Ez Arduino Gamepad for Robotics Project

cults3d

Introduction - This gamepad is designed for any robotics projects. It is powered up by a 3.7V 18650 lithium battery and the board we use has sufficient 5V output pins for each component. Using lithium battery, it provides reliable and strong power to components. Lithium battery is chargeable, it is more economy and cost effective for long run. Battery recharging is easy, simply by plugging-in the 5V power source to the USB port of the board. Moreover, robot locomotion are controlled by a joystick switch. 16 buttons of matrix switch allows you to bind declaration of robot function. To demo the general purpose of it, we developed Arduino sketches using it to control the robots we designed. Ez MiniKame Mk2 - 8 DOF Quadruped Robot Ez Spidey -12 DOF Quadruped Robot Ez OpenCat These codes are open and freely to distribute. They are good references for you to implement the gamepad control code for your projects. Videos Demo play Ez MiniKame Mk2 - https://youtu.be/mUIyPMDtPAU play Ez Spidey - https://youtu.be/LLlxMSZ1ZfE Software - Arduino sketches on github - uploads Test.ino to check wiring correctness of matrix switch and joystick switch first; open the Serial Monitor to see the button and joystick switch responds; You can modification this program to fit your robotic application. * open and upload Ez-GoBLE-Gamepad.ino for controlling Ez MiniKame Mk2 and Ez Spidey * open and upload Ez-OpenCat-Gamepad.ino for controlling Ez OpenCat Electronics - To build the gamepad you need following components: * HuaDuino and Game Switches Combo kit - HuaDuino is Arduino Nano compatible with enhanced features. It integrates everything on a single PCB. It's a lot easier for people to make a bot with it. Embedded battery charging circuit, battery charging is more convenient. It is inexpensive so it is our favor board to do project. * 2 of HC-05 Bluetooth module; * one is set to master mode, see this tutorial; * the order remains in slave mode plugin the robot * set baud rate to match the baud rate setting in the robot code * a buzzer * a 18650 lithium battery, use this battery clip to hold it * 8 of M2x6 tapping screws * 4 of M3x14 screws * 13 of dupoint wires #Wiring - The connection of components to the board as followings ##joystick switch: VRX_PIN -> A0 VRY_PIN -> A1 SW_PIN -> A2 VCC -> 5V GND -> GND 4x4 matrix switch C1 -> D2 C2 -> D3 C3 -> D4 C4 -> D5 R1 -> D6 R2 -> D7 R3 -> D8 R4 -> D9 buzzer positive polar -> A3 negative polar -> GND