Another reef-pi build.

ScottBrew · Dec 9, 2018

pdisner said:
I checked your suggestions and you were right. I never added that to my config. Now when I try to add it, it says that the file is unwritable.any thoughts?

sudo nano /boot/config.txt

edit: when done editing, hit the ctrl and x keys at the same time, it will ask you if you want to save the modified buffer, type y then enter, hit enter again. Then you can close the shell window.

pdisner · Dec 9, 2018

ScottBrew said:
sudo nano /boot/config.txt

edit: when done editing, hit the ctrl and x keys at the same time, it will ask you if you want to save the modified buffer, type y then enter, hit enter again. Then you can close the shell window.

I am still stuck. I’ve added the entry into config.sys, no problem. But even tho the wiring is different I’m getting the same results. Anything else I can try? Bulb works fine, it will work on the on/off test.

b4tn · Dec 9, 2018

You have to do it with the Sudo command. Try this.

Code:

sudo leafpad /boot/config.txt

ScottBrew · Dec 9, 2018

pdisner said:
I am still stuck. I’ve added the entry into config.sys, no problem. But even tho the wiring is different I’m getting the same results. Anything else I can try? Bulb works fine, it will work on the on/off test.

Reload reef-pi and add proper connector?

b4tn · Dec 9, 2018

Stupid question but Did you reboot?

ScottBrew · Dec 9, 2018

b4tn said:
You have to do it with the Sudo command. Try this.

Code:

sudo leafpad /boot/config.txt

Forgot about leafpad... both will get you the same place.

b4tn · Dec 9, 2018

pdisner said:
I checked your suggestions and you were right. I never added that to my config. Now when I try to add it, it says that the file is unwritable.any thoughts?

ScottBrew said:
Forgot about leafpad... both will get you the same place.

Yeah I didn’t see there was a whole new page and you had already responded lol

Ranjib · Dec 9, 2018

b4tn said:
Here is an updated block diagram of what I am going to say will be close to my final build. I have removed PH for now since since its low priority for me and I am waiting to see how the new PH circuit that is being developed pans out. I have added a second float switch in series with the original one so I have high and low detection. I have not decided yet but since I am no longer planning to use the DJ SR8 power strip and using opto isolated relays I will probably bypass the ULN2803 all together. Lastly I added the PCA9658 and relays that will control my lighting. I did test fit everything and I will have to re do all my wiring but this will all fit in one box with plugs to extend to the doser, lights, and power module. The only think I still need to design is I have a small 2 volt micro fan. I will be putting a DS18B20 thats in the transistor form factor and a transistor driver to control the fan on and off.
https://www.amazon.com/Diymore-DS18...44214379&sr=8-12-spons&keywords=DS18b20&psc=1

Lm2596 is only rated for 3amp. Most of the jumper pins are 1-2 amp , including the traces in perf or perma proto board, I recommend 22 wag jumper which is rated for 7 amp but I recommend running it at 3 amp.

pdisner · Dec 9, 2018

b4tn said:
You have to do it with the Sudo command. Try this.

Code:

sudo leafpad /boot/config.txt

Leaf pad?

pdisner · Dec 9, 2018

ScottBrew said:
Forgot about leafpad... both will get you the same place.

So if I corrected in one using sudo, if that ok, then why the problem still?

ScottBrew · Dec 9, 2018

pdisner said:
Leaf pad?

leafpad and nano are both text editors, allowing you to modify the file. sudo is just giving you permissions to modify the files. So sudo (gives permission) nano or leafpad (which file editor) /boot/config.txt (the file you want to modify).

pdisner · Dec 9, 2018

b4tn said:
You have to do it with the Sudo command. Try this.

Code:

sudo leafpad /boot/config.txt

I’ve edited the /boot/config.txt, that’s not the problem now. Even after I added the line using sudo nano /boot/config.txt, I am having. The same issue as before. I can’t seem to adjust the intensity. What now? And what’s this leapfrog thing?

pdisner · Dec 9, 2018

Sorry I just realized I’m posting my issues in the wrong thread. My bad. I apologize everyone. But I’ve been making a little progress this morning!

pdisner · Dec 9, 2018

Anybody have any more suggestions? Ranjib?

crusso1993 · Dec 9, 2018

Did you reboot after making the changes?

pdisner · Dec 9, 2018

b4tn said:
You have to do it with the Sudo command. Try this.

Code:

sudo leafpad /boot/config.txt

No...I’m way past that

ScottBrew · Dec 9, 2018

pdisner said:
Anybody have any more suggestions? Ranjib?

You have the LED hooked to pins 18 and 19 which are both separate PWM signals. I believe you need to move the wire that is connected to pin 19 to a ground, then set up a jack for pin 18.