Hi! Is it possible to power this pump with 4.8V by particle photon? photon is powered by external DC adapter but I didn't manage to make pump operational
JaneYu 2018-11-28 03:39:15 7 Views17 Replies Hi! Is it possible to power this pump with 4.8V by particle photon? photon is powered by external DC adapter but I didn't manage to make pump operational
I've purchased one of these pumps, but it's not working properly. The rotor spindle is turning, but the three plastic wheels aren't turning to compress the rubber tube - it's like they're not pressing firmly enough on the spindle to cause them to spin (see attached photo). Can you recommend a way to fix it? https://uploads.disquscdn.c...
JaneYu Would you try to make the pump turn faster? This pump works on the principle of rotation by friction of the main shaft against the wheels. So it needs the spindle to turn faster to be effective.
Hello, I have a ESP32 Wroom, so the Librarie "GravityPump.h" is not compatible with my board, can you help my with aasample?
JaneYu Dear DFRobot. I have bought this pump. How do i connect this specific product (gravity digital peristaltic pump)
to Micro:bit V2 ? Upload me an image, please, showing the pin
connections. With clear simple instructions if it is possible. It is
about a school project!! We want to use it, in order to water a simple interior plant. It will help us.
JaneYu you suggestion is great! using a hall effect sensor is great!
but for now maybe a little bit diffical to made it.
Do you think that a stepper motor can work?
JaneYu Hi.
The stepper motor could work in theory, since as long as you are sure not to miss steps because not enough current for having the required torque and the frequency kept in a range the motor can sustain, you know precisely how much the rotor has turned and hence how much liquid has been pumped.
The only problem with steppers is that they cannot run at RPMs as high as standard ones, so the time to transfer the same amount of liquid has chances to be quite higher.
It would worth a try anyway.
Is there anyway to connect this to a usb? I want to control it via a usb host shield
JaneYu What is the max flow rate this pump can handle and for what duration?
JaneYu The maximum flow rate of this persitaltic pump is about 1 mL/s when tested with water under room temperature. There is no limit for the duration.
What is the voltage of your dc adapter? If the voltage of the dc adapter is 5~6V, you can connect the pump power supply to the dc adapter.The signal is sent by particle photon.
JaneYu I think you are right.
But I have to say that this pump is more precise then the nornal pump in DFRobot. For the feed back of the pump, I will say that maybe we can use some flow sencer like SEN0216(https://www.dfrobot.com/pro... or ir sencer to make it.
I think maybe 6ml ±0.1ml.
I mean if when we cal the pump, then give a quatity to the pump, like 6ml then pump about 6.1ml in some case or 5.9ml.
JaneYu yes you are right!
but I don't think it need to add a index sensor for it.
sure if you have a index sensor as feedback make it more precisely.
for normal use I think its precise enough.
https://en.wikipedia.org/wi...
JaneYu 
