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The interface two comes with two joystick ports that are mapped to keyboard keys. Each joystick direction switch and the fire switch replicate a keypress on the Spectrum keyboard. This differs from the then-popular Kempston Interface , whose joystick switches are separate to the keyboard and read using a Z80 IN 31 instruction.
The interface devices are also defined with subclass descriptors. The subclass descriptor is used to declare a device bootable. A boot device meets a minimum adherence to a basic protocol and will be recognized by a computer's BIOS. Each USB HID interface communicates with the host using either a control pipe or an interrupt pipe.
4-way Mini-Joystick with center push-button; Light, temperature, and voltage (0-5 V range) sensors (light sensor no longer included due to the RoHS directive) Piezo speaker; Solder pads for user-supplied connectors: 2 8-bit I/O ports, ISP, USI, JTAG; RS232 level converter & interface (Cable and connector provided by end user)
Kempston joystick interface Kempston Interface plugged into a Spectrum Plus ZX Spectrum Kempston Joystick Interface with 3 ports and cartridge slot. The Kempston Interface is a joystick interface used on the ZX Spectrum series of computers that allows controllers complying with the de facto Atari joystick port standard (using the DE-9 connector) to be used with the machine.
Arduino layout-compatible board, designed for use with a USB-TTL serial cable. DuinoBot v1.x [89] ATmega32U4 RobotGroup Argentina [90] Arduino fully compatible board, with integrated power supply and controllers designed for robotics. Compatible as well with the system "Multiplo" eJackino [91] Kit by CQ publisher in Japan.
The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2010. [2] [3] The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. [1]
The HUI protocol was created jointly by Mackie and Digidesign in 1997 for Mackie's Human User Interface (HUI), the first non-Digidesign hardware control surface for Digidesign’s Pro Tools. [3] [4] It was subsequently implemented by hardware controllers from manufacturers such as Solid State Logic, [5] Yamaha, [3] TASCAM, [2] and Novation. [3]
Arduino USB v2.0 Changed: USB replaces RS-232 interface, Improved: Arduino can be powered from host Arduino Extreme [45] Arduino Yes ATmega8 [44] 16 MHz Arduino 3.2 in × 2.1 in [ 81.3 mm × 53.3 mm ] USB The Arduino Extreme uses many more surface mount components than previous USB Arduino boards and comes with female pin headers. [45]