Intel HW: Moving vehicles

Experiment Goals:

  • Learn how to move vehicles.
  • Try to power those with renewable energy sources.
  • Learn new Intel-related HW: Genuino101, Edison + Sparkfun extension boards

Conclusions: 

  • There was a frustrating experience that took 3 days to debug. 3 of 12 wires I have used were non-conducting. I realized that the source of un-expected behaviore are wires only after comparing to another controller and poser rails. Conclusion: in any case, before constructing – to check wires are conducting using muti-meter.
  • Thought going low voltage, but finally decided to stay 5V at all power-rails (motors/ucontroller) and being able to recharge from 5V solar panels. Reasons: 3.7 V as motors Vin – too weak to move self-weight steadily. When battery weak 3.7V may be enough to power led on Genuino101, but sketch doesn’t start.
  • As these cars are mostly used in indoors, 6V Solar Panels are better to be used instead those 5V ones, that were available for me. Due to lack of direct sun the voltage that was produced by 5V battery was ~1V..2V less than expected which is on the edge for even 3.7V Sparkfun Battery module. Assumption: if 6V panels will be used this will give ~4.5V indoors and more with synthetic light on them which should be enough for more frequent/stable charging cycles and still be not burning 3.7/5V cirquits.
  • Of all reviewed (example1, example2example3, example4) and partially prototyped (transistor-/relay- based) solutions for DC motors control for navigating vehicles, Dual H-bridge Module (spec) appears to be most pin-saving and easy-to wire and use solution. Some of the modules are not even huge in size (like Sparkfun): I believe the larger module size the higher load may be applied (current drown).

Elaboration with IntelMakers Community:

Components:

  • 6V Solar panels (ebay)
  • Genuino101-based large chassis car:

SW:

Architecture:

  • Genuino-base Large Chassis:

car_01

  • Edison-based Small Chassis:

ver01

Pics and Story:

Assembly of chassis and mechanics

 

 

 

Edison, Sparkfun and Solar

 

 

 

 

  

 

Larger car chassis

 

 

Useful links: