|author||Florian Jung <firstname.lastname@example.org>||2014-06-19 23:22:03 +0200|
|committer||Florian Jung <email@example.com>||2014-06-19 23:51:36 +0200|
1 files changed, 8 insertions, 2 deletions
@@ -1,5 +1,6 @@
This is a Rotary-Dial-to-USB-Interface, based on the USB AVR Lab
+(http://www.ullihome.de/wiki/USBAVRLab/index). For schematics,
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,
@@ -8,6 +9,11 @@ ISP adapter, using USB.
The Rotary-Dial-to-USB-Interface expects a rotary dial to be attached against PB4/5.
+When you look at the front of the connector:
+ ____ ____
+| 9 7 . . . | Attach the two cables for the idle switch at 9 and 0.
+| 0 8 . . . | Attach the two cables for the dial pulse switch at 7 and 8.
+ ----------- (0 and 8 are routed to GND, 9 and 7 to PB4 and PB5.)
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.
@@ -20,7 +26,7 @@ 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,
+dialing a zero, not letting the dial return fully into idle position yet,
and pulling it to zero again.