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EchoUS Product Line Addition #32751

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alexbytner wants to merge 12 commits intoArduPilot:masterfrom
Echo-Unmanned-Aerial-Systems:EchoUS
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EchoUS Product Line Addition #32751
alexbytner wants to merge 12 commits intoArduPilot:masterfrom
Echo-Unmanned-Aerial-Systems:EchoUS

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@alexbytner
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Summary

Added hwdef files for the EchoUS-L431 CAN peripheral node and EchoUS-Airspeed SDP3x
CAN airspeed sensor by Echo Unmanned Systems. Board ID 1337 reserved in
Tools/AP_Bootloader/board_types.txt.

Classification & Testing

  • Checked by a human programmer
  • Tested on hardware

Description

Adds board definitions for two EchoUS AP_Periph peripherals based on the STM32L431 microcontroller:

EchoUS-L431

A compact CAN peripheral node featuring:

  • DroneCAN interface
  • SPI1 with RM3100 magnetometer support
  • I2C2 bus
  • 3x UARTs (debug, MSP, GPS)
  • 5V input (5.5V max)

Product page | Documentation

EchoUS-Airspeed

A DroneCAN-connected SDP3x airspeed sensor node featuring:

  • SDP3x differential pressure sensor (DLVR 10", ±1500 Pa)
  • Maximum airspeed: 50 m/s
  • Dual CAN connectors for daisy-chaining
  • 5V input (5.5V max)

Product page |
Documentation

Both boards are manufactured by Echo Unmanned Systems and are available for purchase.

Note: Bootloader binary PR (bootloaders: EchoUS-L431) will follow. > Hardware is already in production and available for purchase. Binaries are > being re-validated before submission.

alexbytner and others added 10 commits March 1, 2026 12:08
@Hwurzburg Hwurzburg added the WikiNeeded needs wiki update label Apr 13, 2026
@Hwurzburg
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One commit for Tools, one for AP_HAL_ChibiOS and missing bootloaders in Tools/bootloaders, hence the CI failures

@Hwurzburg
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do not do MERGE commits....not needed...REBASE if master has changes needed for CI pass (rare)...your commit structure is still incorrect

@alexbytner alexbytner closed this Apr 13, 2026
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2 participants