Creating a Dead-Band or Filter around 0 "C"

Shawna · 2020-02-14 20:31

I want to setup a dead-band or filter for a variable in my program. I wrote code that works, but I was wondering if there is a simpler, cleaner or faster way than what I've come up with.

Here's my code:

temp = p_gx - p_gxOff;
if((temp < 10) && (temp > -10)) p_gx = 0;
else p_gx = temp;

Edit: If my variable is less than 10 and greater than -10, I want to set my variable to 0. Otherwise I will keep the value of the variable.

Thanks
Shawn A

Phil Pilgrim (PhiPi) · 2020-02-14 20:37

You could check for abs(temp) < 10 to save a step.

C also has a ternary operator:

p_gx = abs(temp) < 10 ? 0 : temp;

-Phil

Shawna · 2020-02-14 21:24

Thanks Phil, I will give those a try.

Creating a Dead-Band or Filter around 0 "C"

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