Python app that lets you simulate data flow over mqtt. It allows you to publish complex, random objects as well as simple value on given mqtt topic. Easy to setup and use from both GUI and CLI mode.
Could you add a topic that emits a list of GPS data from a simulated route?
1 - When you add a new topic in the 'format' box it could have a checkbox where it says GPS, if you check , in the format text box, an expression is made which would generate simulated GPS values, such as latitude, longitude, height .