Repurpose

component-video-switchAfter watching recent Adafruit videos (12, & 3) about IR and getting a neat new microcontroller which has a built-in IR transmitter, it looked fun to hack around with. I don’t have an IR receiver though. Then I remembered this old component video switch was in a storage closet. I tore it apart and easily got out the IR receiver. While I was destroying the device I figured I might as well take a bunch of parts that may be useful. If nothing else it was good practice desoldering.

The big PCB with a lot going on is already gone with the trash. The two small PCBs with buttons and LEDs (a triple set and a single) are cool and will be fun to work with since they’re already wired up. Would be neat to use these in an actual project some day.

img_8931The other components I kept are:

  • IR 4 button remote
  • L7805 voltage regulator
  • PIC16C505 CMOS microcontroller
  • HD74HC126P quad buss buffer

  • 2x CD4052BE analog multiplexer/demultiplexer
  • HA17358A dual operational amplifier
  • 78L09L voltage regulator
  • A1515S PNP transistor
  • 71M4 IR receiver sensor

Of course, I can’t find a datasheet for the one part I want to use. IR is pretty standard, so I’m hoping they didn’t go rogue when developing this device. I’ll post more once I get a chance to experiment.

Several months ago I would have had no idea what any of this stuff was, let alone how it worked. I still don’t know what several of those ICs do, but at least I’m able to look at the traces on the PCBs and follow connections to get a general idea of how everything works.

Never stop learning!

grasshopper

I bought the new Raspberry Pi Zero W along with the official Raspberry Pi Zero case. It’s really nice not having to worry about a wireless adapter. The addition brings my Pi family up to 7, which of course means it’s time for the letter G. Not a lot of pies starting with G. I ended up going with grasshopper pie, which is based off the popular drink and happens to be the first drink I ever made with my Mom. We always used to make the ice cream variation during the holidays, which is effectively a mint milkshake.

Remembering Arnold Palmer

Sunday at the Masters.

I walked my first 9 holes of the year this morning with Alex, hitting some good shots. When I got home I brewed an iced tea and lemonade, also known as an Arnold Palmer. Now I’m going to relax all day. First up is watching the special “Jim Nantz Remembers Augusta: Arnold Palmer – His Last Visit to the Masters.” Then I’m going to watch the tournament.

arnold-palmer-masters.jpg

Photo by: Sam Greenwood/Augusta National