Ice Tube producing wrong voltage at D3
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Ice Tube producing wrong voltage at D3
I went back and checked the placement and orientation of all the components on the PCB but I just can't seem to find the problem. The voltage between the grounding tab of the voltage reg and D3 reads 9VDC
-
- Posts: 12151
- Joined: Thu Apr 06, 2006 4:21 pm
Re: Ice Tube producing wrong voltage at D3
whats the voltage supposed to be?
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Re: Ice Tube producing wrong voltage at D3
at least 40 but not over 75 is my understanding
- stinkbutt
- Posts: 593
- Joined: Wed Feb 17, 2010 2:40 am
Re: Ice Tube producing wrong voltage at D3
So you're measuring the output of the boost converter. I really have no idea what the issue is, but the smart money says some time in the next 12 hours either adafruit or arduwino is going to post, asking you to post pictures of your assembly.Myrtana wrote:at least 40 but not over 75 is my understanding
I'm going to ask just one question though, and it's insulting stupid, but I'm going to asking it anyway, so I apologize in advance for asking, but: You have plugged in your ATMega168, right?
Unless the answer is "no", I'd post pics of the assembly, top and bottom.
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Re: Ice Tube producing wrong voltage at D3
well the knotch on the IC matches the silkscreen so I assume it is installed right.
http://img196.imageshack.us/img196/5633/cimg0468p.jpg
http://img196.imageshack.us/img196/5633/cimg0468p.jpg
- stinkbutt
- Posts: 593
- Joined: Wed Feb 17, 2010 2:40 am
Re: Ice Tube producing wrong voltage at D3
Everything looks to me like it's in the right place with no pieces left over. What about the underside?Myrtana wrote:well the knotch on the IC matches the silkscreen so I assume it is installed right.
http://img196.imageshack.us/img196/5633/cimg0468p.jpg
- adafruit_support_bill
- Posts: 88088
- Joined: Sat Feb 07, 2009 10:11 am
Re: Ice Tube producing wrong voltage at D3
Good call stinkbutt!the smart money says some time in the next 12 hours either adafruit or arduwino is going to post, asking you to post pictures of your assembly.
Myrtana: Nice clear image of the front! Another one like that of the back will let us check out the soldering.
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
- adafruit_support_bill
- Posts: 88088
- Joined: Sat Feb 07, 2009 10:11 am
Re: Ice Tube producing wrong voltage at D3
Soldering looks OK. Adafruit is currently at the HOPE conference. Maybe Lady Ada will have some diagnostic advice when she gets back.
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Re: Ice Tube producing wrong voltage at D3
Thanks for the advice so far, guys.
-
- Posts: 12151
- Joined: Thu Apr 06, 2006 4:21 pm
Re: Ice Tube producing wrong voltage at D3
does it beep?
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Re: Ice Tube producing wrong voltage at D3
It beeped during beep test but not at this point.
- stinkbutt
- Posts: 593
- Joined: Wed Feb 17, 2010 2:40 am
Re: Ice Tube producing wrong voltage at D3
It's supposed to beep on power up every time.
-
- Posts: 9
- Joined: Thu Jul 15, 2010 7:36 pm
Re: Ice Tube producing wrong voltage at D3
Alright, then. It doesn't beep. What should I do?
-
- Posts: 12151
- Joined: Thu Apr 06, 2006 4:21 pm
Re: Ice Tube producing wrong voltage at D3
the 100K resisitor was instead placed as a 10K
swap them and you'll find it working again
swap them and you'll find it working again
Please be positive and constructive with your questions and comments.