Got the USBridge and Sparky SBC today. Came with Dietpi software. I went to the Dietpi website and downloaded the dietpi.txt for Roon Endpoint. Connected DAC (Dragonfly Red) to the USbridge, Ethernet cable and power to the Sparky Board. Power LEDs come on. Red light on the Sparky board flashes on and off but nothing happens. With eMMC connected, I get power to the DAC but Ethernet light doesn’t flash, suggesting it’s not being powered. With microSD card connected, and eMMC disconnected, Ethernet comes on but there is no power to the DAC. . I’m powering the unit with a iFi ipower 5vDc, which should be adequate power.
Seems like either a software problem (fixable) or a hardware problem (defective unit). I hope someone from Allo.com is reading this topic and will respond.