Power cycling BBB’s with clicky relays
Sometimes the Ethernet port on a Beagle Bone Black does not work on power up. It takes either a physical reset button press or a power cycle to fix it. This problem affects all BBB’s and until now could only be solved with hardware hacks.
The final official word from TI on this problem:
“There is no solution for this on the BB Black“
This sucks. If you are thinking of using a Beagle Bone Black for anything important… then don’t. And don’t bother reading the rest of this article.
If you already are stuck with the Beagle Bone Black and wish that it worked right each and every time you turn it on, then read this article.
Here is a workaround that can guarantee that an unmodified Beagle Bone Black will have a working Ethernet port within a few minutes after power up.
The NYC rental market is a deeply broken market. Things like rent control, high switching costs, and crazy tenant protection laws (that horribly hurt good tenants) cause mind bending distortions and completely disrupt the normal supply/demand balance.
If you are new to this market, get ready to learn some new rules.
“Google called, and josh.com needs more cats.”
So today we look inside these amazing cats that can somehow keep on wavin’ using less than 15 microwatts (!) of power. If you are into either ultra low-power or extreme design-for-manufacture, the you will want to see what is inside of these guys!
“What I can not create with an Arduino, I do not understand”, so we then proceed to recreate a lucky cat under Arduino digital control.
You and Nakimoto are stranded on a deserted island with nothing but your notebooks and pencils. Luckily you each have dual PhD’s in cryptography and macroeconomics, so everything is going to be OK – you will survive by your wits alone.
The am335x ARM chip in the BeagleBone Black has a Real Time Clock hidden inside that you can use to have the board spontaneously turn itself on anytime in the next 100 years.
Here I present a new utility to manage that built-in clock from the Linux command line, and explain how to use it to keep time, shutdown, software power cycle, and more!
A man walks to a bank with a $1 million check.
M: I’d like to cash this check, please!
As each year passes and my to-do lists get longer, I have to accept that I will die long before I will get to make and do everything I want to.
Here are some things that I probably will never get to, but maybe you will? Don’t let the crackpot-stream-of-consciousness-style throw you, I believe most of these ideas could actually be successful and profitable… with some work.
Let me know if you are truly interested and I will try to share any effort I’ve already invested to give you a head start….