Pages: [1]   Go Down
Author Topic: Colorduino Problem  (Read 354 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 6
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Bought an Arduino Mega 2560 and two Colorduinos for a project.
I connected
Arduino -> Colorduino
SCL >> SCL
SDA >> SDA
GND >> GND
5V >> VDD
RESET >> DTR

I connect the USB and the Colorduino runs its DEMO.
I tried the ColourduinoPlasma program. I compiles (once the right libraries are there) and uploads without error but the Colorduino (after a reset)  just continues its DEMO. Same with both Colorduinos.

I tried the IC2 Scanner. It says "No IC2 devices found". Same with both Colorduinos.

I figured it was unlikely that both Colorduinos are faulty so I bought another Arduino Mega 2560. Exactly the same.

So I am doing something wrong.
Can anyone help?

Steve
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 6
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I figured there must be a problem with the Colorduinos, they were both from the same supplier and called "Funduino V1.A".
So I ordered two more from another supplier.
They arrived to day and are marked "Colorduino v1.3".

They run a different onboard DEMO but, again, will not respond to any of the Colorduino examples I have found; LED_Arduino_V1_0, ColorduinoPlasma, ColorshieldDemo, ColorduinoExample.

I am using the Arduino 1.0.5-r2 IDE.

Please can someone help.

Steve
Logged

Pacific NorthWet
Offline Offline
Newbie
*
Karma: 0
Posts: 8
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Oh No!!
I just bought a Colorduino and RGB matrix from eBay.
Wondering if I'll have the same issues...
Logged

Jumpers once dropped will never be found

Belgium
Offline Offline
Sr. Member
****
Karma: 1
Posts: 278
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Why have you connected the Colorduino to another Arduino? The colorduino has its own ATmega micro controller. You just have to upload the sketch to the colorduino not to the other Arduino...
You can connect several colorduinos together over I2C. But you don't need another Arduino for that.
Logged


Offline Offline
Newbie
*
Karma: 0
Posts: 6
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi Bajdi,
I want use an Arduino to control multiple Colorduinos using I2C.
I assumed one can just talk to the Colorduinos from the Arduino and tell them what to do.
I have now figured out that the firmware that the Colorduinos come with has the I2C interface disabled. So I have to change the firmware. And to do that I need a FTDI USB to serial module. Then I can use the Arduino IDE to change the Colorduino firmware, enable the I2C interface and give each an I2C address.
I have an FTDI module on order and I am impatiently waiting for it to arrive.

Foxfur, Hope this helps you.

Steve
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 6
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

My FTDI card arrived!
I am using the "colorduino 12c demo" from code.google.com but I was getting errors with the "colorduino_firmware_v1.1.pde" file. I found in Nick's blog "http://123led.wordpress.com/colorduino/" some corrections (by Jarda) that are needed. Once corrected I uploaded the data to my Colorduinos and they now respond their I2C addresses!
Phew!
Now I can have fun with my own pictures and effects.

Steve
Logged

Pages: [1]   Go Up
Jump to: