454 Monster Chevy

Looking around in the thrift store to find number indicators for another robot project I found this cool looking RC car. The seller said it is broken and he has no use for it so I got it for almost nothing.

But the car is not broken. Just the remote control is missing. We robot builders know that broken does not mean broken. It is simply not functioning as the laymen expects. But it is far from broken. 

So here is my RC car hack. The car is owned now by my elder son... and mostly targeted to the younger one. Brothers...

 

The Available Motors

One motor is used as thrust, one to steer. Both are normal DC gear motors that can be controlled with an H-bridge.

The New Behaviors

Bumber, Avoider

 

Further Readings

NEW V3 Arduino Motor controller Shield L298N 2 motors
   "The Arduino Motor controller Shield is based on L298N chipset, which is a high voltage (46V max), high current (2A per phrase) dual full-bridge driver, that can control two motors simultaneously."

Selecting the proper battery for your robot
   "Motors are much more suited to AA, AAA, D or C or even battery packs that are manufactured to a specific voltage and configuration"

A Bit About Batteries
   "Ampere-hour (Ah): This measures the total amount of energy available from a battery before its charge is used up. In small batteries this is generally given in thousandths of an amp. (i.e. milliampere-hours or mAh)"

Rumble Bee
   "Its a $20 USD RC car from New Bright (cheap generic brand), which was suprisingly moduler constuction, i didng have to break any plastic or destroy the RF reciever which i may use in another project."

RC Car Sweeper
   "Turn an RC car into a floor sweeper!"

New Bright 1:15 Scale Yellow Monster Muscle Chevy Malibu RC Car

 

 

Appendix A: Motor Shield Settings

Motor voltage is 12V-16V

This case can only be extended through the motor drive board and the VEX GND terminals to the two power supply to the motor, motor-driven expansion of the board at this time 5V logic voltage converter circuit can work properly. In this case the motor-driven expansion board is set to:

  • VLO:ON,Board need to motor drive circuit is extended
  • VLC:OFF,Not with Arduino's 5V pin connection, security isolation
  • VM:VEX, Extended through the motor drive board VEX / GND terminal for the motor to provide drive voltage


These settings because VLC has not Arduino's 5V pin expansion board with the motor connected 5V logic voltage, so we need any additional power supply for the Arduino (via USB cable or external power supply), mainly for security isolation Consideration, especially in the VEX relatively high voltage on the case.

  • Control method: autonomous
  • CPU: Arduino Uno R3
  • Operating system: Arduino
  • Programming language: C, CIP
  • Sensors / input devices: SHARP IR sensor, bumper switches
  • Target environment: indoor, outdoor

This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/454-monster-chevy