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Voltage regulating
02/26/2014 at 13:28 • 1 commentOk, turns out, an op-amp with a transistor don't really make a good voltage regulator. It worked fine for a while, but the transistor got really hot. So i figured, it is temporary anyways (I am waiting for a decent 3.3v regulator), so the worst thing that can happen is that it doesn't have any power anymore. I figured wrong. It broke, and gave my cc3000 nine volts. So it is fried now and i have to order another one.
I'm still not sure why the transistor got so hot, because it was rated for 1.5 A. I suspect though, that in my setup it was just dissipating all the excess voltage.
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Patching
02/25/2014 at 12:00 • 0 commentsI am now at the point where I can connect to the network, and send udp or tcp data. Up to now I have not been able to listen on sockets. I suspect that this is due to the firmware version. It is now version 1.10. I will now have to upgrade the firmware.
The hardest thing about updating the firmware, is that i don't have an mcu available with enough flash to store the firmware update. So I will just fix the sd-card first, and store the firmware there.