GraphQL-Querying a Bus

Making something useful; an ESP8266 that tells you when the bus gets here.

Example-Query for the code

I’ve been working a lot with APIs lately and figured that making something displaying information from an API with an ESP and an OLED sounded like a perfect weekend project. Preferably for something that i actually need to know, like when the bus gets here! But; GraphQL-queries….

Continue reading “GraphQL-Querying a Bus”

Follow my balcony on twitter

A fun IoT starter project is temperature sensors: Everyone cares about the weather. I am using the esp8266 and a DS18b20 sensor to post the temperature on my balcony to twitter.

Twitter IoT
Twitter update made by my balcony

For the current version of this project i`m using a Wemos D1 Mini that i had laying around: rev1 used an ESP8266-01, but that version of the esp has some disadvantages when it comes to IoT Sensor applications: Power management

Continue reading “Follow my balcony on twitter”