OBD2 ELM327 compatible AllPro adapter with USB On PC desktops the RS-232 serial ports are about to disappear from most computers (especially from laptops), replaced by the USB connection. This project was begun as a response to build simple ELM327 compatible USB adapter for On Board Diagnostic (OBD2) monitoring. USBGame12 - an Interface for Simple Joysticks This interface offers 12 digital inputs presented to the operating system as USB joystick with 4 directional buttons and 8 general purpose buttons. It can be used to connect historic joysticks or for general purpose digital inputs.This project uses an ATmega8 microcontroller from Atmel. and used the software-only usb driver from Objective Development. USB audio DAC I want to build high quality preamplifier with built-in DAC from SPDIF or USB for my power amplifier Leachamp. I had available circuit PCM2902. I tried to design DAC from USB with this circuit on one-sided PCB and I was succesful USB 8bit Interface Board This is a USB (universal serial bus) interface board which can be used to connect 8 (parallel) data lines to the USB. The interface comes with a small internal FIFO (384 byte Tx, 128 bytes Rx) and 4 handshake lines which make it suitable for interfacing microcontroller designs to the USB. It can, also be used as simple 8bit IO when the so-called “bitbang mode” is enabled. Note. however, that in this mode, the bits will not come out in a constant bitrate but in chunks of 64 bytes with specified baud rate followed by a delay. OBD2 ELM327 compatible AllPro adapter with USB On PC desktops the RS-232 serial ports are about to disappear from most computers (especially from laptops), replaced by the USB connection. This project was begun as a response to build simple ELM327 compatible USB adapter for On Board Diagnostic (OBD2) monitoring. |
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