I don’t often etch a board with top-side traces only, but this project has a great deal more room than many of my others. In any case, this is an awesome logic analyzer that will be built into a DMG shell. It uses the original power supply, battery compartment, power switch and several of the actual buttons.
My main concern is the placement of my logic probes. BNC jacks are very large and the probe connectors are larger yet. Only two would fit if mounted on the top and this Atmega program analyzes four channels at once!
Received my LCD in the mail today and….all of the pins are not as they were originally listed, the LEDs are active low instead of active high and I get to remake my entire schematic. Yay China.
Just as I appreciate positive feedback.
Anyhow, I finally got around to printing the mirrored image and may etch the board this afternoon. I managed to redesign the library file in eaglePCB and rerouted the appropriate traces in one sitting. I may also have aced my job interview this morning.
GAhhhh……
Turns out this crappy Chinese variant ALSO runs on 3.3-5v and not 2.2-3.3v
basically I get to pull out my voltage drop diodes and bridge them. HOWEVER, my logic analyzer works.
Still working on it, but here you go: http://imageshack.us/g/1/10044715/
As you can see, I designed the LCD upside down and only had three RCA jacks on hand. yay…..
I don’t often etch a board with top-side traces only, but this project has a great deal more room than many of my others. In any case, this is an awesome logic analyzer that will be built into a DMG shell. It uses the original power supply, battery compartment, power switch and several of the actual buttons.
My main concern is the placement of my logic probes. BNC jacks are very large and the probe connectors are larger yet. Only two would fit if mounted on the top and this Atmega program analyzes four channels at once!
Received my LCD in the mail today and….all of the pins are not as they were originally listed, the LEDs are active low instead of active high and I get to remake my entire schematic. Yay China.
This is still really awesome dude. I love seeing this stuff on here.
Just as I appreciate positive feedback.
Anyhow, I finally got around to printing the mirrored image and may etch the board this afternoon. I managed to redesign the library file in eaglePCB and rerouted the appropriate traces in one sitting. I may also have aced my job interview this morning.
Physical pics are sure to follow very shortly.
GAhhhh……
Turns out this crappy Chinese variant ALSO runs on 3.3-5v and not 2.2-3.3v
basically I get to pull out my voltage drop diodes and bridge them. HOWEVER, my logic analyzer works.
Post pics of it in action when you have it assembled!
Very cool!
Still working on it, but here you go:
http://imageshack.us/g/1/10044715/
As you can see, I designed the LCD upside down and only had three RCA jacks on hand. yay…..
Looks cool. What are the specs? I might want one;)
Here is the creator walking through its use:
http://www.youtube.com/watch?v=oep_eB51JPw
I just redesgined the PCB to fit inside of the GB.
Obviously, you may connect the probes to anything, not just an IR receiver.