reef-pi :: An opensource reef tank controller based on Raspberry Pi.

Dr. Reefs Quarantined Fish
Jump to Last
BlakeL said:
I want to place an order for connectors to use on the temperature and water level probes. What is the best alternative than using stereo plugs? The XLR's @Ranjib posted look good but are they a bit too bulky? The other option is the cheap GX16 aviation style connectors on eBay which come in 2, 3, 4, 5 and 6 pin. I was hoping Adafruit would have some additional options because I was going to buy some jumper cables from them to replace the crappy ones I have from eBay.
Click to expand...

@BlakeL - Although this may not be the specific answer your seeking, here's a link to about any type of connector you could hope to order. A nice thing about it is that it has radio buttons to select the ones you want to see. I hope this helps!

https://www.mouser.com/Mobile/Connectors/_/N-5g3y/
 
Nutramar Foods
Nutramar Foods
As an Amazon Associate we earn from qualifying purchases.
This is essentially a much cleaner version of what I have done. I even use the tb6612 for my dosers. Looks like you could build this and stack the @Ranjib’s power circuit on top. I have to admit I’m having so much fun building this that when mine is done I might just build another one lol
 
WWC
b4tn said:
This is essentially a much cleaner version of what I have done. I even use the tb6612 for my dosers. Looks like you could build this and stack the @Ranjib’s power circuit on top. I have to admit I’m having so much fun building this that when mine is done I might just build another one lol
Click to expand...
I'm having fun just collecting parts, not built the controller yet, only a pi0 for lights on and off, I got my pi3 b+ ready, i then ordered the new pi3 a+ as the size is just so much more suitable
 
crusso1993 said:
They're available on Amazon...

Adafruit DC & Stepper Motor HAT for Raspberry Pi - Mini Kit

https://www.amazon.com/dp/B00TIY5JM8/ref=cm_sw_r_cp_apa_CwhaCbA8K3ECQ
Click to expand...
Ordered.

My pi and all of its associated parts like resistors, transistors, power supply, etc. were supposed to be delivered today. I got an email from Amazon around 3pm EST saying that the package was damaged and I would be refunded the full amount! What the heck! So back to square one, all ordered again.
 
As an Amazon Associate we earn from qualifying purchases.
rushbattle said:
Ordered.

My pi and all of its associated parts like resistors, transistors, power supply, etc. were supposed to be delivered today. I got an email from Amazon around 3pm EST saying that the package was damaged and I would be refunded the full amount! What the heck! So back to square one, all ordered again.
Click to expand...
Fortunately, Amazon has their own shipping service, so you aren't having to wait for Fedex or UPS to deliberate before they get another order shipped! Hope your Amazon delivery's arrive as quickly as ours, half the stuff I order is same day or tomorrow.
 
Nutramar Foods
I have seen it posted up here before, but I have forgotten now. What is the absolute best quality peristaltic pump head and motor combo that runs at 12V or less? DC or stepper are fine, I guess stepper would be slightly preferred. Anybody know what Vertex used in their dosing unit? I thought those heads looked pretty solid. I'll give them a test with the motor HAT after I do my 0-10V analog signal (pump control) testing.
 
rushbattle said:
I have seen it posted up here before, but I have forgotten now. What is the absolute best quality peristaltic pump head and motor combo that runs at 12V or less? DC or stepper are fine, I guess stepper would be slightly preferred. Anybody know what Vertex used in their dosing unit? I thought those heads looked pretty solid. I'll give them a test with the motor HAT after I do my 0-10V analog signal (pump control) testing.
Click to expand...

Absolute best is hard to quantify. I'm looking at these two models in my lineup:

Stepper and loadable head. The included tubing should probably be replaced, but the plastic isn't bad and it can push a lot of torque.
https://www.aliexpress.com/item/DC-...aphragm-pump-vacuum-Aquarium/32705281006.html

This one is a better adjusted head for different tubings and the stepper driver is included:
https://www.aliexpress.com/item/Kam...epper-Motor-13-5-320ml-min-4/32849352450.html
 
ScottBrew said:
Fortunately, Amazon has their own shipping service, so you aren't having to wait for Fedex or UPS to deliberate before they get another order shipped! Hope your Amazon delivery's arrive as quickly as ours, half the stuff I order is same day or tomorrow.
Click to expand...
Two days minimum up into the mountains! Amazon says Sunday-Tues package deliveries.
 
Avast
New toy today! Whole lot better than my 15 year old 40 watt Radio Shack iron.
20181129_232331.jpg
Hope to get my pump controller working tomorrow, i2c or pwm, decisions, decisions...
20181129_232143.jpg
https://www.droking.com/dc-5v-36v-p...drive-module-electronically-controlled-switch
https://www.amazon.com/gp/product/B00SK8MBXI/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1
 
As an Amazon Associate we earn from qualifying purchases.
ScottBrew said:
Fortunately, Amazon has their own shipping service, so you aren't having to wait for Fedex or UPS to deliberate before they get another order shipped! Hope your Amazon delivery's arrive as quickly as ours, half the stuff I order is same day or tomorrow.
Click to expand...
Tell that to the three "Same Day" packages Amazon Logistics has lost in the past two weeks for me, where the other couriers have been flawless :)
 
theatrus said:
Absolute best is hard to quantify. I'm looking at these two models in my lineup:

Stepper and loadable head. The included tubing should probably be replaced, but the plastic isn't bad and it can push a lot of torque.
https://www.aliexpress.com/item/DC-...aphragm-pump-vacuum-Aquarium/32705281006.html

This one is a better adjusted head for different tubings and the stepper driver is included:
https://www.aliexpress.com/item/Kam...epper-Motor-13-5-320ml-min-4/32849352450.html
Click to expand...
Right, absolute best is not absolute :)
"To the best of your knowledge, what is the best stepper powered persitaltic pump for dosing ~50-400ml per day very accurately and precisely and has very high reliability with low maintenance required relatively speaking" is what I should have said. I have a bad habit of just assuming that others know what I am thinking. I am sorry I wasn't clear, I appreciate everyone's time and effort and I hate to be disrespectful by not being clear!

Thanks for your help, greatly appreciated!
 
Top Shelf Aquatics
theatrus said:
Tell that to the three "Same Day" packages Amazon Logistics has lost in the past two weeks for me, where the other couriers have been flawless :)
Click to expand...
Right! I wish for Fedex every time I order. My mail carrier is quite good as well, but overall USPS performance depends on where the package gets handed over. UPS isn't bad here either. But all the couriers have their bad days...
 
rushbattle said:
Right, absolute best is not absolute :)
"To the best of your knowledge, what is the best stepper powered persitaltic pump for dosing ~50-400ml per day very accurately and precisely and has very high reliability with low maintenance required relatively speaking" is what I should have said. I have a bad habit of just assuming that others know what I am thinking. I am sorry I wasn't clear, I appreciate everyone's time and effort and I hate to be disrespectful by not being clear!

Thanks for your help, greatly appreciated!
Click to expand...

Compared to the DC motor pumps, I think either of these steppers is much better. Why?

  • The DC motor pumps have a friction fit set of rollers in the center of the motor shaft. This will slip, be inconsistent, etc
  • There is no guarantee the motor will make a set number of turns - different loading (head height, debris from kalk, etc) could easily cause different rotation speeds.
The stepper pumps both have the rollers attached to the D shaped stepper shaft and can't slip. Its still possible to miss a step if you try to run the stepper too fast or the tubing is truly clogged, but the average performance should be a lot better.
 
Chewy.com
rushbattle said:
I have seen it posted up here before, but I have forgotten now. What is the absolute best quality peristaltic pump head and motor combo that runs at 12V or less? DC or stepper are fine, I guess stepper would be slightly preferred. Anybody know what Vertex used in their dosing unit? I thought those heads looked pretty solid. I'll give them a test with the motor HAT after I do my 0-10V analog signal (pump control) testing.
Click to expand...
Take a look at atlas scientific for reference, they are very accurate. Masterflex is also very reputed in the local reef community .
 
As an Amazon Associate we earn from qualifying purchases.

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%

  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%

  • No.

    Votes: 26 37.1%

  • Other (please explain).

    Votes: 3 4.3%
See comments…

New Posts

Tampa Bay Saltwater Live Rock and Live Sand
Top Shelf Aquatics
Nutramar Foods
TCK Corals
Tidal Gardens
Chewy.com
Dinkins Aquatic Gardens
Deltec
World Wide Corals
New Posts
Back
Top