i think i got it.... the pulses are to drive a dose pump on my preheater, also whi i made it off topic.... <br><br>the pump requires pulsing dc to work, its a kind of safety feature in case electronics get stuck.<br><br>my whole idea is to create something that is a bit more modern than it was back in the 90's<br>
<br>i have a gsm module so thought of using that too along with a rfm module for short range coms and maybe even for the control panel inside the car avoiding as much wireing i can<br><br>i have made a rough draft in eagle for the new electronics and also an sketch but not sure if that is ok yet.... still need some more bits so i can build up a prototype with the mega i have<br>
<br>plan for today is to build some simple webpage i can use to share from... any suggestions? wordpress etc?<br><br>/bo<br><br><div class="gmail_quote">2013/5/29 Mike Stirling <span dir="ltr"><<a href="mailto:mail@mikestirling.co.uk" target="_blank">mail@mikestirling.co.uk</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Did you get this sorted? What are the pulses for, and how accurately timed do they need to be? Is lowest possible power consumption actually a requirement?<br>
<p>----------------original message----------------- <br>
From: "Bo Herrmannsen" <<a href="mailto:bo.herrmannsen@gmail.com" target="_blank">bo.herrmannsen@gmail.com</a>> <br>
To: "Closed list for developer discussions" <<a href="mailto:opentrv-dev@lists.opentrv.org.uk" target="_blank">opentrv-dev@lists.opentrv.org.uk</a>> <br>
Date: Tue, 28 May 2013 20:59:29 +0200 <br>
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<blockquote type="cite"><br>
i was given this example: <a href="http://arduino.cc/en/Tutorial/BlinkWithoutDelay" target="_blank">http://arduino.cc/en/Tutorial/BlinkWithoutDelay</a><br>
<br>
<br>
but is there a way to call this and just give it a i number like analogwrite?<br>
<br>
/bo<br>
<br>
<div>2013/5/26 Damon Hart-Davis <span><<a href="mailto:dhd@exnet.com" target="_blank">dhd@exnet.com</a>></span><br>
<blockquote class="gmail_quote"> Duty cycle is the fraction of the time the output is HIGH and is nominally independent of the frequency.<br>
<br>
Rgds<br>
<br>
Damon<br>
<br>
<br>
On 26 May 2013, at 19:15, Bo Herrmannsen wrote:<br>
<br>
> Hi<br>
><br>
> fighting a small thing here... i know i can use the pwm out for pulses... but how do i know for sure it gives say 3 pulses a sec? i calced something about a duty cycle of 50-60%<br>
><br>
> but is there a more precise way?<br>
><br>
><br>
> /bo<br>
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