you built what !?

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See, that’s what the app is perfect for.

Sounds perfect Wahhhh, I don’t wanna

itzbrizzay asked:

Hello shnatko,I have a few questions regarding the manual wire pin/port connections from the Arduino to the LED pcb and Mux pcb: ***I am using the Arduino Mega 2560***. (1) What pins on the arduino are used and where are they connected to on the LED pcb?(2) What are the physical wire connections between the pins on the LED pcb.(3) What pins on the arduino are used and where are they connected to on the MUX pcb?

Hello,

 The arduino has 4 main control ouptuts to the LED control board: latch, clock, data_in, and clear.  Those 4 pins connect to the first LED control board in the daisy chain.

The details of how the LED control boards are wired to the panel can be found mostly in this post.

https://shnatko.tumblr.com/post/122307677670/can-you-put-together-a-wiring-detail-of-the-panel

Regarding the mux board, the arduino drives the mux enable and control select lines and the mux boards output the mux readings back to analog input pins on the arduino.

arduino LED table electronics LED Matrix DIY Projects how to make it

Anonymous asked:

Hi, we are doing a similar project, and were wondering what material you used on top of the LED table? We're not sure what to use because clear plastics/glass reflect IR light, which wouldn't allow us to use IR emitters/receivers.

  Hey,

   The glass I used was clear tempered glass and also low iron ( which is less green tinted than standard clear glass ).  The IR LEDs / sensors are not very far in the infrared range that transmission through the glass is hampered as far as I can tell.  If the glass is too thick / tinted however it is possible there could be issues, I’m not sure.

thanks!

Anonymous asked:

Hi I would like to develop proximity led coffee table for my final year project. But I have a lot of questions for making. If possible can you send me the instructions to my email hostgatorpromotionatgmaildotcom. Thanks

Hello, I do not have a set of instructions I can send you. I tried to document the major sections of the project in detail in various blog posts. If you have specific questions do not hesitate to ask. I can answer them or point you to the relevant post. thanks!

Anonymous asked:

hello i"m Don from the netherlands and i have seen your video 10 times now from the rgb led table ,and i though i want to build the same table as you. with all the ir leds the interactive table but i don't no what i need for this. do you have a list from all the parts that i need and a drawing for to build 1 table (i Hope so) including the control boards. then i can order the parts. i hope that you will help me build this amazing table.... i hope hearing you soon thanks and greets Don

Hello,
I have a breakdown of the parts I used to build the table here: 

http://shnatko.tumblr.com/post/121756881235/led-table-parts-list

The list includes links to where I had ordered the parts from as well.  Many of the details of the build can be found in the blog but if you have a specific question, I can either answer it directly or point you to the appropriate post :) thanks!

LED table arduino LED Matrix electronics DIY Projects how to make it LED

Anonymous asked:

Hello Shnatko, I am really interested in trying out your entire interactive table project. Am I able to contact you through email ? I have a lot of queries to ask you as I am not well versed with all the micoprocessors. Hope you hear from you soon

Send me your email address in a private message if you would like to e-mail me.

Anonymous asked:

Thank you for explaining the LED wiring configuration, Could you perhaps explain the phototransistor and IR LED wiring in the same manor? I would appreciate it. Everything you have done is amazing!

There are 8 rows of photo transistors on the table. Each row contains 16 photo transistors.  Each photo transistor is wired with its collector pin soldered to a 5V bus wire and the emitter pin connected as an output to the ribbon cable which will carry the sensed voltage over to the analog mux PCB and eventually to the Arduino.  Here you can see the wiring for part of a row of photo transistors.

image

The IR LEDs are simpler because they just need to be powered on or off.  Each row if IR LEDs consists of 16 LEDs.  The row consists of 5 x 3 LEDs connected in series between a 5V bus wire and a ground wire plus a current limiting resistor.  The last LED in the row is wired on its own with a separate limiting resistor.  The circuit for 1 row basically looks like this ( actual resistor values may be different ).  There are 7 such rows on the table, one between each row of photo transistors.

image
LED table arduino LED Matrix electronics DIY Projects how to make it LED