J
Jan Nielsen
- Jan 1, 1970
- 0
Hi,
I made a circuit for a simple serial temperature system, it worked on
the breadboard, but something has gone wrong since.
Before I apply power to the board I have 4.3V (3xAA), when I apply power
the voltage drops to 2.5 and keeps dropping, I added a LED to see if it
worked, and it dosent.
-So im guessing its a short circuit right ?
The "diagram" is here
http://codebin.dk/stuff/serialtemp.jpg
The green connections is made with jumpwire, the board is standard
single side that I etched.
The custom components are a jackconnector (bottom right), and just
3holes for a LM35 (VDC+, Output, GND), the 4dot is not used for components.
The IC is a picaxe 08-m.
I have tested the connections from the jack (bottom right) and they look
ok, however several places in the circuit where traces shouldnt be
connected together I get 5MOhm+ instead of a O.L. on my meter, is this
ok ? VDC+ to VDC- gives 11MOhm in disconnected state.
I checked the solder and traces and it looks ok, is there some mistake
in my diagram ?
Thanks,
Jan
I made a circuit for a simple serial temperature system, it worked on
the breadboard, but something has gone wrong since.
Before I apply power to the board I have 4.3V (3xAA), when I apply power
the voltage drops to 2.5 and keeps dropping, I added a LED to see if it
worked, and it dosent.
-So im guessing its a short circuit right ?
The "diagram" is here
http://codebin.dk/stuff/serialtemp.jpg
The green connections is made with jumpwire, the board is standard
single side that I etched.
The custom components are a jackconnector (bottom right), and just
3holes for a LM35 (VDC+, Output, GND), the 4dot is not used for components.
The IC is a picaxe 08-m.
I have tested the connections from the jack (bottom right) and they look
ok, however several places in the circuit where traces shouldnt be
connected together I get 5MOhm+ instead of a O.L. on my meter, is this
ok ? VDC+ to VDC- gives 11MOhm in disconnected state.
I checked the solder and traces and it looks ok, is there some mistake
in my diagram ?
Thanks,
Jan