There are many Open Source software to create dashboards to display data from connected objects (DIY or others). In this category you will find tutorials to implement the main ones. Grafana is a data analysis and visualization software that depends on time. It is very well suited for viewing measurements from sensors or connected objects. One can connect Grafana to several data sources: CloudWatch, ElasticSearch, Graphite, InfuxDB, OpenTSDB, Promotheus. Freeboard.io allows to create dashboards online (a free offer is offered) but also on a local computer.