Getting started with Photon and NCD 10 amp relay

#1

I will start off like many others. I am really new to this. I am trying to find info on controlling the relay with a schedule, but am not having much luck. The end goal is to be able to set the relay to momentary for several scheduled times/day, but for now I would just settle for getting the photon set up to run one schedule just to see it work. Any suggestions on where to start?

#2

Hi,

If you want to do this with a Particle interface board then as luck would have it I wrote an article about it here:

If you have any questions on this please let me know.
Thank you,
Travis Elliott

1 Like
#3

Thanks @Travis. I did find this yesterday after I posted this. I had a few issues adapting it to the Particle interface 1 relay board, but I think I may have figured it out. However, when I went to Mobicle.io, the site would not load, so I have not been able to test my work. I noticed there is a thread on here now asking if Mobicle.io has been discontinued.

#4

Hi,

Mobicle is back online now.

#5

Hello. I had to step away from this program for a while and am just now getting back to it. I have modified the Time schedule activated Particle Photon relay controller app to work with NCD1Relay instead of the 8-relay shield. I changed the executeCommand to only have on, off, and toggle shown below:

void executeCommand(int commandID, int commandData){
    switch(commandID){
        case 0:
            //Turn On Relay
            controller.turnOnRelay();
            break;
        case 1:
            //Turn Off Relay
            controller.turnOffRelay();
            break;
        case 2:
            //Toggle Relay
            controller.toggleRelay();
            break;    
        
    }

The issue I am having now is that I can only submit one schedule at a time. Using mobicle.io I can enter in the event publisher 2019,0,0,0,24,60,0,0,1 and it will turn on the relay or I can enter 2019,0,0,0,24,60,0,1,1 and it will turn off the relay. It really doesn’t seem to matter if I put in 0, 1, or 255 in the last spot, it still works. What I really want to do is turn the relay on and then 1-5 seconds later, turn it off. But I can’t even get it to turn it off in the next minute much less the next second. I tried 2019,0,0,0,24,1,0,0,1,2019,0,0,0,24,2,0,1,1 to see if I could turn it on in minute 1 and then turn it off in minute 2 but it didn’t work. Is there a way I could edit the executeCommand to turn on the relay and then delay for 1 sec and turn back off?

#6

@swstrib
Can you share your current version of firmware you are flashing into the Photon? If you are editing the code in Particle’s Web IDE there is a share current revision button which will give you a link you can share here.

#7

@Travis I think this is what you are asking for. Let me know if you are needing something different.

https://go.particle.io/shared_apps/5cb38b71e26bbb00051932db

#8

Honestly I wrote this firmware a long time ago and I don’t remember much about how it functions. Have you hooked up to the Photon over USB and monitored the serial output? It looks like I had a lot of serial prints in the firmware so that might point some information out.

#9

No I haven’t. Got any info on how to monitor the serial output through the USB. Definite noob here.

#10

You’ll want to install Particle’s CLI, instructions on that here:
https://docs.particle.io/tutorials/developer-tools/cli/

Once you have that installed open your Terminal/Command Prompt and enter
particle serial monitor
That should open a serial connection to the Particle module and will output the serial prints which are life saving when it comes to code debugging.