TinyCircuits

General Category => New Product Ideas => Topic started by: gerardf on October 24, 2012, 07:57:46 PM

Title: LED shield with 24 LED's
Post by: gerardf on October 24, 2012, 07:57:46 PM
It would be nice to have an LED shield with 12 or 24 LED's going all around for the end of a stack (so no connector is needed on the LED side.
Title: Re: LED shield with 24 LED's
Post by: calvinthedestroyer on July 24, 2013, 06:06:37 AM
Yeah that would be neat.
Title: Re: LED shield with 24 LED's
Post by: duncan on August 21, 2013, 08:39:45 AM
With an option for IR LEDs, I have an application that it would dovetail into very neatly...
Title: Re: LED shield with 24 LED's
Post by: Ironman11 on August 21, 2013, 11:49:24 AM
I could definitely use this. +1 vote
Title: Re: LED shield with 24 LED's
Post by: tinybuilder on March 01, 2014, 06:39:33 PM
On the topic of the LED board...

The Charlieplexing solution is great but perhaps even fewer pins can be used. By using a TI TLC59116 16-Channel Fm+ I2C-Bus Constant-Current LED Sink Driver ($3.23 and $1.25 in 1000 quantity [TI]), WiFi shield compatibility, Ethernet shield compatibility, Full Motor Shield capability, and other LED shields can be used with displaying different patterns, can be achieved!!

Peter Easton wrote code for using an Arduino to control LEDs using the TI TLC59116. The code can be found at https://github.com/engineertype/TLC59116/blob/master/TLC59116.ino (https://github.com/engineertype/TLC59116/blob/master/TLC59116.ino). A posting I found interesting about controlling LEDs with the TI TLC59116 is on the Arduino forum http://forum.arduino.cc/index.php?topic=97134.0 (http://forum.arduino.cc/index.php?topic=97134.0)

Making a version of this LED shield should be straightforward and there seems to be code for it available in the wild already.

TI TLC59116 Datasheet: http://www.ti.com/lit/ds/slds157d/slds157d.pdf

NOTE: See forum post http://forum.tiny-circuits.com/index.php?topic=170.msg651#msg651 (http://forum.tiny-circuits.com/index.php?topic=170.msg651#msg651) for more ideas.