[PSUBS-MAILIST] Vesc motor temperature display

[Alan via Personal_Submersibles]

Jon,
thanks, it is using a 10K NTC thermistor but the power to it runs through a
small pcb in the motor that is also used by the hall sensors. I have sealed
the wires out of the motor, so it's not a reasonable option to separate the
thermistor from the pcb. And again I am needing the reading from this thermistor
to go into the esc for over-temperature control.
The Esc attaches to a computer via a usb connection. I am not sure what
protocol is used to transfer this data. At some stage I am wanting to be able 
to display all this data ( motor & esc temperature, Voltage, Amp draw, rpm, run
time duty cycle) on my HMI. But at the moment just looking for the motor
temperature. 
I am on holiday at the moment & will have another determined look at this when
I get back!
Cheers Alan



> On 1/01/2019, at 2:15 AM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan,
> 
> I'm not familiar with the motor.  What is the protocol the temperature output is using, analog, I2C, SPI, serial?  Arduino can handle all of those, just output to either 7-segment LED or a 16 character LCD.
> 
> LCD Shield Kit w/ 16x2 Character Display - Only 2 pins used!
> 
> Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Green
> 
> Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Green
> What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or ...
> 
> 
> LCD Shield Kit w/ 16x2 Character Display - Only 2 pins used!
> This new Adafruit shield makes it easy to use a 16x2 Character LCD. We really like the Blue & White 16x2 LCD...
> 
> 
> 
> From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
> Sent: Monday, December 31, 2018 3:36 AM
> Subject: Re: [PSUBS-MAILIST] Vesc motor temperature display
> 
> Hi Steve,
> thanks but no it was Aussie Steve, I should have been more specific.
> He is familiar with my motor controller.
> The temperature sensor is powered from the Vesc motor controller
> & the signal returns to the Vesc. Also the Vesc has the over-temperature 
> cut back that you mentioned. I don't want to disable this by running
> the temperature sensor from a different power source.
> I can get the temperature reading on my laptop, but don't want to take
> that out in an inflatable.
> Cheers Alan
> 
> 
> > On 31/12/2018, at 10:58 AM, Steve McQueen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> > 
> > Alan, not sure if I am the Steve you were pinging, but to me the first question would be where/how are you wanting to measure/monitor the temperature? 
> > Some of the more sophisticated thrusters have overtemp sensors built in. Understanding the sensor type (thermocouple, RTD etc.) and how it is installed will lead to ways of monitoring/reading it
> > 
> > Thanks,
> > Steve
> > 
> > ---- Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote: 
> >> Steve,
> >> if you are listening in.
> >> I have pool tested my 6374 thruster & have it nearly ready for testing
> >> on the back of an inflatable. 
> >> There are 2 android apps that I downloaded, "esc monitor" & "Vesc monitor, 
> >> neither display motor temperature which is the main condition I want to see.
> >> The "Vesc tool" app for androids requires an expensive dongle that will take
> >> ages to get here.
> >> Any ideas on the easiest way to monitor my motor temperature?
> >> I have hall sensors, so power from the Vesc is supplying the temperature
> >> & hall sensors. Have a couple of arduinos & a raspberry pi sitting around
> >> if they can be used.
> >> Dead keen to have a holiday out on the water towing a lure around but
> >> stuck at home till I sought this out. 
> >> Cheers Alan
> >> 
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