#18

Thanks all for the details, much appreciated!

#19

Is there a way to identify my TT, to see whether itā€™s a revised version?

#20

we havenā€™t shipped any revised units. those are what weā€™re shipping starting dec 3.

  • original: green pcb
  • new: black pcb
2 Likes
#22

so to clarify, If I was going to connect a

ā€¢Just Friends
ā€¢W/
ā€¢Ansible

to the new teletype with two i2c headers in the back. I can,

Chain 2 together with a cable with 2 headers,
connect the last 1 with a single cable.

1 Like
#23

each 2x3 header actually can be two connections since each has 2x GND SCL SDA. so the new TT has 4 connections, but you can also just daisy-chain from Ansible or JF etc.

i highly suggest people just get these: https://www.adafruit.com/product/1950

$2 gets you 8 or so sets of 3 cables. just be sure to line up the GND and youā€™re good.

but yes, your proposal would work also with two headers on one ribbon.

1 Like
#24

that makes sense. So could you use the 2x3 cable and just connect 3 of the pins on the header? or do you have to connect all 6 pins when using the 2x3 cable. Just got a bunch of 2x3 cables :smiley:

#25

Alright, for all newbies here is some info. (Latest Teletype hardware with 2 I2C pins in the back. no BACKPACK)

I have connected

  • Mannequins W/
  • Mannequins Just Friends
  • Monome ANSIBLE

to the Teletype.

Cables I used is these suggested: https://www.adafruit.com/product/1950

Here is my kit: https://www.modulargrid.net/e/racks/view/799580

I had to use the 12inch cable to get from Teletype to JustFriends. Also had to use a 12inch to get from JustFriends to W/

6inch was enough to get from Teletype to ANSIBLE.

Just friendly info if you are not connecting them directly next to each other.

Now to learning!

CHEERS!

3 Likes
#26

Sorry to bring this up again, but Iā€™d like to make sure Iā€™ve understood this correctly.

I have one 2x3 header on my Teletype. I can use one 3 wire ribbon (like I could get from that Adafruit product) to connect one GND SCL SDA set to Ansible, and another to connect to Just Friends.

Do I have that right?

1 Like
#27

Yes, that is correct.

1 Like
#28

Great, 20 characters of thanks!

1 Like
#29

Iā€™ve been trying to avoid too much extra cable spaghetti and as a result donā€™t want to power my grid separately if possible. A happy discovery I just made is that although my (green PCB) teletype canā€™t handle the latest Grid with very many LEDs lit up before it resets, it can handle my ancient walnut 64 (the ā€œseriesā€ edition, circa 2007) with all its LEDs lit up. Now, I can have my modern grid plugged into my ansible and my retro grid plugged into my teletype without needing to take up any extra power sockets. Just thought Iā€™d share this in case anyone else has an old grid sitting around.

(Btw: I used to get high pitched acoustic noise coming from my grid when it was powered from the modular, but now thatā€™s gone. Either my tinnitus has got worse and I canā€™t hear it any more - certainly possible - or some other module changes in my rack has fixed it. Ymmv.)

1 Like
#30

grids 64 are definitely very useful with teletype - the grid control mode was specifically designed to only use a 8x8 area.

3 Likes
#31

Any word on plugging in an old (greyscale I believe, non-varibright) 128 grid directly into teletype? My initial explorations with a few grid LEDs lit up work fine, as does grid control mode, but Iā€™m curious if itā€™s capable of having all LEDs lit or if thereā€™s a ceiling.

#32

no way to say for sure without trying - i would say if you have a script that potentially could result in many LEDs itā€™s best to power externally, especially if youā€™re planning to use it in a live setting.

2 Likes
#33

Thanks! Will experiment. I also have the potential to pick up one of your Two > One modules - in addition to being a keyboard/grid switch, is this a good solution for externally powering a grid?

#34

yep, it will provide power as well!

1 Like
#35

I have a new (black PBC) teletype. As far as I understand it, this hardware revision means that I wouldnā€™t need a backpack, right? But can a backpack be used with this version, and if so will it have any effect and which effect would that be?

#36

i am almost certain that the backpack will not fit the new TT. some connectors had to move around in order to fit two i2c headers on there. if youā€™re doing 1x3 connectors you can do 4 devices, and i do recommend chaining.

#37

Thanks!

That was my understanding as well, just wanted to make sureā€¦

#38

Just FYI: just for giggles, I tried putting a backpack on the newer, black pcb version of TT and it works just fine. A clean fit and consistent communication to Ansible, W/, and JF.