Arduino Project - 4WD CAR WITH MULTIPLE MODES

This is the first project that i will publish on GitHub. It will help me understand GitHub and help me keep track of software versions until i don't have the final product.

Features:

* This Car Chassis Kits can be a good DIY choice for you at home
* 100% Brand new and high quality
* 20 line Speed Encoder, more accurate than 6 or 10 one.
* The mechanical structure is simple, convenient installation.
* The height between two chassis can be change by different copper pillar.
* The four turn speed dc motor flexible, directional well. Quad, chronological horsepower. Chassis and stability is very easy to extend
* The car comes with speed encoder, cooperate with our speed of photoelectric, can rapidly form a speed measuring system. Can speed, range, form a closed loop system.

Specifications:

* Working Voltage: DC 3V/5V/6V
* Working Current: 100mA/100mA/120mA
* Ni-load (with wheel): 100 RPM/190 RPM/240 RPM
* Speed (no-load): 20 m/min / 39 m/min / 48 m/min
* Noise: ＜65 db
* Wheel Diameter: 66 mm(approx)
* Colors: Clear/ Black/ Red/ Blue/ Green(as pictures show)
* Dimensions(L*W*H): 25.5* 15.5* 6.5 cm(approx)

Package contents:

4 * Tires
8 * Fasteners
4 * 20 line speed encoders
2 * Smart car chassis
4 * DC gear motors
1 * Set of Screw, Nut and Copper Pillar

Picture of the project for now

Links for specific parts of the project

1. DC MOTOR CONTROL CODE
2. SERVO CONTROL CODE