I have 2 questions:
1) I put it together and it seems to work EXCEPT the only button that does anything is "Menu". "Set" and "+" seem to be non-functional. Has anyone else had this problem? I'll probably have to take it apart anyway since I read here after assembling it that I should add the extra 10K resistor on R10.
2) Can I write programs in the Arduino IDE and load them into this? The C programming looks much more difficult.
Two questions about Monochron
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Please be positive and constructive with your questions and comments.
- adafruit_support_bill
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Re: Two questions about Monochron
If you post photos of the front and back of the board, we'll check over your assembly.
It is possible to program this with the Arduino IDE. See this thread for details: http://forums.adafruit.com/viewtopic.ph ... 3&p=113194
It is possible to program this with the Arduino IDE. See this thread for details: http://forums.adafruit.com/viewtopic.ph ... 3&p=113194
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Re: Two questions about Monochron
Thanks for the help, I haven't had time to go into detail on the Arduino IDE, but here are the front and back. I still need to add R10.
- adafruit_support_bill
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Re: Two questions about Monochron
The soldering on the board looks very good. I don't see any problems there. If you have a multimeter, check the set and +/- buttons to see if there is continuity when they are pressed.
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Re: Two questions about Monochron
I have continuity on all 3 buttons. I downloaded the schematic, but I don't have a way to view it. Is there a .pdf somewhere?
- adafruit_support_bill
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Re: Two questions about Monochron
You can view the schematics in EagleCad which is a free download: http://www.cadsoftusa.com/download-eagle/
Details from the schematic are explained in the Design page of the tutorial: https://learn.adafruit.com/monochron/design
Double check your soldering on resistors R3-R6. I don't see any obvious problems in the photos, but an up-close inspection might reveal a cold-joint or two. Any problem in that resistor ladder could explain button problems.
Check this guide for tips on identifying and correcting soldering problems. http://learn.adafruit.com/adafruit-guid ... n-problems
Details from the schematic are explained in the Design page of the tutorial: https://learn.adafruit.com/monochron/design
Double check your soldering on resistors R3-R6. I don't see any obvious problems in the photos, but an up-close inspection might reveal a cold-joint or two. Any problem in that resistor ladder could explain button problems.
Check this guide for tips on identifying and correcting soldering problems. http://learn.adafruit.com/adafruit-guid ... n-problems
- coinop29
- Posts: 25
- Joined: Thu Aug 10, 2017 9:44 pm
Re: Two questions about Monochron
I just soldered together the MONOCRON but I'm not getting any power into the board. I tested the power supply and it's working but the LED isn't lighting up and the screen won't startup.
One thing I noticed is that R10 wasn't in the tutorial but there was an extra resistor in the kit so I put it there. Is this wrong?
Attached is a pic of my board - the R2' resistor is a bit bent because i moved it to the R2' after putting it in the wrong slot by mistake.
Any ideas why this isn't working?
thanks in advance..
-Jonah
One thing I noticed is that R10 wasn't in the tutorial but there was an extra resistor in the kit so I put it there. Is this wrong?
Attached is a pic of my board - the R2' resistor is a bit bent because i moved it to the R2' after putting it in the wrong slot by mistake.
Any ideas why this isn't working?
thanks in advance..
-Jonah
- adafruit_support_bill
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- Joined: Sat Feb 07, 2009 10:11 am
Re: Two questions about Monochron
Please post a photo showing the solder-side of the board.
- coinop29
- Posts: 25
- Joined: Thu Aug 10, 2017 9:44 pm
Re: Two questions about Monochron
Thanks for getting back to me.. Here's a pic of the solder side. Still not getting any power into the board.
- adafruit_support_bill
- Posts: 88155
- Joined: Sat Feb 07, 2009 10:11 am
Re: Two questions about Monochron
On the front of the board there is a large rectangular marking labeled "IC2'" with 3 solder bads below it.
Measure the voltage between the center and left pads.
Then measure the voltage between the center and right pads.
Measure the voltage between the center and left pads.
Then measure the voltage between the center and right pads.
- coinop29
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- Joined: Thu Aug 10, 2017 9:44 pm
Re: Two questions about Monochron
measured the voltage - I'm getting 7.8 volts... should it be 9?
- adafruit_support_bill
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Re: Two questions about Monochron
7.8 volts where? We need to know both measurements.
Measure the voltage between the center and left pads.
Then measure the voltage between the center and right pads.
- coinop29
- Posts: 25
- Joined: Thu Aug 10, 2017 9:44 pm
Re: Two questions about Monochron
ok here it is...
voltage between center and left = 8.53 volts
voltage between center and right = .642 volts
voltage between center and left = 8.53 volts
voltage between center and right = .642 volts
- adafruit_support_bill
- Posts: 88155
- Joined: Sat Feb 07, 2009 10:11 am
Re: Two questions about Monochron
You should be seeing 5v on the right-hand side. .642 volts indicates a problem with the voltage regulator - or a short circuit. Is the voltage regulator (the 3-legged black component labeled "IC2") getting hot?
- coinop29
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- Joined: Thu Aug 10, 2017 9:44 pm
Re: Two questions about Monochron
Just tested it again, re-soldered the leads on the voltage regulator as well.. it's not getting hot but still not getting any power into the board. Maybe it's a defect in the PCB? Can I return it?
Please be positive and constructive with your questions and comments.