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.
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.
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?
Youtube is banned in my country, i shall check how you manage the lighting. ... Nice to see the similar thing you have done with totally different approach. May be i have done the same on most economical way
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.
Finally a success...We have tested 64 solenoid valves waterfall all day long in our FunFair community show for charity fund raising. Lightning and background still needs improvement however technically we have a very good response from the computer-electronics-hardware communication. The handshake protocol worked flawlessly. Here is the video. The header is at atmospheric pressure and outlet of solenoid valve is 6mm.