predator shoulder cannon explain ?

[Cetanu hunter]

hi can someone please help me understand this video so i can recreate this i need to know exactly what to buy and how to make it function ive never done anything like this so things are not that clear to me.

 

[ksj]

Ah, the mpu6050. I could not get that unit to work properly. I am waiting on a code piece and some information to resolve some of the control issues it has. There are some chronic design issues with the mpu6050 and the active code developer has retired from that project to focus on other things. The library and circuit has some underlaying issues.

The bno055 is better. I have been working on getting a better board with more response but have been having issues getting there.

The adafruit metro m4 boards are a better option with circuit python but I have to do some serious code revisions to port things over.

 

[Cetanu hunter]

Ah, the mpu6050. I could not get that unit to work properly. I am waiting on a code piece and some information to resolve some of the control issues it has. There are some chronic design issues with the mpu6050 and the active code developer has retired from that project to focus on other things. The library and circuit has some underlaying issues.

The bno055 is better. I have been working on getting a better board with more response but have been having issues getting there.

The adafruit metro m4 boards are a better option with circuit python but I have to do some serious code revisions to port things over.

ok, so I'm new to all this and do you mind walking me through the materials and where to get them and once I have everything walk me through the process of putting it all together?

 

[ksj]

adafruit.com sells most all of the electronics for your needs. Other parts vendors I have used:
servocity.com
robotshop.com
Newark.com
mouser.com
alliedelec.com
wish.com/aliexpress.com have had mixed results as the Chinese have quality issues in their manufacturing processes.

The mpu6050 is not something I would recommend due to the lack of support and development on the build but the walk through is here:

Bare bones head tracking shoulder cannon circuitry.

I like to do everything on a cheap budget with things I can find in bulk or find easily. I tried for years to get this right and think I have a pretty stable version of a Shoulder cannon that tracks head movement in both Y and Z axis, and for cheap as I think I can get it with COTS items (Common...

www.predatorium.com

jrowberg/i2cdevlib

I2C device library collection for AVR/Arduino or other C++-based MCUs - jrowberg/i2cdevlib

github.com

Please note this setup is literally bare bones, anything more than the servos and it breaks.

Here is the walkthrough on the BNO055:

Capturing IMU Data with a BNO055 Absolute Orientation Sensor - Projects

The BNO055 is an absolute orientation sensor from Bosch that combines sensor data and a microprocessor to filter and combine the data, giving users their absolute orientation in space.

www.allaboutcircuits.com

Please note that I am working with the manufacturer directly on some issues with an xlr8 board that I have. I think I might have a defective board at this point.

If you are looking for a simple light control setup using two buttons:

Debouncer for arduino using 2 buttons for 2 leds (each button triggers a different led)

// Include the Bounce2 library found here : // https://github.com/thomasfredericks/Bounce2 #include #define BUTTON_PIN_1 2 #define BUTTON_PIN_2 7 #define LED_PIN 3 #define LED_PIN1 4 int ledState = LOW; Bounce debouncer1 = Bounce(); Bounce debouncer2 = Bounce(); void setup() {...

www.predatorium.com

Due to noise present from the DC systems and tight spaces you have to use a debouncer which basically has sanity checks to make sure it does not read a false signal as actual input.

I am still muxing around with the metro m4 board and have hit a bit of a hard stop as I need a newer Linux OS as playing with dependency hell of missing updates from the main distribution can really screw up a working operating system if one is not careful.

This is what I am running right now:

wii nunchuck 4 servo control

Does anyone have any good code to control 4 servos with a wii nunchuck? I can find code all day long to control 2 servos with just an arduino and a wii nunchuck. Honus code base seems to only work with his specific setup ( finally have all the parts in to build it with his board layouts. I...

www.predatorium.com

The only gripe I have is that I am actually overheating the 16mhz processor with the load I am putting on it calculations wise. The latest code revision is a literal snap and go type deal. I am in a holding pattern on things until I can resolve the processing power issues as I need to add about 4 more servos to get a more accurate setup for what I am trying to do. The build is close to movie size aspects to a greater extent but I will have to wrap up other pieces before I can do a metal wrap around on the housings to get a more movie accurate look. But more importantly I need to lower the pack weight down from 60 pounds, granted the movie suit weighed 200 pounds. The movie head alone weighed about 10-20 pounds with all the metal and servos stuffed in it for facial movements.

 

[Cetanu hunter]

adafruit.com sells most all of the electronics for your needs. Other parts vendors I have used:
servocity.com
robotshop.com
Newark.com
mouser.com
alliedelec.com
wish.com/aliexpress.com have had mixed results as the Chinese have quality issues in their manufacturing processes.

The mpu6050 is not something I would recommend due to the lack of support and development on the build but the walk through is here:

Bare bones head tracking shoulder cannon circuitry.

I like to do everything on a cheap budget with things I can find in bulk or find easily. I tried for years to get this right and think I have a pretty stable version of a Shoulder cannon that tracks head movement in both Y and Z axis, and for cheap as I think I can get it with COTS items (Common...

www.predatorium.com

jrowberg/i2cdevlib

I2C device library collection for AVR/Arduino or other C++-based MCUs - jrowberg/i2cdevlib

github.com

Please note this setup is literally bare bones, anything more than the servos and it breaks.

Here is the walkthrough on the BNO055:

Capturing IMU Data with a BNO055 Absolute Orientation Sensor - Projects

The BNO055 is an absolute orientation sensor from Bosch that combines sensor data and a microprocessor to filter and combine the data, giving users their absolute orientation in space.

www.allaboutcircuits.com

Please note that I am working with the manufacturer directly on some issues with an xlr8 board that I have. I think I might have a defective board at this point.

If you are looking for a simple light control setup using two buttons:

Debouncer for arduino using 2 buttons for 2 leds (each button triggers a different led)

// Include the Bounce2 library found here : // https://github.com/thomasfredericks/Bounce2 #include #define BUTTON_PIN_1 2 #define BUTTON_PIN_2 7 #define LED_PIN 3 #define LED_PIN1 4 int ledState = LOW; Bounce debouncer1 = Bounce(); Bounce debouncer2 = Bounce(); void setup() {...

www.predatorium.com

Due to noise present from the DC systems and tight spaces you have to use a debouncer which basically has sanity checks to make sure it does not read a false signal as actual input.

I am still muxing around with the metro m4 board and have hit a bit of a hard stop as I need a newer Linux OS as playing with dependency hell of missing updates from the main distribution can really screw up a working operating system if one is not careful.

This is what I am running right now:

wii nunchuck 4 servo control

Does anyone have any good code to control 4 servos with a wii nunchuck? I can find code all day long to control 2 servos with just an arduino and a wii nunchuck. Honus code base seems to only work with his specific setup ( finally have all the parts in to build it with his board layouts. I...

www.predatorium.com

The only gripe I have is that I am actually overheating the 16mhz processor with the load I am putting on it calculations wise. The latest code revision is a literal snap and go type deal. I am in a holding pattern on things until I can resolve the processing power issues as I need to add about 4 more servos to get a more accurate setup for what I am trying to do. The build is close to movie size aspects to a greater extent but I will have to wrap up other pieces before I can do a metal wrap around on the housings to get a more movie accurate look. But more importantly I need to lower the pack weight down from 60 pounds, granted the movie suit weighed 200 pounds. The movie head alone weighed about 10-20 pounds with all the metal and servos stuffed in it for facial movements.

Ok, I really hate to the 5 year old here but can you tell me every individual part I need to make it move with just my head and links directly to them then once I buy them ill send a message showing everything I have and maybe you walk me through it?

 

[ksj]

I am midstream on build upgrades for performance is my bigger problem. The current setup has a substantial delay in response from inputs. The current setup is cool, but heavy. I am also looking at either switching to a vacuum formed shell or a redone piece. Time and money are my bigger enemies as life gets in the way of my builds. Once I get things to a better finality I will post updates on the builds with all the parts. I am also trying to get the code pieces updated to be more modular so it is easier to comment out specific sections.

I am still struggling to get things working reliably. As it stands I am literally overheating the arduino due to over working the unit. I am also looking at redoing the battery supply setup with Dewalt batteries but really have to redo the left housing for the power distribution.

It is not fair or acceptable to assist on a setup that will be buggy and prone to issues in the field. I will assist once I am more comfortable with a setup that has more rock solid reliability.

 

[Cetanu hunter]

I am midstream on build upgrades for performance is my bigger problem. The current setup has a substantial delay in response from inputs. The current setup is cool, but heavy. I am also looking at either switching to a vacuum formed shell or a redone piece. Time and money are my bigger enemies as life gets in the way of my builds. Once I get things to a better finality I will post updates on the builds with all the parts. I am also trying to get the code pieces updated to be more modular so it is easier to comment out specific sections.

I am still struggling to get things working reliably. As it stands I am literally overheating the arduino due to over working the unit. I am also looking at redoing the battery supply setup with Dewalt batteries but really have to redo the left housing for the power distribution.

It is not fair or acceptable to assist on a setup that will be buggy and prone to issues in the field. I will assist once I am more comfortable with a setup that has more rock solid reliability.

I thank you for that, really. I really want to get on this soon but I want it to be the best it can be so can you please keep me updated even send me PMs if thats a easier to communicate.

 

[Cetanu hunter]

I am midstream on build upgrades for performance is my bigger problem. The current setup has a substantial delay in response from inputs. The current setup is cool, but heavy. I am also looking at either switching to a vacuum formed shell or a redone piece. Time and money are my bigger enemies as life gets in the way of my builds. Once I get things to a better finality I will post updates on the builds with all the parts. I am also trying to get the code pieces updated to be more modular so it is easier to comment out specific sections.

I am still struggling to get things working reliably. As it stands I am literally overheating the arduino due to over working the unit. I am also looking at redoing the battery supply setup with Dewalt batteries but really have to redo the left housing for the power distribution.

It is not fair or acceptable to assist on a setup that will be buggy and prone to issues in the field. I will assist once I am more comfortable with a setup that has more rock solid reliability.

also, im 3d printing a very light cannon to go on it

 

[ksj]

also, im 3d printing a very light cannon to go on it

I tend to build overkill in to my builds so that they are much more abuse tolerant. Most of the servos I use are hitec 645mg servos. The strongest analog servo in a standard size you can get. The one large servo I use is a 785hb servo. I was looking at having to switch to digital servos to downsize gearing so I can do a proper wrap around on the arms. I would recommend building in place holders in your cannon that can hold a servo to make movement mechanics more easily hidden.

 

[ksj]

I thank you for that, really. I really want to get on this soon but I want it to be the best it can be so can you please keep me updated even send me PMs if thats a easier to communicate.

Just follow my main threads. I eagerly post any major updates. At this point the only update I am working on is switching to using dewalt batteries with lanmu adapters that provide 5v/12v output. The 6.0AH batteries last for days in limited testing that I have done.