After a long time off due to work commitments and health issues I am finally back working on my robot.
This week I have added the PiJuice HAT to give me more control over the battery power of the Pi and to separate Pi power from motor power.
I have also added RasP.iO inspiring LED lights to the front which allow me to easily switch between a Knight Rider / KITT style strobe lighting effect, or to bright LED headlights when driving the robot around my garden filming at night.
I have also made major changes to the design, originally it was 6 wheels / motors but in reality this made turning a lot more difficult, so I have now changed it to 4 wheels / motors and moved them closer together to increase turning ability.
I will add more photos and videos over the coming days.
Turns out that MakerBeam is also great for making your own Raspberry Pi cases when you can’t quite find an off-the-shelf case which fits your needs
You can cut some perspex/acrylic sheet to size and slide it between the beams to make the sides – 3mm fits perfectly in the gap in the makerbeam beams
Or you can cut some aluminium sheet to size and attach it using makerbeam bolts, dome nuts or wing nuts for quick access/removal
This model was designed to go outside in my hedgehog box to capture images/videos and so I can view them remotely – the case is larger as it also holds various sensors to detect temperature, humidity and air pressure as well as having an external goose neck mounted night vision camera with IR lights for night time images
Over the coming weeks/months this is what I would like to achieve – unfortunately work has got in the way recently!!
Add a robotic arm/gripper so I can pick up and carry items
Add Knight Rider style lights to the front – not very functional I know but will look cool (and I grew up loving KITT as a child!)
Create Python app (or web interface) to show webcam view, allow control of robot and to show ultrasonic sensor readings
Improve code so when sensors detect an obstacle it can stop or manoeuvre round it
Write some code to make it autonomous, so it can explore house/garden and find its own way around
Add the ability for the robot to speak and to do speech recognition
Make more use of the camera so it can recognize items or even do facial recognition
I would also like to make use of the PiJuice which I have backed through Kickstarter to add an alternative power source with rechargeable battery and a solar panel so that the robot can recharge itself
I have now finished building the chassis using MakerBeam and added the motors, Raspberry Pi 2, PicoBorg Reverse (motor controller), BattBorg (so I can power Pi and Motors using AA batteries), Batteries and Wheels
For the chassis of my new larger robot I chose to use MakerBeam which is a fantastic product construction kit designed for prototyping and building models (like meccano for adults!) – it consists of aluminium beams and various different fixings to allow you to easily build just about anything – it is also very strong and lightweight so ideal for my robot chassis
For UK readers I highly recommend Technobots as a supplier for MakerBeam
For the base of the chassis I chose some perforated metal sheets – again purchased from Technobots – as the holes would be perfect for mounting the Pi and all other electronics
After several days of playing around with my DiddyBorg and trying out all the great software and the web interface that PiBorg supply I decided that I wanted something bigger – having been inspired by the monster robot (tank) that PiBorg created called the DoodleBorg