Commit 122c73ee authored by David Griffith's avatar David Griffith

Partial rewrite of leading comments.

parent ea9c0ac4
......@@ -10,20 +10,21 @@
* This program implements a bluebox, DTMF dialer, redbox, greenbox, and
* 2600 pulse dialer with PWM synthesis on an AVR ATtiny85 8-pin
* microcontroller. A single pin detects 13 buttons through an ADC
* using a resistor ladder. There are 12 memory slots of up to 32 tones
* each. Defaults are configurable.
* using a resistor ladder. There are 12 memory slots of up to 40 tones
* each. Power-on defaults are configurable.
*
* This is a rough translation / reimplementation / expansion of Don Froula's
* PicBasicPro program for implementing a bluebox on a PIC12F683 8-pin
* microcontroller. See http://projectmf.org/ for more information on
* this, for information on VOIP servers modified to accept MF tones
* and how to make your server do the same.
* This program was directly inspired by Don Froula's PicBasicPro program
* for implementing a bluebox on a PIC12F683 8-pin microcontroller. No code
* was reused from that program because of the wide differences between
* PicBasicPro and C.
* See http://projectmf.org/bluebox.html for more information on this.
*
* For all you naysayers, this program and the hardware on which it runs
* are perfectly legal now. The modern commercial switching offices have
* long ago made blueboxing and redboxing impossible on the public phone
* networks. You can still do it on private networks specifically
* programmed to allow for this kind of thing.
* set up to allow for this kind of thing. Information on this can be
* found at http://projectmf.org/.
*
* Resistor network detection values assume a network of fourteen (for
* 13-key keypad) or seventeen (for 16-key keypad) 1K ohm
......
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