Quantity   Component name
1 × Tiva-C http://www.ti.com/tool/ek-tm4c123gxl
1 × GPS module GPS U-blox NEO-6M
2 × stepper motor 28BYJ-48 modified for bipolar windings (https://coeleveld.com/wp-content/uploads/2016/10/Modifying-a-28BYJ-48-step-motor-from-unipolar-to-bipolar.pdf)
2 × stepper motor driver (DRV8825 or A4988) stepper motor chip on carrier board - order without header pins
1 × Bluetooth module HC-05 Master version
1 × graphic LCD Nokia 5110 preferably with red backlight
1 × analog joystick latest firmware supports analog in place of old-school Atari/Commodore joystick
1 × battery: several Ah capacity 12V, or any other up to the limit of stepper motor driver chip
1 × misc (resistors, caps, transistors, buzzer)
1 × DC/DC converter KIM-055L