Check if reef-pi is runningOne more pic.No clue what is that.i type 192.168.1.13 that is my Reef-pi address on my home network,and this come up.
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Check if reef-pi is runningOne more pic.No clue what is that.i type 192.168.1.13 that is my Reef-pi address on my home network,and this come up.
This is not a problem. Reef-pi is probably running already. When you did systemctl start , that will start reef-pi (if it’s not already running ). You can check the status using “systemctl status reef-pi.service” .Hi to all,something went wrong with the new 3 update.remove 5 times,reinstall 5 times and always the same problem,any help or just redirect to the right reading.Thank you
Ok did I do something wrong on the wiring ?Yes. You can check the same in raspberry pi using
Each sensor should have a single 28-xxxxxxxx entryCode:ls /sys/bus/w1/devices/
Looks correct to me. Touch the sensors carefully, if the wirinig is wrong or opposite they'll get hot (enough to burn your finger, so careful :-( ) . Also, reboot pi. To check any kernel specific issues you can useOk did I do something wrong on the wiring ?
Black is ground
Red is 3v
Yellow is data
Resistor is on the same line as 3v and data.
dmesg
Thank you I will give that a try tomorrow.Looks correct to me. Touch the sensors carefully, if the wirinig is wrong or opposite they'll get hot (enough to burn your finger, so careful :-( ) . Also, reboot pi. To check any kernel specific issues you can use
you can also use a multimeter to verify the voltage (3.3v)Code:dmesg
Ok did I do something wrong on the wiring ?
Black is ground
Red is 3v
Yellow is data
Resistor is on the same line as 3v and data.
Ok did I do something wrong on the wiring ?
Black is ground
Red is 3v
Yellow is data
Resistor is on the same line as 3v and data.
I am not sure if I can detect the difference. In both cases they (ground, 3v and data ) are in individual rails , and the data rail is also connected to the 3v with a resistorI am not sure it if matters but this is not exactly how i have mine... I have the Resister between the probe data and power ... Using that board with Connected rows is not forcing thru the resister but just adding it to the circuit.. ( I COULD BE WRONG )
They way mine is wired you would need to move the yellow data wire a row over . have resister go from red wire to that row then a jumper from there to the yellow data to sensors.. You have it so the data is bypassing the resister kinda like parallel not in line ...
What i mean is the probe data wire cant be on the same rail as the gpio data .. as the current can bypass the resister. Hope this does not sound stupid...
Again It may not matter but i think it does....
Current is moving from the 3v to the data right ?I am not sure if I can detect the difference. In both cases they (ground, 3v and data ) are in individual rails , and the data rail is also connected to the 3v with a resistor
Just getting some crap together so that I can use the 2.0 beta 3
I bought a temp probe and have had a look at your diagram in the build guide.
Is that transistor the temp probe or am I missing something?
Just getting some crap together so that I can use the 2.0 beta 3
I bought a temp probe and have had a look at your diagram in the build guide.
Is that transistor the temp probe or am I missing something?
It’s the temp probe, but in TO-92 package (same as common transistor) , not in the submersible package. My fritzing skill is not that good , and that’s the only ds18b20 it had when I created the schematicJust getting some crap together so that I can use the 2.0 beta 3
I bought a temp probe and have had a look at your diagram in the build guide.
Is that transistor the temp probe or am I missing something?
It is mostly relvant (some are not). If you are powering pi via GPIO (I always do), always use pin number 2 (serial number, not GPIO number)And one last question for today.
I notice a lot of the breakout boards use 5v and Ground fro the GPIO on the pi, I know I can power the pi using 5v straight to the GPIO pins but which pin numbers am I best to connect the 5v to run the pi. I'm thinking along the lines of using an adapted PC power supply and making some sort common of 5v and ground rail and 12v and ground rail.
Do you think this would be ok? I figured pin 2 and 6? to power the pi?
Also is this pin out still relevant now that pi 2.0 beta 3 is out?
Always use GPIO 4 (serial number 7, label: temp 1w) to connect the temp sensor data line. This is not a choice, hence not available from UI. If you dont connect them to GPIO4 , they wont be detected and you wont see them in temperature probe drop down menu.Is there an accurate doc on how to hook up a 18B20 temp sensor? I have the sensor, and understand the VCC, GND, and the 4.7k pullup, but what pin on the Pi do I attach the data line to so that the 2.0 beta Reef-Pi software can find it? I'm not finding any options in the menus to specify an IO pin for a temp sensor.
Docs on the Reef-Pi web site are out of date for the beta software release.
I am not sure it if matters but this is not exactly how i have mine... I have the Resister between the probe data and power ... Using that board with Connected rows is not forcing thru the resister but just adding it to the circuit.. ( I COULD BE WRONG )
They way mine is wired you would need to move the yellow data wire a row over . have resister go from red wire to that row then a jumper from there to the yellow data to sensors.. You have it so the data is bypassing the resister kinda like parallel not in line ...
What i mean is the probe data wire cant be on the same rail as the gpio data .. as the current can bypass the resister. Hope this does not sound stupid...
Again It may not matter but i think it does....