CSC Posted December 29, 2010 Report Share Posted December 29, 2010 Hello everyone, have to build a MIDI controller without Motorfader with STM32 Board. My question is now. How many DINX4, DOUTX4 and AINX4 modules can I add the Board maximum? I know 4 x DINX4, 4 x DOUTX4 options and others. But what maximum integration is possible? Thank you. Something like: STM32 Board i can add maximum ( )x DINX4; ( )x DOUTX4; ( )x AINX4 Modules or i can add maximum ( )x Pots, ( )x Knobs, ( )x LEDs, ( )x Encoder,( )LED Rings with ( )LEDs, GERMAN TRANSLATION: Hallo zusammen, habe vor einen Midi Controller ohne Motorfader mit dem STM32 Board zu bauen. Meine Frage ist jetzt. Wieviele DINX4-, DOUTX4- und AINX4-Module kann ich dem Board maximal hinzufügen? Ich kenne die Optionen von 4x DINX4, 4x DOUTX4 und andere. Aber, welche maximale anbindung ist möglich? Danke. STM32 Board mit maximal ( )x DINX4; ( )x DOUTX4; ( )x AINX4 Modules oder mit maximal ( )x Pots, ( )x Knobs, ( )x LEDs, ( )x Encoder,( )LED Rings with ( )LEDs, 1 Quote Link to comment Share on other sites More sharing options...
TK. Posted December 29, 2010 Report Share Posted December 29, 2010 As long as you don't connect a SD Card or MBHP_ETH interface to J16: - up to 4 DINX4 - up to 4 DOUTX4 - up to 4 AINX4 Number of buttons/encoders/LED rings only limited by the application you will program by yourself. E.g. if you would multiplex 2x2 DOUT SRs to a 16x16 matrix, you could easily control 256 LEDs If you duplicate this multiplexing to 8x2x2 DOUT SRs to 8 16x16 matrices, you could control 2048 LEDs If it makes sense or not would be your own decision - thats one of the reasons why you will never get a straightforward answer. It would be easier for us to give you a helpful answer if you would introduce your plans (and maybe also a bit of your programming knowledge) first and ask for a feasible partitioning of available resources. Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
CSC Posted December 29, 2010 Author Report Share Posted December 29, 2010 Thanks, that i want to know. The English Conversation is not very easy, so there are many mistakes in reading and understanding. But this post is very useful. Quote Link to comment Share on other sites More sharing options...
TK. Posted December 29, 2010 Report Share Posted December 29, 2010 You can continue in german if you want. Man spricht Deutsh. ;) Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
CSC Posted January 17, 2011 Author Report Share Posted January 17, 2011 (edited) Werde bald mein Projekt anfangen. Habe nur noch ein kleines Problem. Habe vor kurzem etwas über Widerstandswerte gelesen. Wie sieht das bei der benutzung der AIN Kanäle aus? Kann ich die Potis auch in ein Matrix schaltung einbinden oder werden dann die einzelnen werte verfälscht? oder summieren diese sich? Um zu wissen was ich bestellen kann müsste dies leider auch noch wissen. Welche Widerstandswerte kauft man am besten? für AIN - Potis für AIN - Trimmpoti für DIN - Taster für DIN - Encoder Könnte Trimm- und Potis mit 10 kohm bekommen? Wäre diese Okay für die Schaltung? Danke. Edited January 17, 2011 by CSC Quote Link to comment Share on other sites More sharing options...
nILS Posted January 17, 2011 Report Share Posted January 17, 2011 Taster und Encoeder haben nicht wirklich einen Widerstand. Der ist im Prinzip unendlich oder 0. Könnte Trimm- und Potis mit 10 kohm bekommen? Wäre diese Okay für die Schaltung? Könnte? Kannst. Die AINs vertragen sich mit 10k (linear) am besten. Kann ich die Potis auch in ein Matrix schaltung einbinden oder werden dann die einzelnen werte verfälscht? oder summieren diese sich? Was meinst Du denn mit Matrix? Alle Pin 1 (CW) kriegen 5V, alle Pin 3 (CCW) kriegen Masse und alle Wiper gehen einzeln an die AINs. Quote Link to comment Share on other sites More sharing options...
CSC Posted January 17, 2011 Author Report Share Posted January 17, 2011 Bei Ebay gibts wieder welche mit mittenrastung. 10k ALPS 20 Stk. 6 EURO. AIN input wurde gerade verstanden. d.H. max. 128 Potis oder Fader an 4 AIN Module. Na dann. Mal sehen was ich tun kann ( Ausser lernen! ) Quote Link to comment Share on other sites More sharing options...
CSC Posted March 7, 2011 Author Report Share Posted March 7, 2011 (edited) Hallo Back, i have tell you a question to the maximum usage. I have completed the STM32 PCB Mounting and already 1 AINX4 Module. Now, i have readed some threads, but i don´t find something about the connection for the fourth AIN Module. You have tell me, that i can concect 4 AINX4 Modules when i don´t connect, SD Card or the Interface. Can you tell me were i have to connect the fourth Module to the STM32 Board? And here is a little Piture of the Project i have to make.... Thanks for answering! Edited March 7, 2011 by CSC Quote Link to comment Share on other sites More sharing options...
TK. Posted March 7, 2011 Report Share Posted March 7, 2011 The remaining 4 analog pins have to be connected to J16.RC (AIN12), J16.SC (AIN13), J16.SI (AIN14), J16.SO (AIN15) Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
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