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docs(ark-flow-lr): add the ARK Flow LR - #102
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The ARK Flow LR is a new product: the ARK Flow MR board with a Broadcom AFBR-S50EX85D and its own firmware target. It had no docs.
dakejahl
marked this pull request as ready for review
October 16, 2026 21:23
SENS_FLOW_MINHGT 0.08 let flow-only holds sit below the EX85D's 0.6 m minimum, where it reads nothing. The first release is out, upstream builds can't drive the EX85D, and SENS_AFBR_ROT does nothing on a CAN-only node because the range publisher doesn't carry orientation.
ArduPilot reads RNGFND1_MAX in metres, so 5000 and 3000 set 5 and 3 km on the ARK Flow MR and ARK Flow.
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Summary
Adds an ARK Flow LR section: the ARK Flow MR board with a Broadcom AFBR-S50EX85D, on its own firmware target
ark_can-flow-lr.The two
latest/firmware links return 403 untilark_can-flow-lr-v1.18.0.1is promoted, which waits for a production-floor pass.Problem
The ARK Flow LR has no docs, and its live store page links to this section.
Solution
ark_can-flow-lr-v1.18.0.1, and that upstream PX4's build of the target can't drive the EX85D. NoSENS_AFBR_ROTrow: the node's DroneCAN range message doesn't carry orientation.UAVCAN_RNG_MIN0.6,UAVCAN_RNG_MAX100, andSENS_FLOW_MINHGT0.6 so flow-only holds stay where the rangefinder reads. ArduPilot:RNGFND1_MAX100 (m).RNGFND1_MAX30 and 50 (m) instead of 3000 and 5000, which current ArduPilot reads as metres.