Comments on: Using an Arduino to control a blinkM with a photocell

By: An Arduino Pro Mini ultra-sonic beeping thingamajiggy- Coding Color

An Arduino Pro Mini ultra-sonic beeping thingamajiggy- Coding Color — Sat, 26 Jun 2010 04:10:00 +0000

[...] forward, lets add the BlinkM RGB Led. If you read my previous post on the BlinkM you will be familiar with the process. If not, grab your BlinkM and lets get familar with [...]

By: Photo cell | Garden Rock Lights

Photo cell | Garden Rock Lights — Sun, 20 Jun 2010 01:35:25 +0000

[...] Using an Arduino to control a blinkM with a photocell- Coding Color [...]

By: admin

admin — Thu, 10 Jun 2010 18:28:30 +0000

Hi Tod,
I’m honored! You are right, I overlooked the code, I’ll update my post.
M

By: Tod E. Kurt

Tod E. Kurt — Thu, 10 Jun 2010 18:17:07 +0000

Hi,
This is an excellent tutorial on how to set up an Arduino project and how to get a BlinkM going!

I think you can make the displayColor() function even smaller by removing the decToBcd() calls. BlinkM functions take regular values, you don’t need to convert them. So the function might look like:

void displayColor(int val)
{
switch(val)
{
case 0:
//0;34;102 Royal Blue 5
BlinkM_fadeToRGB(blinkm_addr, 0,34,102 );
ledState = 0;
break;
case 1:
//255;0;0 RED
BlinkM_fadeToRGB(blinkm_addr, 255,0,0 );
ledState = 1;
break;
}
}