OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Beagle (OSBo) › Power supply and stability › Re: Re: Power supply and stability
Sorry to hear that, and thanks for your feedback. Which WiFi dongle are you using?
There are some related discussions about WiFi adapter drivers in another thread:
You may want to check it out to see if it helps.
Another workaround is to use a powered WiFi adapter, such as this one:
Basically you can plug it into Bone’s Ethernet jack and it provides a WiFi interface to the Bone. This should work pretty reliably.
Regarding your earlier question on having two +5V sources powering the same board, in general you shouldn’t do this. If you want to power Bone from an external power supply only, you can clip off the +5V header pins on OSBo so that it won’t compete with the external power supply. The +5V header pins are number 5 and 6 on P9 (the third column from the right end).
I will have to think about improving the power supply design to make WiFi more reliably for Bone. The 24VAC -> 5VDC regulator circuit is the same on OSPi and OSBo, and it has worked well on OSPi. The Bone probably has higher current or EMI requirements and I will have to investigate further.