Often times, we use the most complex method to achieve the simplest of tasks. Why use a microprocessor when you can use analog components and simple circuitry? I decided to create a device that would achieve an objective (to move around) with nothing but analog components.
What it does
The solar BEAM bot uses sunlight to generate power with its 4.5V solar cell. This in turn charges its three capacitors, which are discharged simultaneously by a flashing LED. This allows the motor to move a little in small intervals of time.
How I built it
I've used a conventional soldering iron as well as the standard solder to connect the joints. Resin was used seperately to remove the copper oxide from the rings around the motor.
Challenges I ran into
The axle of the motor ended up having way too little friction to create the torque for the bot to move. I applied head shrink on the bottom for a better contact with the surface.
Accomplishments that I'm proud of
The bot worked on the first trial, which was pretty satisfying.
What I learned
This was my first time soldering! It was a little hard to get the hang of, but definitely a useful skill to learn.
What's next for Solar BEAM Bot
This is the most I can make for this bot given the hardware I have. I may build multiple bots with communication abilities in the future.