The pieces Hardware Rotating beacon Light Esp8266 Huzzah boards 434 mhz radio modules transmitter and receiver RF controlled power outlets to act as relays Wifi networks VM to run Docker images on, because everything is better with Docker. Software Jenkins Slack Node.js Docker Arduino MQTT message broker Splunk with http collectors Docker logging driver. Current State When there is a Jenkins build failure an alert is posted to a Slack channel. In order for a developer to know there is an error they need to constantly monitor Slack, which is a suboptimal use of time. Beacon Solution We want a developer to be notified in the real world when there is a build failure without breaking their productivity. Enter the beacons. Lets take a step back and explain the topology that we are working with.