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Force feedback BLDC actuator

Bretzel_59's picture

 

 

I added force feedback feature to my BLDC actuator.

For this first test, I use a 20kg load cell and HX11 amplifier connected to my arduino pro mini.

https://www.youtube.com/watch?v=0O26WK9ZK6E

LattePanda Alpha and MyRobotLab

Ray.Edgley's picture
Back in February I back a Kickstarter campaign for what was described as a Single Board Computer with the heart of a Mac Book For the level I supported this set me back around the AU$500.  The campaign was successful, however production had a number of delays,  the result was Thursday 9th of Nov, I received a package containing my brand new Latte Panda Alpha.  Interestingly enough the site that was supposed to show tracking info when it was shipped still did not list that it had been shipped.

Rachel found the beer !

moz4r's picture

Playing with yolo filter !

 

 

TOF gets a local DEBUG screen

Gareth's picture

 

Up till now I have been porting scans over the Serial wires and manually presenting the data.....

Now the Rig has its own Real-Time Debug TFT Display. (you might see it below the right wheel)

Above is just a 180° scan of this below :-

Wooden planks set at 90° and two DVD cases thrown in for measure.

When InMoov turns into a dog

hairygael's picture

When Richard Ryerson (RobotGuy6)  takes two upper InMoov body to build a dog.

Cute name: FrankenDog according to Richard.

Richard is running EZ. I was lucky to stumble on this video, because there is no mention of InMoov on YouTube.

Okay now lets see if it opens a door and dance like the Boston Dynamics dogs!

:)

Time of Flight >>> Rounded Corners !!!

Gareth's picture

I placed the Sensor rig into a cardboard box just to get a feeling for the data.

This is two passes of the probe, so you can see the slight variance in data.

Overlaying the raw data for 180°.... this was with GIMP so its just approximate

all looks kinda good except Hmmmm.... rounded corners cannot be explained...

another scan with DVD's :-

Point cloud anyone !!! maybe 3D scanner

Gareth's picture

Its scanning, the stealthy Dual Time of Flight wiring was a soldering pig to execute (or should I say "Exterminate").

Data is flowing.... at momo a bit strange 200 Steps = 360° (until microstep instigated giving theoretical 1/16 steps ermm if my maths is correct 3200 Steps for 360° however at the price of speed)

Double_ing up the "Time of Flight" sensors

Gareth's picture

Two is better than one...... (or 4 or 8 etcetcetc).

Following successful experiments with 1 single Time of Flight distance sensor mounted to Stepper, watching the scan process its seems to lend its self to setting the scan to just 180° and mount two sensors back to back to extract the whole 360°...... (or 90° scan with 4 sensors, hope you see where I am going with this :-)