Hey guys!
I'm thinking of doing a project inspired by Adafruits LED sneaker project. BUT I'm going to try to make it a lot cheaper.
Instead of adafruits Flora I will use an Attiny85 programmed with an Arduino Uno and instead of their LED strip I will use a 12V RGB Led strip.
My BOM looks like this(excluding the Attiny85, soldering iron, etc.) 8*AA battery holder, I might try with 9Volts also,6*AA battery holder RGB LED strip 5m STP16NF06 transistor to control the RGB channels 5V voltage regulator to reduce the voltage to the Attiny85
(Velostat/Linqstat) for an easy pressure sensor.
Now I have two questions to you guys out there!
Will the Attiny85 be able to pass enough voltage/current to control the STP16NF06 transistor?
Where can I find velostat/linqstat or anything like this material?
raschemmel:
You can only sink 9A current if you are applying a 5V signal from the ATtiny85 directly to the gate of the MOSFET (NOT TRANSISTOR !).
So you say that with an attiny85 I can make the MOSFET let through a maximum of 9A , which is more than enough current for one channel of the LED strip?
I'm planning on using a PWM signal to the MOSFET to make the RGB fade. I understand that a PWM signal is just a modulated high and low signal but would that work with the Attiny85 and the LED strip?
I also just want to point on my second question, does anyone know where I can buy material with the same properties as Velostat/Linqstat?
Yep that's true but you can also use one pin for software PWM. like in this tutorial.
So two real pwm pins and one software pwm pin. AND one pin for reading the analog value from the velostat/linqsat pressure sensor in the shoe. Where can I find this kind of material? (:
Thanks again! cheers!
Anyone out there who could verify if this would work? (:
I'm planning on getting a cheap accelerometer with analog outputs instead of the velostat sensor. (: