Genie Update

RE: Genie Update

Jan Cumps — Sun, 26 Apr 2015 20:12:20 GMT

For the Internet of Holiday Lights game, I managed to use that shield with 3 common LEDs in series without a resistor. Less didn't work right.

You're realty scraping against the limits of the chip here, but it's doable.

RE: Genie Update

shabaz — Sun, 26 Apr 2015 10:54:21 GMT

Hi Parker,

What arrangement do you currently have, of LED and resistors? Will it act as a 300mA load at the voltage you mention?

I would expect the resistor to be smoking, unless you have a power resistor, since it would need to dissipate 2.5W to act as a load.

Also, to prevent distraction, what is your end goal with the Infineon board? Does the end goal just need a 20mA LED? If so, then this board is not needed.

If the end goal needs a 300mA LED, then the board might be needed. What is the actual requirement, i.e.

what voltage do you plan to use, and what LED or LEDs are you planning to drive?

RE: Genie Update

Workshopshed — Sun, 26 Apr 2015 08:47:00 GMT

Hi Parker, the board is expecting an LED with a higher junction voltage, perhaps 3 standard LEDs in series? Also you can dial down the current but I've not quite got my head around that part of the data sheet.