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Well, after patiently waiting since mid-2017 for my Kickstarter pledge to be filled (by Acrobotics Industries who never responded to my and many other pledgers) the campaign creator, Camilo Parra, has sent me one of two kits that I paid for.
This will be more of a review...
The contents are packaged:
The contents are laid out:
First, there are no directions in the kit. I needed to search online to find the GitHub url for code and examples and assembly instructions.
I carefully followed assembly instructions.... my advice to any followers--- assemble electronics outside of included body parts first, to ensure all components are functional. It is easier to troubleshoot outside of assembled OTTO. (the parts are a very tight fit and do not like to be removed from body/enclosure)
After attach upper leg servos, flip over to expose servo threaded hubs. I like to pre-center the servos manually by placing a horn on each and carefully rotating through the range of motion and then orientating the horn to mid travel and then I remove the horn and reposition.
The servo horns will need to be trimmed to fit in the upper leg enclosure.
Attach the remaining two servos to the feet assemblies. Be sure to center the servo hubs before attaching the servo horns
Next we want to carefully slide the foot servo assembly into the upper leg enclosure, while also guiding the servo wires through the enclosure opennings... be sure to make these screws tight/flush to horn and hub
These 3D printed assemblies are fragile and hold the servos tight in place. Ensure the servo cables are routed correctly through the servo hubs and the servos are seated in the enclosures. Using long screws, from the servo bags, secure through opening.
Now for the hard work.... inserting the Servo IO shield and the NANO into the OTTO head... the head enclosure is naturally for the brain "NANO".
Head assembly, 1st insert the HC-SR04 module as the eyes.
Insert the "BRAIN" into the servo IO shield
This assembly will need to be manipulated beneath the HC-SR04 module and onto the standoff/mounts in HEAD assembly. Be sure to align DC power jack and USB connector
Be sure to install a strip of electrical tape to Servo IO shield edge beneath HC-SR04 module
Now we need to connect the electrical cables from servos... pay attention to color code... brown wire on servo is ground....and servo numbering
Connect servo wiring
Attach HC-SR04 and power switch
And now for coding... open the Arduino IDE... I am using the "Otto_smooth_criminal_US.ino" code.
Be sure to copy/clone the GITHUB files into your Arduino library....(not covered here). Connect the USB cable (included with my kit) from OTTO to your PC/Laptop and then open the Arduino IDE. Pay attention to the COM port assigned to the OTTO/NANO board.... you may need to install the driver for the NANO...
I had issues with compiling the "Code" due to libraries, duplicates, and references to LEDMATRIX... items/calss that are not included in this build,,, but mainly... I needed to select ARDUINO NANO, (ATmega328P (OldBootloader)... on my Laptop to prevent......
But after searching for the crash online:
I started this review project with a slight animosity... because I was wronged as was many other individuals who pledge support for the Kickstarter project... and did not know that the creator was "robbed" of funds by Acrobotics who was paid upfront to send kits to pledgers....