After toying with the relays and Arduino I found that the diodes weren’t necessary – especially since the relay is latching, and current will be flowing both ways, so putting a diode in each direction would just create a short. As such, I made some modifications to the board and put it into Gerber files [...]
So I “caved”. I bought a Mac. I’ve used Windows for years, from our first computer running 95, to the screaming gaming desktop I built by hand and continue to upgrade to the latest and greatest. Windows has always treated me well. As long as you’re semi-competent, it’s easy enough to deal with its occasional [...]
The arduino USB Power Shield has moved over to a relay design, to eliminate the voltage drop the transistors would have caused. Ports has dropped to two because a) no one needs to control four 5V devices, and b) the relays are latching and need two pins each. The board isn’t done – I’ve ordered [...]
I really wanted there to be a complete solution for the Woot-Off lights project that could be almost plug and play for the end user, so today I drew up a schematic and a board for a USB Power Shield for the Arduino. It pops onto the Arduino like any other shield, and by controlling [...]
The Woot-Off Lights project continues to slowly progress. Over the weekend we moved over to Python for the coding, since that’s the language Alex is most familiar with right now (especially in networking). Serial control of the lights in Python took longer than expected – we could have saved over an hour of troubleshooting had [...]
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