This is meant to play Nidhogg with a sword for hitting and a Nunchuck for movement and jump There are two parts for the two players: Sword and Nunchuck.
This program is used to read an MPU-6050 IMU data over I2C and send corresponding keypresses to Nidhogg
The hardware used is an Arduino Leonardo with an MPU-6050 IMU mounted on a sword. The MPU-6050 sensor is mounted on a GY-521 PCB. The SCL pin of the sensor is connected to pin 3 of the Arduino Leonardo and SDA is connected to pin 5 The VCC and GND pins of the sensor are connected to the 5V and GND pins of the Arduino
The Arduino expect the I2C bus to be at 5V and the MPU-6050 expects it to be at 3.3V. However, we just connect the bus directly, the MPU-6050 pulls the lines to 3.3V and the Arduino to 5V, resulting in an idle voltage of approximately 3.6V, which should be acceptable for both the Arduino and the sensor.
The sensitive axis is the gyroscope X axis (appropriate for the current placement of the sensor on the sword)
You'll need the Arduino IDE with the Keyboard library (available from the library store in the IDE, by the Arduino team)
The keyboard key has to be specified by defining the KEY macro with a lowercase ASCII value on a US keyboard.
For non-alphabetic keys, see https://www.arduino.cc/reference/en/language/functions/usb/keyboard/keyboardmodifiers/
The macro needs to be changed for the two players. The default bindings for Nidhogg are 'f' and 'm'.
This program is used to interface a Nintendo Wii Nunchuck and generate keypresses for displacement in Nidhogg
The hardware is an Arduino Micro with a Nunchuck connected.
Pinout: ┌─┐ ┌─┐ │ └───┘ │ │ · · · │ SCL NC GND │ · · · │ VCC NC SDA └───────┘
SCL: Arduino pin 3 SDA: Arduino pin 2 VCC: 3.3V GND: Ground NC: No connection
You'll need the Arduino IDE with the Keyboard library (available from the library store in the IDE, by the Arduino team)
The nunchuck_functions.h file is a slightly modified version of https://github.com/todbot/wiichuck_adapter/blob/master/firmware/WiichuckDemo/nunchuck_funcs.h
Z: jump Joystick left/right: move left/right
The keyboards keys are defined by the macros KEY_JUMP, KEY_LEFT and KEY_RIGHT, with a lowercase ASCII value on a US keyboard.
For non-alphabetic keys, see https://www.arduino.cc/reference/en/language/functions/usb/keyboard/keyboardmodifiers/
The default bindings for Nidhogg can be used by defining the macro LEFT_PLAYER or RIGHT_PLAYER