Comments on: Arduino – Sonic range finder with SRF05

By: lee

lee — Tue, 24 Apr 2012 07:36:44 +0000

how about we use Ping ultrasonic sensor which have only 3 pin??how it connection??

By: teejay

teejay — Sat, 07 Apr 2012 10:03:23 +0000

Great – works a treat – thanks for sharing…

By: Lemorlenny

Lemorlenny — Tue, 21 Feb 2012 17:40:36 +0000

Beware the SRF pins, mine have pins in reverse order than your pics!.

By: Costyn

Costyn — Fri, 19 Aug 2011 09:43:41 +0000

I’ve been puzzling over this a while too, but I think I finally get it. What is stored in the array is the 10 readings from the previous 10 cycles. In each cycle the current reading is averaged with the reading of 10 cycles ago.

By: Martini

Martini — Mon, 08 Aug 2011 03:37:21 +0000

Hi larry, I’m pretty interesting in building my own experimental produce but to start with, I stayed in Singapore. How do i get my hands on Arduino chip and SRF05?

Is there like a website that deals international orders?

Thank you!

By: Bryce

Bryce — Wed, 06 Jul 2011 05:23:12 +0000

Hey Larry,

can you explain how these lines work?

total= total – readings[arrayIndex]; // subtract the last distance
readings[arrayIndex] = distance; // add distance reading to array
total= total + readings[arrayIndex]; // add the reading to the total

won’t the total always be readings zero? I’ve ran your code and I can see that it doesn’t but this just doesnt make sense to me.

Thanks

By: SRF05 Ultrasonic

SRF05 Ultrasonic — Tue, 15 Feb 2011 21:04:50 +0000

[...] experimenters and not robotics people, so screw ‘em. I stole the timing algorithm from the luckylarry.co.uk website, just like pretty much everyone else who uses the SRF05. Good old Lucky Larry was the only [...]

By: larry

larry — Sat, 08 Jan 2011 11:01:49 +0000

Should do, just depends on the pin configuration as I think the SRF10 use only one set of pins for both echo and trigger.

By: Martin Su

Martin Su — Wed, 17 Nov 2010 16:48:56 +0000

Hi Larry,

Just wondering, would this same sketch work with the SRF10 Ultrasonic Sensor?

By: larry

larry — Sun, 24 Jan 2010 19:21:52 +0000

Hey Lorenc,

I’ve got a Wii myself but I’ve not tried working with the controllers yet. I see a few tutorials online though – I guess its a case of receiving the signal from the Wii controller so you’ll need an RF receiver (not IR) the sensor bar doesnt receive data from the Wii controller, it sends it. You can disconnect the Wii sensor bar and use TV remotes, IR leds etc… instead and the Wii controller will still work. The IR bit in the controller is actually an IR camera! cool huh?

Check this out: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1172459283

And: http://www.windmeadow.com/node/45

Loads of stuff already online about Arduino and Wii.

Looks like you can plug the wiimote in by using the expansion port – the bit where you connect the nunchuck to the Wiimote, if you take the plug off you’ll have 6 pins that you can wire into Arduino.

BUT – I reckon there must be a way of receiving the RF signal from the remote which would be better. Can’t think of how else the signal is sent wirelessly other than RF.

Good luck! Let me know how you get on as I’ve yet to try doing any of this myself.

Larry