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Diffstat (limited to 'README')
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@@ -0,0 +1,41 @@ +This is a Rotary-Dial-to-USB-Interface, based on the USB AVR Lab +(http://www.ullihome.de/wiki/USBAVRLab/index). + +This is a tiny board with an ATMEGA8 speaking USB using the V-USB +library. It features a 10-pin-port with some AVR pins routed out, +and also has a bootloader, so it can be programmed without an +ISP adapter, using USB. + + +The Rotary-Dial-to-USB-Interface expects a rotary dial to be attached against PB4/5. + +The program expects the "idle"-switch to be open when the dial is idle, and to be closed +when the rotary dial is not in its idle position. +The "pulse" switch is expected to be closed most of the time, and to be only opened shortly +for each pulse. +(This can be adapted easily). + +When attached to a computer, the device acts like a USB HID keyboard, no +additional drivers are needed. + + +If you want to enter the bootloader, then generate more than 17 dial pulses by +dialing a zero, not letting the dial go fully back into idle position yet, +and pulling it to zero again. + + + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + + For details, see main.c |