Finally, our beaglebone black C arrived in mail. We cannot wait to turn it on. Along the journey, we found that Beaglebone uses a micro HDMI connector. We have to use a HDMI to micro HDMI cable to be able to use the board with our HDMI monitor.
We uses a 5V/2A wall adaptor to power it up, and are able to see the Linux desktop on the monitor.
What a minute.. Beaglebone black doesn’t have Wifi. So we have two options here: WiFi dongle and a WiFi to Ethernet bridge. If we use WiFi dongle, we may end up with struggling with driver works. So we go the easy path, the WiFi to Ethernet bridge.
When we start to hook it up, we get into another obstacle. Beaglebone black only has one USB host port. We need one for our wireless keyboard and mouse, and another one to supply power to our WiFi to Ethernet bridge. What should we do? Luckily, we have the USB hub from A/V kit for pcDuino.
We hot plug in the USB hub just as what we usually did with pcDuino. However, we found that the UB hub doesn’t light up as shown below:
What can be wrong? Beaglebone can’t provide enough current? It shouldn’t be. We unplug the Ethernet bridge, and the issue stays the same.
We don’t know what brings this idea. But we do power cycle the board, and when the system comes up, we found that the USB hub lights up!
We can also browse web:
The lesson learned here: Beagleboard’s USB port can’t recognize the USB hub if hot plug while pcDuino can.