Code Review Lamp is a Neopixel-based, WiFi-enabled gadget that reminds developers to peer-review their colleagues' code. For each submission that has not been reviewed enough, it dims up and down at a color that is specific to the developer who is trying to introduce a new functionality to a project. The lamp stops shining once the code has either received enough reviews by the team, been merged or designated as Work In Progress. Currently, it is configured to work with Gerrit (v.2.15) but it could be programmed to fetch data from different tools such as Jenkins, GitHub, GitLab etc.
The gadget is comprised of an ESP8266 microcontroller module that connects wirelessly to the internet, as well as a Neopixel ring which displays various colors.
Read more on the project's GitHub repository.