RC MARS Rover Mk II

cults3d

VIDEO: https://www.youtube.com/watch?v=puso_W5l1AA Arduino files are available in a RAR archive. Bill of Materials: * 6x 9g servo (TG9e, TowerPro SG90) * 6x 9g servo with metal gear (TGY-5009M) * Arduino Mega 2560 * SBEC Lipo 5/6V 5/6A for 3S lipol * 3S Li-pol about 1300mAh * 12x servo extension cable (10-30cm) * 12x resistor 2.2K ohm * Universal PCB * Green LED 3mm * Red LED 3mm * Yellow LED 3mm * 3x resistor 160 Ohm * Some pins * 42x screw M2x6 * 6x screw M2.5x6 * 2x screw M3x25 * 8x screw M3x6 * 8x nut M3 * 4x nut M2 * 4x white LED 5mm * 4x red LED 5mm * RC TX and RX * Connector to Arduino * Cable ties * 3D printed parts Arduino Setup: After building the Rover, it is necessary to center the servos. Upload this file to the Arduino: ```c // 2 - 7 for all steering servos // 8 - 13 for all wheels servos int pin = 13; check all servos with serial monitor for center position. My value is about 1300-1500. Value write to this file, and upload to Arduino. // Data from calibration servos - center position of servo int W1_center = 1350; int W2_center = 1390; int W3_center = 1360; int W4_center = 1370; int W5_center = 1435; int W6_center = 1355; int S1_center = 1500; int S2_center = 1480; int S3_center = 1420; int S4_center = 1410; int S5_center = 1480; int S6_center = 1480; ``` Now, you need to center the signal from RC. Connect RX to PCB and Arduino connect with PC. Control stick on TX set to neutral. Serial monitor write some values. Copy this values to Excel and make average value (about 50 values is OK). Repeat to second channel. ```c // calibration RX signal Serial.println(value_ch1); and // calibration RX signal Serial.println(value_ch2); ``` Servo Modifying: Servos with metal gear are used for wheels. You must modify them to countinous rotating. Cut off potentiometer, add 2 resistors, cut off pin on tooth wheel. Info: http://mochr.cz/3d-tisk/mars-rover/