I had a bit of time to test out the PCB from that LED light bulb. I've just been using continuity tester and ohm-meter for this. Here's the LED logic. High-side transistors but I haven't quite figured out how the resistors are wired. I've also established the A/C side of the switching regulator but I'm having trouble figuring out the output. Similar to the example in the datasheet but not quite the same.
Fall TV is about to start and since I often work during prime time we enjoy time shifting our over-the-air television shows. With this in mind I’ve picked up a second Hauppauge 1250 ATSC tuner card. I popped it in and fired up mythtv-setup but uh-oh, the second card was nowhere to be found.
Looks like this problem has been encountered before. So I grabbed the latest v4l-dvb code and tried it out. Don’t forget to change the FIREDTV value in v4l-dvb/v4l/.config from ‘m’ to ‘n’ before executing the make command.
Naturally make errored out because you must run into several errors when compiling anything (it’s the GNU law you know). So I found this thread and applied the suggested patch.
That seemed to break the bottleneck and I continued on with the sudo make install command and a reboot.
Now I have both cards mapped as adapter0 and adapter1 in /dev/dvb. I used mythtv-setup to add the other card and map it to antenna. I haven’t tried recording two shows at once, but conflicts on the schedule are now set to record so we’ll see.
I’ve just finished my first port of code from AVR over to MSP430. I used the garage door code button source because it’s fresh on my mind and I can reproduce the hardware on the TI Launchpad board. This provided a few sets of challenges, and showed me what I can do from the start to make my code more portable. I’ll get into both of those subjects and share the ported code after the break. Continue reading