FantomXR

Thank you very much duggle! I'm happy now :)

Ah, got it! I adjusted the trimpot. Now I have 3.3V on pin 1 depressed and 0V when pressed! I think, this is how it should be, right?

In the meanwhile I checked with MIOS Studio and it's working really well now!! Thank you so much... that is awesome! :) But it seems that it makes no difference on which value I put the trimpot. It's now full turned "on" so 500k and it's working fine like this.

okay, I wired the 10k to GND. Now I measure 0,51V depressed and 0,01V pressed. But I connected the pot like a pot.... I change this... wait a second ;) //edit: Okay, I changed the wiring. One side of the pot goes to 3.3V, the wiper goes with 180k to LM and with 10k tied to ground. I measure 0,61V and 0,08V between GND and pin 3. I'm wondering what we want to reach or what do we want to get. I'm also not sure, what sense the trimpot has. By changing the trimpot, the voltages stay the same. Thanks for your help!

I added the pull up at first. On pin 3 I measure 0,61V depressed and 0,09V pressed. I will add the 10k between pin of trimpot and GND.

I don't have the 1k pullup. I will add this. I was not sure, if Rg2 is still necessary, because I use a trim pot. I can't see Rg2 in your examples too. But I can add this anyway.

I bought the parts today and put them together. Please see attachment. One side of the sensor goes to the LM, the other one to GND on the core. I double checked the connections on the board... With this circuit connected to the core I measure 0,75V between GND and wiper of the pot and 0,62V between GND and pin 2 of the LM. But I measure nothing between GND and pin 1. Even if I press and hold a key. Do you see a mistake?

Ah, okay! Now it's getting clear. To summarize the result: Rf = 1M Rg1 = 180k Rg2 = 10k R1 = 500k trimpot Correct? ;)

Hey! I measured 0,09V and 0,6V. I put it in your spreadsheet and I get 4900R as a result. So I just put the parts like in the blog entry example together and set the trimpot to 4900R. 3.3V on the schematic goes to 3.3V anywhere on the core. 5V on the schematic goes to 5V anywhere on the core. "Wiper" on the schematic goes to one side of the sensor. The other side is connected to ground. Is that correct? //edit: But why the second resistor (Rg1AMod) in the mod-wheel example?

Hey, of course, here is the excerpt of the schematic (bottom). @TK: That sounds interesting. I'll order a few and give you feedback as soon as they are arrived.

Hey! I don't have detailed informations too. Just the schematic, but it says nothing about the current... What do I have to do exactly by using an op-amp? Do you have a little schematic for that?

Do I need to "enable" 5V on J5 anywhere or should I use the 5V of a J8/9 instead?

I have the original schematic here. There is a little circuit, which amplifies the aftertouch signal and invert it afterwards. This circuit needs 15V. So I don't think, that 3,3V will damage the device... So, I should use a smaller resistor?

I measured: not pressed: 0,43V top: 0,30-0,33V middle: 0,13-0,15V other end: 0,05-0,07V Thank you!

I have no probs with Pitch and Mod too! I use also the core ADC for them... but with aftertouch it's more difficult... I will try, what you suggest.

Okay, I think, the best way is not to use the ICs on the PCB in my DX11 keyboard. Instead I connected the aftertouch stripe directly to the core. The strip has round about 150Ohm depressed. Pressed it goes to 20-30Ohm. I put J5.A0 of the core on one side of the strip and J5.VS on the other one. I put a 1k resistor between 3.3V and A0. To get values I can work with, I assigned J5.A0 to a cc-event. I set MIOS in debug mode and set the pinrange in the ngc-file. Now I get jittering values. Depressed I get values between 114-125, by pressing a key it jitters between 0-15. Is the jittering a problem of the AINs of the core? What do you recommend? I don't wanted to build in a AINSER64 just for one controller ;) So if there is another solution, I'd be happy to hear it. //edit: I saw there is a AINSER8. Is this available? Can't find it at AVIShowtech...

I solved the problem by using Midibox_NG. It seems, that it's not the same driver on NG and KB.

Hey people, for my keyboard project I'm not using a DIO-Matrix-Modul, but a DIN and a DOUT-Modul. I configured the KB-app like this (excerpt): [9275.100] kb 1 debug off [9275.100] kb 1 midi_ports 0x1011 [9275.100] kb 1 midi_chn 1 [9275.100] kb 1 note_offset 21 [9275.101] kb 1 rows 12 [9275.101] kb 1 velocity on [9275.101] kb 1 release_velocity off [9275.102] kb 1 optimized on [9275.102] kb 1 dout_sr1 1 [9275.102] kb 1 dout_sr2 2 [9275.103] kb 1 din_sr1 1 [9275.103] kb 1 din_sr2 2 [9275.103] kb 1 din_key_offset 40 So... I'm wondering, that I get "Note On"s too, if I use SR 3 and 4 of the first DOUT... why that? I thought, that they were "disabled". If not, is there a chance to disable them for the first kb? The reason why I'm asking this: The keyscanning of my keyboard is a bit tricky and this is the only solution I can get this to work. I want to use kb 1 and the first two SRs of the DOUT to scan all C#-F#, kb2 and the other two SRs to scan all Gs-Cs on my keyboard. The DINs are the same for both kbs. But if I configure the app like this, I get two notes everytime I hit one key... Thank you ! Chris

You don't need sockets on the core normally. If you want to have the LPC removable, you can put sockets under this one.

Hey, has anyone one or more core(s) left? :) I'm not just looking for the PCBs but for assembled cores too! Thank you, Chris

Really? Good to know. How come, that you know, that the electro has this adapter too? Maybe you can take a photo of it so we can re-create the PCB?

It's the same connector-system than on the TP40W. There is no schematic available. I have the password to access the fatar-files on their page, but there are just the schematics of the TP40. I found a picture of an opened Studiologic Numa Nano. You can see, that there is a little pcb, that adapts those foil-cables to normal ribbon-cables.

Hey, I hope you are well. I need help with my keyboard. I've got a Yamaha DX-11 keyboard here and also the schematic. I attached the necessary part (high resolution). A few months ago I had another Yamaha keyboard here and TK really helped me and developed a variable in the keyboard.c to make it work. On this DX-11 I also need to set this variable to 1. The problem: I connected B3 to O6 on my DIO-Matrix, N11 to I3 of SR1 and N1 to I3 of SR2. Now I've got key F1 working fine. The next step would be, to connect another row to the DIO. So I connected B4 to O5 to hopefully get key B1 running... not working. But... and here I start to wonder ... if I connect B4 to O4, the key B1 itself works fine, but because I "skipped" a DOUT-Pin MIOS thinks, I press key F2 and not B1. I know it seems complicated... to summarize: I need to "deactivate" all DOUT-Pins with uneven numbers and to tell the software, to continue pin-counting on every second DOUT-Pin. Everything else is working fine... just this little issue ;) I hope, you have any ideas... Thank you very much, Chris

Hey! I've got a fatar TP40W right in front of me and I hoped, to get it running, by using the adapter-schematics on the ucapps_kb website. But it seems, that the TP40W has another pinout than the other TP40s. I attached a schematic of the TP40GH. As you can see, on the left side the connector is not fully assigned. There are two pins, which are not connected to the keyboard. On my keyboard it seems, that every pin goes somewhere. I attached two pictures of the left and right 20pin-connector. I wrote an email to fatar a month ago... no answer ... I also contacted the German fatar-support Synthax. They can't help me too, because they have no documents about the TP40W. Meanwhile I ordered two flex cable and two connectors. I created a PCB based on this schematic: http://www.ucapps.de/midibox_kb/midibox_kb_fatar_df_88_interconnections.pdf I tried to connect this to the core, but it's not working... I've got really nothing out of it. So, my question is: What is the easiest way to find out, which pin on the connector of the fatar belongs to which pin on the DIO_Matrix? Thank you very much! Chris