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6024 Results for "keyboard"

  • Just a quick update
  • Log     from SMART Response XE BASIC
  • Well no great progress this time. The main progress was on the status line. Previously there was a problem with the voltage of the battery now fixed with small modification in the initialization of the ADC. The way status is managed has evolved. Previously,...

  • Raspberry Pi Laptop
  • Details     from Raspberry Pi Laptop
  • I'll get it laid out better and add pictures most likely when I'm done.  Just using this as a notes place for the time being. has been on my to do list for along time.  similar to my pc in a briefcase, want to use it for pi testing and other...

  • CorpoRAT
  • Details     from CorpoRAT
  • The project is based on the V-USB implementation of a low speed USB device.Using a customized micronucleus bootloader and the TrinketHidCombo library from Adafruit, CorpoRAT simulates a keyboard + mouse HID device. It randomly moves the...

  • Add ACIA (Serial) Port
  • Log     from MIKBUG on Multicomp
  • There is currently an ACIA emulator which uses the ANSI Display and PS/2 keyboard connection. Adding a second ACIA port which will use I/O pins as a serial port. An FTDI can be attached to these pins which will allow access from a Computer USB port....

  • Minimal Build
  • Log     from MIKBUG on Multicomp
  • Put together a minimal build which runs in the EP2C5 FPGA. It does not use any external SRAM. The features are: -- MC6800 CPU -- Running MIKBUG from back in the day (SmithBug ACIA version) -- 25 MHz -- 4K (internal) RAM version -- MC6850 ACIA UART --...

  • 2020-11-22 Update - Proper PS5 DualSense support
  • Log     from BlueRetro
  • Steam beta client recently added support for DualSense controller. Using USBPcap I was able to get a trace to see how it work. The DualSense use report 0x31 for config and buttons reports. Using the native PS5 mode vs the HID mode allow using the LED...

  • Doing more with less
  • Log     from Mechanical keypad for digital use
  • I'm currently waiting for parts to arrive (shipping to Tbilisi, Georgia, from the US takes a few weeks) and while staring at the project on my workbench I had a small "aha" moment. I realized that my method for connecting the keypad to the Arduino was...

  • Revision 4A PCB Built, Works
  • Log     from VDC-II
  • Just wanted to say that I finally completed building the revision 4A board; most of the hardware was discussed in the previous log entry, but I've fitted the '688 comparator for address decoding as well as the TinyFPGA BX module.  The result is...

  • PiGFX
  • Log     from Retro Sargon Chess Computer
  • 4/11/2020 I got the PiGFX ANSI terminal running on the RPi Zero plugged into my #RC2014 Mini. I've run across two versions; pictured is Version 1.1.2 which has better resolution characters. I found I needed to ignore the  PigFX instructions...

  • Microbox 2K2
  • Details     from Microbox 2K2
  •         A long time ago in a galaxy really quite close by I designed a single board computer called the Microbox 2 (MB2) which was based around the 6809 and FLEX OS. It had a number of advanced (for 1982) features such as integrated...

  • New display
  • Log     from PZ1 6502 laptop
  • I got a new display yesterday, a Newhaven NHD-0440AZ-FL-YBW 40x4 text display with backlight. Not a giant upgrade from the 40x3 display I've used, but this one can be bought new from Mouser, has 33% more lines, has backlight and also a HD44780-compatible...

  • Theory of operation
  • Log     from Melba I
  • A block diagram of the Melba computer is shown below, and looks pretty similar to the first page of the schematic. The 6502 CPU executes instructions from the RAM with some minor help in decoding the address from the CPLD. The PIA is used to read...

  • Configuring Raspberry pi
  • Log     from Retro-PixelBoy
  • The first 22 pins of the RPI are used for the 18-bit DPI interface of the screen (6 per color plus 4 for clock, signal and position). 4 are defined for the I2S interface for sound (I only need 3) 12 are used for controls (4 direction buttons, 4 action...
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