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Tony's Comment

Mon, 16 Apr 2018 04:47:17 +0100

One quick question. How does the LCD know what to do? How do you make that connection from the Arduino to the LCD? That's the part I'm having trouble with, I can't figure out what pins from the Arduino that I need to connect to the LCD then the LCD to the Ultrasonic sensor

Pavan kumar's Comment

Sat, 19 Aug 2017 09:00:41 +0100

HI,
I was wondering if the same code can be used with a normal 16X2 lcd which comes without the keypad shield. What are the changes I need to do in order to make the same project run on a normal 16X2 display?
Thanks

MrMaint's Comment

Wed, 23 Nov 2016 19:29:05 +0000

Very nice presentation. I think there are a couple of areas where you could simplify your code without changing it's function.

Your 50us pulse is going to be high then low, then high, then low every 50us. Your call to your routine is nice, but the routine could be simplified...

void trigger_pulse()
{
static volatile bool state=0;
state=1-state;digitalWrite(trigPin,state);
}

And your routine for weighting the hits...

for(i=0,i{
if(i!=found_hit)
{
range_hits[i]=range_hits[i]-1;
} else
{
range_hits[i]=range_hits[i]+3;
}
}

Steve's Comment

Sun, 31 Jan 2016 13:36:11 +0000

Hi Bob,

I'm pleased the article has helped. I would be very interested to see how your project turns out.

Steve

Bob Jones's Comment

Wed, 27 Jan 2016 01:41:29 +0000

This code was just what I was looking for and then some. I am building some robot classes and needed logic like this to handle my obstacle sensor.

The inclusion of the LCD code got me over another hump as well.

I will be "cleaning up" this example to encapsulate its functionality a bit better and then incorporating it into my robot code. I will post what I have once it's working.