4x4 Truck


Senior Member
Stage one complete.

Major mechanical components now in place.

Two powerful drive motors front and rear driven separately. Differential gearboxes used at both ends.
Steering at both ends. Bumpers not yet made, needed to protect vulnerable steering linkage setup. Steering servos mounted.
Servos upgrade: "Power HD 1218TH High-Torque, High-Voltage Digital Servo".
Wheel hubs fitted with steel ball bearings, replacing plastic bushings. Control A arms and steering knuckle shimmed. Steering linkages fitted with spherical ball joints.

Chassis made from aluminum stock cut, drilled and fitted.

  • AXE401 28X2 i2c Master
  • Pololu Dual VNH5019 Motor Driver Shield
  • APC Series Transparent Transceiver Module APC220-43
  • Pololu Micro Maestro 6 Servo Controller
  • AXE022 40X2 i2c Slave
  • Li Po 5000mAh Battery
  • Power ON/OFF switch
Basic test program for forward, reverse and steering.

Controller is a mockup on AXE401 with APC220 Transceiver.

Stage two:

Build controller into orginal pistol grip unit, keeping all switches, led and trim pots with all other PCB components removed.

Stage three:

Add sensors.

Stage four:

Complete all code.

Last edited:


Senior Member
Looks great all around except for stage four. Nobody EVER completes all the code. :)


Senior Member
Awesome project!
Well done!
I agree with above comment tho, would love to see the whole code!
Thanks for sharing!