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1  Using Arduino / Programming Questions / Re: Subtracting New TIme interval on: March 12, 2014, 02:51:33 am
Why
Code:
int Time
? Use
Code:
long
and check.
2  Using Arduino / LEDs and Multiplexing / Re: A Low Cost Approach to Graphical Waterfall on: March 03, 2014, 11:50:54 pm
Thats look great. Can you please tell us the distance between the outlet of solenoid valves. Can you post the picture of solenoid valves.
3  Using Arduino / Programming Questions / Re: I need Help to solve this error please on: March 02, 2014, 01:14:18 pm
i think i missed or didn't see  "void loop()" in ur sketch????
4  Using Arduino / Programming Questions / Re: How to ensure serial data soesn't get lost ? on: March 01, 2014, 03:52:28 am
In my case i send data from computer to Arduino. I use special handshake protocol that tells arduino that a specific sized packet is arrived. Arduino send a confirmation byte back to PC which in turn send other byte to Arduino. In this way both happy without any communication loss.
If you have serial.println function used in the arduino sketch then comments them out. You will see drastic change in your communication.
5  Using Arduino / Project Guidance / Re: Project to make my dog stop peeing on my bathroom on: February 27, 2014, 09:56:07 am
Use diapers/pampers for your dog:)... You can train the dog.
6  Community / Gigs and Collaborations / Re: Need help developing code for scanning system on: February 27, 2014, 09:35:06 am
Okay tell us what you want to do?
7  Using Arduino / LEDs and Multiplexing / Re: A Low Cost Approach to Graphical Waterfall on: February 27, 2014, 09:12:12 am
wow..i liked the videos but the videos are in fast forward mode. You are genius:) .. Your work is great. I created my waterfall all-alone. I believe if you have commitment and you know how to combine Electronics+programming+mechanical you can do anything you imagine.
Thanks for sharing the videos.
8  Using Arduino / Project Guidance / Re: Project to make my dog stop peeing on my bathroom on: February 27, 2014, 04:35:02 am
Attach a bare electrical wire 110V or 220VAC to the bathroom door and let the dog pee for once. smiley-mr-green
9  Using Arduino / Programming Questions / Re: How to ensure serial data soesn't get lost ? on: February 27, 2014, 04:32:09 am
Jus a thought but where is the data coming from, can you use flow control?

I second Matt on this.
10  Using Arduino / LEDs and Multiplexing / Re: A Low Cost Approach to Graphical Waterfall on: February 27, 2014, 04:28:36 am
Hi,
Thats very good. What solenoid valves you have used and what is the estimated price of your 256 solenoid valve waterfall. Is it running continuously. Can you fall the time?... Can you host the video on Dropbox etc?
11  Using Arduino / LEDs and Multiplexing / Re: Progress on my RGB cube on: February 27, 2014, 01:23:48 am
Thats a hell of work.... smiley-mr-green
Thanks for sharing smiley-grin
12  Using Arduino / LEDs and Multiplexing / Re: A Low Cost Approach to Graphical Waterfall on: February 27, 2014, 01:18:07 am
Youtube is banned in my country, i shall check how you manage the lighting. smiley... Nice to see the similar thing you have done with totally different approach. May be i have done  the same on most economical way smiley-wink
13  Using Arduino / LEDs and Multiplexing / Re: A Low Cost Approach to Graphical Waterfall on: February 26, 2014, 06:20:03 am
Excellent work. I wonder, how two different approaches were meet to make such a graphical waterfall.  I don't know why you have used sliders (scroll bars) for delay.
Thanks for sharing:)
14  Using Arduino / General Electronics / Re: TIP120 on: February 23, 2014, 12:15:54 am
use logic level MOSFETs like IRL540. Use freewheel diode across the solenoid, even, its builtin inside IRL540. and why using TIP120 you can go with same price but high voltage handling using TIP122. Both can work with maximum 500mAmp. If you want to controll more solenoid u can use ULN2803 etc a darlington array IC.
15  Using Arduino / Programming Questions / Re: help how to calibrate lm35 digitally via software to read accurately on: February 11, 2014, 03:12:42 am
Code:
delay(1000); // wait for 15 seconds

Interesting comment.
I think we have to emphases on sketch not the associated comments... Programming is universal language not the comments... delay(1000) is so simple to understand all by us ...
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