Latest MegaDrum schematics. 32 inputs.

[abhi]

Dear Dmitri,
While going through forums, I found that there are multiple versions of boards available:
1) Separate analog and digital board
2) One consolidated main board
3) Add-on card for positional sensing
4) PCB with through hole components
5) Board with SMD components with various versions

With so many versions I got confused and was not sure which version to use for my requirement. I want to make a midi-drum trigger (32 inputs) with positional sensing support. Here are my questions:
a) Is there a consolidated version of board available with positional sensing support? Or will I have to use add-on card?
b) Which version of board/PCB design/firmware should I follow? Can you point me to the latest design?

Thanks & regards,
Abhi

[dmitri]

Schematics and PCBs in this topic are the only DIY designs tested and supported by me. I did not publish PCB designs with SMD components anywhere in the forum as SMD is not suitable for regular DIYer. PCB for Positional sensing addon with precision rectifiers you will have to design yourself using available schematic.

[abhi]

hi dmitri

thnaks for IC atmega644 bootloader

am close to finish MD please help me for some topics ahead .....

i am using firmware ver. megadrum644_16_32_20091217

for 32 input and MCT

is that latest firmware for 32 i/p?

i found F/W with .hex and .syx

so could not burn IC through MD manager

even i can run MD manager only when PC is online

for offline use got that .jar files but those are not executing any how

so help me to get offline MDM and F/W with .bin for 32 i/p, megadrum644, 16 Mhz

[dmitri]

Sorry, I didn't get it. What is the question?

[abhi]

sorry for inconvenience

My English is not good enough

please give me exact links for . . .

1] Latest firmwear of Atmega644, 32 input, 16 Mhz.
(for now i am using megadrum644_16_32_20091217)

and

2] Offline installer of megadrum manager.
("mdm.jnlp" execute only while PC is online)

[dmitri]

sorry for inconvenience

My English is not good enough

please give me exact links for . . .

1] Latest firmwear of Atmega644, 32 input, 16 Mhz.
(for now i am using megadrum644_16_32_20091217)

http://www.megadrum.info/forums/viewtopic.php?f=3&t=440

and

2] Offline installer of megadrum manager.
("mdm.jnlp" execute only while PC is online)

This question is not posted in the right place of the forum. Once you run it online, it will install itself locally and it can be started offline.

[istan]

hi,

i just wonder, how to ground pad connector 2?

[dmitri]

From the ground on the pad connector 1.

[redbullah]

hey people,

i've noticed a 1k2 resistor in the digital board schematic. it's not listed in neither http://www.megadrum.info/content/buying-components nor viewtopic.php?f=3&t=275&hilit=4051...

i wonder if there are any other differences? or are there any version differences that i'm not aware? i'm going to order parts so i thought i'd better ask beforehand.

[dmitri]

Those links were created as an advice/pointer where it is possible to find components. The schematic has the most up-to-date list of components.