Dual Here4 CAN quick white flashes then nothing

ArduCopter Copter 4.5
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1

Sorry if this is a cross-post, I’m not sure if this is an Arducopter issue or a Here4 issue. Duplicate post is here in the Cubepilot forum:

I’m trying to install dual Here4 GNSS units on my Arducopter 4.5.6 Hexacopter. Each of the units work when plugged in individually, and enumerate to addresses 124 and 125.
When I plug them in together (tried CAN1 and CAN2 ports, and also both into CAN1 using splitter with same results) the LEDs on both units quickly flash white, then they go dead. They don’t enumerate in the DroneCAN explorer until one is unplugged and the system is power cycled.

Any idea what could be happening?

2

It was a power issue. The Cube Orange was not allow to supply enough power for two Here4’s and a Lightware SF/11. Powering one Here4 with a separate 5v supply solved the issue.