#45

@toneburst I literally just finished my first teletype. I recycled all the expensive components from a fail build (pcb was not right) and i build a frankenstein today.

Flashing was fine. I downloaded the latest firmware, there is a update command inside the zip file and it flashed the mcu :slight_smile: think you need to download dfu programmer, but its all very clear on the monome website.

I struggled with the lcd height though…if i laid it on top of the pins, the jacks did not reach properly. Had to improvise a lot! I got some diode legs and cut them to the right height and soldered them to lcd to after.

The original teletype has a protecting screen between the lcd and the pcb.

Had to try different spacers combinations to get it mostly right.

Had not tested the dac or trigger inputs yet but its seems to be working ok to the keyboard commands and importing scenes.

Hopefully the next teletype build wont be such a challenge :slight_smile:

Pm me if you need any more help with your build :slight_smile:

Cheers

2 Likes
#46

Cool, glad you got it mostly working, anyway. I haven’t got a board, yet. Been making up a Norns Shield and Fates, but Teletype will be my next project, probably.

1 Like
#47

@toneburst I’ve got a spare pcb - and I owe you one… :slight_smile:

#48

Oh, cool, that’s a very generous offer!

I’m a little scared of 0402 though, I have to say.

#49

0402 is fine - I often prefer it - the build can be faster… pm me your address if you want one - I’ve not even opened the packaging yet! Will order parts in the next week or two…

#50

The encoder doesn’t seem to be in the BOM at all. Anyone got a part# for it?

#51

normal 10k lin alpha 9mm pot

#52

Oh, thought it was an encoder. Linear, I guess, since it’s for data-entry (I assume).

#53

Yes, linear :slight_smile:

#54

Does anyone know the resistor values for R43, and R44?

Also, @tehn the manufacturer number for the 1K 0402 resistors in the octopart BoM is the same as the one for the 10K resistors.

#55

43 & 44 are 39 ohms me thinks

#56

Are they in the BoM? I can’t see any 39ohm resistors in there

#57

Nope, they are on the eagle files :slight_smile:

1 Like
#58

So the BOM is missing parts, then… that’s annoying.

#59

I thinks its the only missing parts in the bom :wink:

1 Like
#60

rather than get annoyed, how about help by sending an email or opening a git issue?

open source is not a product: it requires more gratitude and less entitlement.

22 Likes
#61

thanks for the heads up, i’ll get it corrected tomorrow.

2 Likes
#62

Good points. I’m really sorry.

#63

Just finished this build, and succesfully flashed it! Unfortunately still waiting on a screen, so not able to see if it’s fully functional. Quick question though - I’m not 100% sure I put the white LED’s on the correct way around - I matched the little dot on the back with the dash on the silkscreen. When I power it on however, I just get the top (yellow) row of LED’s lighting up in increasing brightness.

I’d like to know if these white LED’s should be lit before I solder all the jacks on, because it’ll be a nightmare getting to them with the jacks in the way!

Thanks a lot :slight_smile:

#64

I think that is normal behaviour.
The anode of the led is the part of the smd led that has a t line (in my case) underneath the led, the part with the beginning of the t is the anode.

image

Im not in front on the computer but seem to remember all leds are orientated the same way, and i seem to remember anode pointing towards the bottom of the pcb, where the usb plug is.

Please double check, it’s all from memory :slight_smile:

If it’s a new chip you need to load presets via a usb stick

1 Like