ELRS CAN Split Rx

Status

• Idea being explored

Resources

• https://discord.com/channels/674039678562861068/711798608147644416/1248214461639036928

• https://discord.com/channels/776618956638388305/976311561373237278/1249793468105097216

Who

• Unassigned

• Ideas

  • @Daniel Puratich can help with hardware design.

  • @Anthony Luo can help with chip selection and architecture

  • @Nathan Green can help with architecture

Why

• We want to use shorter antenna feed lines for ELRS and we have a big drone for Big Quad 2025

• lower loss feed lines require them to be short or heavier

• want to stick with 2.4ghz elrs to get the bandwidth advantage as we’re streaming telemetry and rc over elrs.

What

• Possible Solutions

  • Use two RXes connect to pixhawk and add features to ardupilto and ELRS to support choosing the best one to use. one Rx on each side of the drone

  • Custom hardware to run SPI over a private CAN bus (so not datarate issues) between LR1121 boards which allows for normal ELRS firmware and ardupilot at the cost of more complex custom hardware