Dear CamBike enthusiasts,

Now that the whole CamBike team has been reunited in Cambridge once again, we’re looking forward to starting the next phase of the project: we have a working prototype, now it’s time to begin scaling up!

Presenting in Paris

The whole team made it to Paris in one piece, and even managed to collect some data within the city ahead of the presentation. Peter got on his bike one more time to cycle around the Arc de Triomphe, and collected some accelerometer data (see picture). The presentation was a success, with the audience asking lots of questions on the possible applications of the project.

Data transmission

Back in Cambridge, work has continued. We are setting up an LPWAN (Low-Power Wide Area Network) to transmit the data from your bike to our database. Such networks have been developed for the requirements of the Internet of Things, i.e., to enable data collection from lots of potentially remote devices: they consume very little power compared with other data transmission technologies such as WiFi, and they can transmit from very long distances (up to 40 km!). We explored two of these networks: LoRa and SigFox. Finally, we decided to use LoRaWAN in our prototype, as it currently works better at bike speed.

Getting our air pollution sensors on the road

After only having one particulate matter (PM10)-sensing prototype for Paris, we now have a range of PM10 prototypes that can be used for acquisition of pollution data in Cambridge. The prototypes currently save to SD card, but LoRa integration is soon to come.

We’ve begun using the prototypes to collect some first qualitative data around Cambridge, which already looks promising!

CamBike Makeathon

On Saturday August 4th, we’ll be organising a one-day "makeathon" at the Cambridge Makespace. The aim of this event is to bring together people with a range of relevant types of expertise, from bikes to 3D printing, to contribute ideas towards the improvement of the final sensor hub design. If this sounds interesting to you, check out the eventbrite page or our poster.

CamBike workshop at the Centre for Computing History

We’ll be organising a workshop around our project on the 14th of August at the Cambridge Centre for Computing History, in which we will do some soldering to build a device and will take it outside to collect some data. Great for parents with children. More details on registering will be announced soon.

What’s next?

This week, we’ll experiment with our PM10 sensors and LoRaWAN, and continue making arrangements for our makeathon workshop. Also, tune in to the local TV network That’s Cambridge this Wednesday evening from 6 pm, to watch a short interview with the CamBike Sensor Team!

The CamBike Sensor Team

P.S. If you know anyone who might also like to stay tuned, let them know to just drop us an email!

Previous editions of our newsletter: 04/07/2018 and 11/07/2018.