Nice
Yeah I was looking at the 858d clones, some of them say to check the polarity of the power cable but that was the model I was looking at, so I will add it to my list. I am using a @Michael Lane goby hat and it controls the doser via PWM but you may be on to something. The doser module is a separate module that plugs into the doser port - https://www.tindie.com/products/ranthalion/dosing-pump-adapter/ that little board has a uln2803a chip on it and maybe something on that board is what went belly up versus the pca9685, that actually makes more sense. It made me wary of using the dosing via that since I just happen to be around when it happened and was able to remove it from dosing, otherwise it would not have been good outcome. I moved to BRS AC dosing pumps controlled via relay outlet since I fill like i have more control over them vs the dosing setup but now I am leary of the relays in the strips going bad, need to find a more robust relay vs the ones in the DJ housing which is what I am using.I hear you on the eyes, mine are shot close up, most of the time I'm soldering blind.
I have one of these cheap hot air guns, I'm amazed at how long it has lasted and it's been used a lot with times running hours. I highly recommend, no need to spend big bucks. With that said it's still better to remove parts using that technique I showed, that's the best tip I ever learned. Never remove solder when removing anything, instead add solder.
Hot Air Gun 858D BGA Rework Solder Station Blower Hair Dryer Haurdryer Welding | eBay
Hot Air Gun 858D BGA Rework Solder Station Blower Hair Dryer Hairdryer Soldering Heat Gun 220V 110V For SMD SMT Welding Repair. Blower fan :Brushless Fan. Amount of Wind:120L/m(MAX). Temperature Range:100°-450°.www.ebay.com
The pca9685 is quite rugged, I have very little trouble with them, I don't think I've ever seen a pin stuck on. It's sounding like you have a bad mosfet instead. I'm guessing you have similar being driven by the pca9685? Those can get stuck closed, when that happens the gate with the PWM signal will have voltage which can looks like it's coming from pca9685 but it's not. If you remove the mosfet the pin will react as expected. I would look at that first.
That adapter is nicely thought out, I guess at this point it wouldn't hurt to get some. I currently have a customer who's trying to adapt the light, he determined the signal inside the light is 0-3.3v, are you driving the adapter with the same or 0-5v? I'm hoping 0-5v PWM from your pca9685.
I agree, I'd like to learn and it appears @Michael Lane has all of the files on github. I assume you agree it appeared he had it labeled as opensource hardware and I assume he would have no issues in ordering up some boards, right? I have gotten to a certain point on pcbway.com where they are going to give me a quote but will probably not see that until tomorrow etc, I will update and see if there is anything that they are still needing information wise but the gerber files loaded up and the bom calls out all the parts, typical great work by Michael as usual.
Oops forgot to answer the last question, yes the adapter is really well thought out, here is the main thread where he -details everything and several of us detail how things are wired up - https://www.reef2reef.com/threads/controlling-viparspectra-lights.698216/I hear you on the eyes, mine are shot close up, most of the time I'm soldering blind.
I have one of these cheap hot air guns, I'm amazed at how long it has lasted and it's been used a lot with times running hours. I highly recommend, no need to spend big bucks. With that said it's still better to remove parts using that technique I showed, that's the best tip I ever learned. Never remove solder when removing anything, instead add solder.
Hot Air Gun 858D BGA Rework Solder Station Blower Hair Dryer Haurdryer Welding | eBay
Hot Air Gun 858D BGA Rework Solder Station Blower Hair Dryer Hairdryer Soldering Heat Gun 220V 110V For SMD SMT Welding Repair. Blower fan :Brushless Fan. Amount of Wind:120L/m(MAX). Temperature Range:100°-450°.www.ebay.com
The pca9685 is quite rugged, I have very little trouble with them, I don't think I've ever seen a pin stuck on. It's sounding like you have a bad mosfet instead. I'm guessing you have similar being driven by the pca9685? Those can get stuck closed, when that happens the gate with the PWM signal will have voltage which can looks like it's coming from pca9685 but it's not. If you remove the mosfet the pin will react as expected. I would look at that first.
That adapter is nicely thought out, I guess at this point it wouldn't hurt to get some. I currently have a customer who's trying to adapt the light, he determined the signal inside the light is 0-3.3v, are you driving the adapter with the same or 0-5v? I'm hoping 0-5v PWM from your pca9685.
Yup, @Michael Lane was making them but no longer, all of the files are up on git and I have been looking at having some boards made but I am a total noob. I know I would like some and I know there are some others as well trying to figure out what is the easiest way to accomplish it. I was looking through the part list and for some items they do not list the detailed part number like for this TL432DBZ SMD-SOT23 but there are quite a few part numbers to choose from. The boards look pretty straight forward but at least for me I would need some better descriptions for some of the parts listed, @Ranjib thought it would be you or @robsworld78 would be able to clarify and or figure out what was needed to order some up.
Yup, @Michael Lane was making them but no longer, all of the files are up on git and I have been looking at having some boards made but I am a total noob. I know I would like some and I know there are some others as well trying to figure out what is the easiest way to accomplish it. I was looking through the part list and for some items they do not list the detailed part number like for this TL432DBZ SMD-SOT23 but there are quite a few part numbers to choose from. The boards look pretty straight forward but at least for me I would need some better descriptions for some of the parts listed, @Ranjib thought it would be you or @robsworld78 would be able to clarify and or figure out what was needed to order some up.
I think all those cheap hot air guns are basically the same, mine is actually a Sigma R700 but I wouldn't be too worried about the different brands.Yeah I was looking at the 858d clones, some of them say to check the polarity of the power cable but that was the model I was looking at, so I will add it to my list. I am using a @Michael Lane goby hat and it controls the doser via PWM but you may be on to something. The doser module is a separate module that plugs into the doser port - https://www.tindie.com/products/ranthalion/dosing-pump-adapter/ that little board has a uln2803a chip on it and maybe something on that board is what went belly up versus the pca9685, that actually makes more sense. It made me wary of using the dosing via that since I just happen to be around when it happened and was able to remove it from dosing, otherwise it would not have been good outcome. I moved to BRS AC dosing pumps controlled via relay outlet since I fill like i have more control over them vs the dosing setup but now I am leary of the relays in the strips going bad, need to find a more robust relay vs the ones in the DJ housing which is what I am using.
I have a quote out at pcbway.com to see what the board will cost, the PCB are cheap but I have not priced the components but I suspect they should be pretty reasonable also but I have not gone to digikey or anywhere to price up the BOM, he has that listed on the github, it's pretty much ready to go, when I get some more information from them I will let you know what I find out. I have not ordered any PCB's before so lots to learn but if you guys have any insight into where and how to do it I'd like to learn how to do it, etc.
Wow that's a very generous offer, how can someone say no to that.
When would you be going? I would love to join you but unfortunately that's no possible, I can send you a package though, you can sell and go towards booth or do whatever.
Welcome to component land where not much makes sense... 10 parts with basically the same model can really put you in jam.
If you want to do this you'll know better than me. The one question I have is the adapter wanting 0-3.3v or 0-5v PWM signal. Something tells me ML's board is putting out 3.3v but I could be wrong.
I think he stated in the vipar thread that he was feeding 5v but that the vipar was ok with that voltage, I think he stated it used 3.3 but was ok with 5v.
Thanks, I'll look at getting some soon.
# add metrics from the reef-pi/x/metrics end point here that you'd like to display on your
# arduino or whatever else may be reading these files
metrics = {
"tankTemp": "tank_temp_reading",
"sumpTemp": "sump_temp_reading",
"boxTemp": "box_temp_reading",
"boxFan": "equipment_fan_state"
}
# retrieve the metrics from the server and save them to a variable.
from urllib.request import urlopen
response = urlopen('http://10.167.15.10/x/metrics')
html = response.read()
html = html.decode()
serverMetrics = html.split('\n') # split everything into lines.
# function to remove the metric name from the line found in getTemp()
def listToString(s):
# initialize an empty string
string = " "
# return string
return string.join(s)
# while looping through the metrics dictionary, get the metric value from
def getMetric(t, m):
for line in m:
if not line.startswith(t):
# remove commented lines from metrics to reduce size in memory
pass
else:
text = line.split(' ') # split everything into lines.
text.pop(0)
tempMetric = (listToString(text)) # strip the metric name from the line
return tempMetric
# loop the dictionary to get the values of the temp readings
for key, value in metrics.items():
met = (getMetric(value, serverMetrics)) # get the values from the server metrics
if met is None:
metric = str("BROKEN!") # in the likely event that a sensor fails, rather than bork the script, return an error
else: # all data should be good, so let's write some files...
f = open(value, "w")
f.write(met)
f.close()
Yup, @Michael Lane was making them but no longer, all of the files are up on git and I have been looking at having some boards made but I am a total noob. I know I would like some and I know there are some others as well trying to figure out what is the easiest way to accomplish it. I was looking through the part list and for some items they do not list the detailed part number like for this TL432DBZ SMD-SOT23 but there are quite a few part numbers to choose from. The boards look pretty straight forward but at least for me I would need some better descriptions for some of the parts listed, @Ranjib thought it would be you or @robsworld78 would be able to clarify and or figure out what was needed to order some up.
whoa.. thank you for doing this.Just as a test, since its a very simple adapter, I dropped a full turnkey order to JLCPCB for 15 units. This means everything except the headers will come pre-assembled on the boards. Due to some aggressive couponing ("please try our service!"), the whole thing was sub $50 including DHL. Its amazing how cheap some simple prototypes have gotten..
The part rotations needed some tweaking, and odds are I'm going to get the board back with all the diodes on backwards. Will report back when I get something in hand
Just as a test, since its a very simple adapter, I dropped a full turnkey order to JLCPCB for 15 units. This means everything except the headers will come pre-assembled on the boards. Due to some aggressive couponing ("please try our service!"), the whole thing was sub $50 including DHL. Its amazing how cheap some simple prototypes have gotten..
The part rotations needed some tweaking, and odds are I'm going to get the board back with all the diodes on backwards. Will report back when I get something in hand
