v that is connected to the Vin and GND of the nodeMCU

There are a few different types of nodemcu, check out this article for more information about these