Group 2 – Baa-ndwidth Team

Goal:

To establish and encourage data communications between groups, including communication hardware and protocols for their use.

Preparation in Advance:

• Follow the preparation instructions on Getting-Started
• Some materials on LoRa: LoRa De-Mystified, LoRaWAN in 40min
• Some materials on nRF: nRF24L01 – How It Works

Primary Activity:

ROS2 Group Messages – Working with the other groups, establish protocols for the messages being shared between groups and construct a ROS2 messages package for all groups to share.

Secondary Activity:

ROS2-LoRa Bridge & ROS2-nRF Bridge - Developing on the provided LoRa and nRF modules, configure serial to radio protocols to enable long range infrastructure-free communications for connecting to the robots in-field.

Stretch Activity:

Empirical RF Propagation Study - Perform a radio frequency survey across Riseholme Campus, mapping signal attenuation of LoRa and nRF. Considering bandwidth requirements for control via ROS2, which system is most suitable for this application?

Outcomes:

By the end of the week, group members will have developed and deployed a radio communication package on a robot in the field. Alongside this, the empirical RF propagation study, in combination with assessments on the viability of LoRa under the developed protocol, will go towards publication.

Future Engagement:

Moving beyond, members will have opportunity to engage further in mesh infrastructure deployment over Riseholme / Brayford, and connection across Lincolnshire.