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1  Using Arduino / Project Guidance / Re: temp regulating and timing module 16x2 lcd on: September 26, 2013, 06:00:29 am
im still a noob..... so alot of this is still very new to me.
2  Using Arduino / Project Guidance / temp regulating and timing module 16x2 lcd on: September 26, 2013, 03:05:52 am
iv been playing with a few ideas but cant quite get it all to work together.
module should have inputs from a lm 35 and a probe.

outputs should be LCD and ssr to switch an external supply.

here is what i am after.

lm35 measures temp
probe measures coolant level (input is pulled up when water is low and pulled down when water level is fine)

the lcd should display coolant temp, overtemp warning at a given temp and coolant low warning if coolant is low.
ssr should switch on at a set temp to turn on a cooling fan (i had this work linear to temp in a given range, but even on and off will work)

i get most of this working correctly but there are a few features i want to add and i want to be able to use a push-button to scroll through the other readings.

line 0 on the display should be reserved for temp reading and warnings only.

line 1 on the display i want to add the following and be able to scroll through them by push button.

total run time in hours (minute increments) ... this must be saved to rom somehow so that the run time is never lost.
run time since last reset in hours (minute increments) .. this must also be saved to rom so that it is not lost if there is power lost , but must be resistible somehow.
cycle time in minutes (second increments) should work something like a stop watch. push button to start and stop and saves last 10  cycle times to rom for review.

im not sure if all of this is going to require a real time clock though ??

3  Community / Bar Sport / safety of disclosure on: December 04, 2012, 12:18:38 am
Just wanted to hear your thoughts on this one. Maybe some of you have had experiences you can share.

How risky is it getting someone involeved in a project, reason for asking is that someone like me who knows what he wants but is still learning to program has no choice but to share his ideas with others and get them involved in helping develop your project.......... Who's to say that person doesn't just take your idea and run ?..... Particularly considering that person may be able to do it all an their own.....

Just asking ?
4  Community / Gigs and Collaborations / Re: can't do it on my own just yet on: December 03, 2012, 02:01:10 pm
LOL!!!! i need to remember that one
5  Community / Gigs and Collaborations / Re: can't do it on my own just yet on: December 03, 2012, 12:22:04 pm
excuse the terrible spelling etc.............. this is what happens when the wife keeps chasing you away from your oc to do stuff...... I keep telling her that if i say im going to do something, i will do it! she doesnt need to keep reminding me every six months
6  Community / Gigs and Collaborations / Re: can't do it on my own just yet on: December 03, 2012, 11:43:55 am
Well i have 2 projects that i have been working on for sometime now, the one we are discussing now and another is a more application spacific project that we can discuss later if you are interested.

Im a qualified electrician and my electronics knowledge isnt bad, so i know what i want to do and i can find my way around all the electronics to do it, but im new to programming micro controllers and i dont want my projects to sit on the shelf until im a better programmer.

so i need someone to help me with the program. i can guarentee that either of these projects will take off and become lucrative, but a deal can be made incase they do  smiley-cool....... i would like to stay as involved as possible in the development of the sketch so that i can learn to arduino / C in the process as well. needless to say then that the person that decides to help me is going to need to be fairly patient  smiley-red

iv done good research and can offer accurate information regarding variables etc for both projects (everything necessary outside the arduino itself) and i have access to a 3d cnc machine to make the housings etc> i just really need help with the program.
7  Community / Gigs and Collaborations / Re: can't do it on my own just yet on: December 03, 2012, 09:02:31 am
Correct......I also forgot to mention what's supposed to happen when water level is low....... Red led on, Count 10 seconds then digital write to transistor output 2 as well (system shut down)

Once temp and water level return to correct green led on again and so on, I'm guessing that would happen automatically in the loop though..
8  Using Arduino / Project Guidance / Re: pin 5 random flash on: December 03, 2012, 08:08:53 am
Thanks for the advice, I tried all kinds of things to get it right, its def not the wiring, I eventually gave up and tried some other projects. I'll post the code when I get home tonight. I found that even if I made a simple code to make pin 5 output high on its own (with all other circuitry still connected) the problem persisted, but if I simply disconnected all other circuitry and just left the led and resistor connected to pin five it worked fine..... Strange problem.... When its happening it looks like pin 5 is running its awn blink code in the backround
9  Community / Gigs and Collaborations / can't do it on my own just yet on: December 03, 2012, 05:26:40 am
Good Day everyone.
I got all the tools I need to do my project except the programming know how, I did write a few basic programs to test the different functions I want to perform and it all works great, ARDUINO RULES!.... But I don't know how to incorperate it all into one smooth running program so that I can prototype it. Basically the inputs are a copper probe in water ( I just used a 1M pull up resistor to detect when probe is no longer touching water) and a LM35.

Outputs are 2 leds, (or one red and green) 1 pmw transistor outpot and ine digital transistor output.

Here's what I want it to do. Monitor water level and temp, if water level is fine and temp is under 100c then green led on... All other outputs off

If water temp rises above 100c switch pwm transistor , step 51 for ever 2c above 100c and 110c...... (5 speed cooling fan).

If water temp exceeds 110c, light red led, count 10 second then turn on digital transistor output (cuts the system)

All the while I need a clock to count running hours (service light) once it has run for 100 hours make green led flash) there must be a way to reset this "service light".........

I would like to add an optional lcd display at a later stage, but that is not necessary at this stage......

Anybody interested in getting involved please let me know,


Raymond Sinclair

I would like to add an lcd display at a later stage and add one or two more
10  Using Arduino / Project Guidance / Re: pin 5 random flash on: December 02, 2012, 04:33:08 am
im just tarting out so iv been doing some examples as per (

got eight led's connected to ground (each with a 1k resistor) then to pins 2,3,4,5,6,7,8,9

code runs the leds in different sequences, but led4 (pin 5, messes around) in not sure if it has something to do with my version of the uno (led to believe its the newest version)
11  Using Arduino / Project Guidance / pin 5 random flash on: December 02, 2012, 02:06:53 am
hi guys, new here... i was hoping someone could help me understand why when i try use several outputs simultaneously on my uno it does funny things on pin 5..... eg: if i configure pins 2,3,4,5,6,7,8,9 as digital outputs and then try to make them light up in array the output on pin 5 is not stable (high and low on what seems to be its own frequency) if i change the code to output on 5 only, but leave everything else plugged in on the board the problem persists, then if i disconnect everything and only connect 1 led direct to pin 5 and ground it works fine.

im very very new tp arduino, pg1 kind of stuff

any help would be appreciated
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