matcom3 Posted November 28, 2014 Report Share Posted November 28, 2014 hi I´m having problems with the voltage of my midibox 64, at the output of the 7805 i have 5 volts perfect, but when i test the pots i have 4.8,the problem is at the maximum of the pot the box never send "127" the maximum is "126" its a problem for me because some of the controls need 127 value, how can i sove this?, im using a wall adapter of 9 volts 1200 miliamps, can solve the problem a higher voltave adapter?, i am using 58 pots on the box, maybe is the problem..... thanks Quote Link to comment Share on other sites More sharing options...
TK. Posted November 30, 2014 Report Share Posted November 30, 2014 Hi, are you using 10k or 1k pots? In any case, it could work better if you connect the Ground/5V lines of the pots to J2 of the core module. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
matcom3 Posted November 30, 2014 Author Report Share Posted November 30, 2014 (edited) im using 10k pots, its better to use 1k pots? Edited November 30, 2014 by matcom3 Quote Link to comment Share on other sites More sharing options...
TK. Posted December 1, 2014 Report Share Posted December 1, 2014 10k pots are fine, 1k pots would consume a bit more power which could explain the voltage drop of 0.2V So, I recommend to test the direct J2 connection. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
matcom3 Posted December 2, 2014 Author Report Share Posted December 2, 2014 Hi again and thank you for the awnser j2 its perfect 5 volts, the problem is the pot, 4.85 volts, how can i give more power to the output of the 7805? thank you Quote Link to comment Share on other sites More sharing options...
TK. Posted December 3, 2014 Report Share Posted December 3, 2014 My proposal was to connect the ground/5V cables of the pots to J2 Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
matcom3 Posted December 5, 2014 Author Report Share Posted December 5, 2014 hi again the pots are conected direct to j2 now and no diference.... any help? Quote Link to comment Share on other sites More sharing options...
TK. Posted December 7, 2014 Report Share Posted December 7, 2014 Could you please post a photo of your hardware (especially pot connections)? This could help to analyse the issue further. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.