submitted by /u/arnarg [visit reddit] [comments ..read more

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This beast is almost impossible to carry by one person. Aside from the normal frequency counter stuff, there is a full CPU inside built on descrete ICs. Extracted boards on the last photo are arithmetic logic unit and RAM. submitted by /u/AltCtrlGraphene [visit reddit] [comments ..read more

Mirrored a symbol in the schematic for better readability, got a phonecall, forgot to mirror the signals too when I continued. Did this botch so I can continue writing the firmware whilst waiting for the fixed board to arrive. So, how is your "Revision A" going? submitted by /u/DolfinButcher [visit reddit] [comments ..read more

Open to anything, including discussions, complaints, and rants. Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam. Reddit-wide rules do apply. To see the newest posts, sort the comments by "new" (instead of "best" or "top"). submitted by /u/AutoModerator [visit reddit] [comments ..read more

Hey guys, trying to fix my buddy's Rock Band guitar because they go for like 500 on ebay. So there are two AAs in the battery holder, both are tested good at 1.5 volts. With the batteries installed, between the contact circled in red and both pins in the connector circled in blue, I get +1.5v. I would assume I should have +1.5v on one and -1.5v on the other. I also have 0v across the pins circled in yellow, and I would think I should have 3v. Does it sound like there's a short in the battery holder, or am I missing something here? submitted by /u/jgollsneid [visit reddit] [comments ..read more