NT7S

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>

uint8_t jt_code(char c)
{
	/* Validate the input then return the proper integer code */
	// Return 255 as an error code if the char is not allowed

NT7S

gcc jt65_encode.c encode_rs_int.c init_rs_int.c -o jt65_encode

NT7S

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>

uint8_t wspr_code(char c)
{
	/* Validate the input then return the proper integer code */
	// Return 255 as an error code if the char is not allowed

NT7S

//
// Simple FSQ beacon for Arduino, with the Etherkit Si5351A Breakout
// Board, by Jason Milldrum NT7S.
// 
// Original code based on Feld Hell beacon for Arduino by Mark 
// Vandewettering K6HX, adapted for the Si5351A by Robert 
// Liesenfeld AK6L <ak6l@ak6l.org>.  Timer setup
// code by Thomas Knutsen LA3PNA.
// 
// Permission is hereby granted, free of charge, to any person obtaining

NT7S

Homebrew Arduino Zero Tool Setup

A guide for installing the tools necessary to build up a homebrew barebones Arduino Zero (based on the Atmel SAMD21G18A microcontroller) on a Linux PC. While this guide is written for a Debian-based distribution such as Linux Mint, it should be adaptable to other distributions fairly easily.

This guide also assumes that we will be using the ATMEL-ICE debugger to write the Arduino bootloader to the SAMD21G18A flash memory via the Cortex Debug Connector.

Install Arduino IDE

You'll need a recent version of the Arduino IDE which has support for the Arduino Zero in the Boards Manager. As of this writing, the latest stable version is 1.6.5, so be sure to use at least this version. Also as of this writing, the version of the Arduino IDE in the Linux Mint repositories is quite old, so don't use that one.

NT7S

Gang,

I am teaching a live CW course using my CD. Two weeks into the course.

About to get to the sending part. So, looking for several ways to get 27
students on the same page. Has to be cheap, they only paid $10 for the
course which goes into the club treasury and I don't charge a dime, as
I don't want to lose any one due to placing a hardship on their budget.

In 2002, Dave Benson K1SWL, came out with the Rock Mite. What?

NT7S

/*
 * si5351example.ino - Simple example of using Si5351Arduino library
 *
 * Copyright (C) 2015 Jason Milldrum <milldrum@gmail.com>
 *
 * 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.
 *

NT7S

//
// Simple Feld Hell beacon for Arduino, with the Etherkit Si5351a breakout
// board, by Jason Milldrum NT7S.
// 
// Original Feld Hell code for Arduino by Mark Vandewettering K6HX, adapted
// for the Si5351A by Robert Liesenfeld AK6L <ak6l@ak6l.org>.  Timer setup
// code by Thomas Knutsen LA3PNA.
// 
// 
// Copyright (c) 2015 Robert Liesenfeld AK6L <ak6l@ak6l.org>

NT7S

/*
Si5351 VFO

By LA3PNA  27 March 2015
Modified by NT7S  25 April 2015

Modified to be Si5351 Arduino v2 compliant by NT7S  21 Nov 2016

This version uses the new version of the Si5351 library from NT7S.
see: http://arduino.cc/en/Reference/AttachInterrupt for what pins that have interrupts.

NT7S

/*
Si5351 VFO

By LA3PNA  27 March 2015

This version uses the new version of the Si5351 library from NT7S.
see: http://arduino.cc/en/Reference/AttachInterrupt for what pins that have interrupts.

UNO and 328 boards: Encoder on pin 2 and 3. Center pin to GND.
Leonardo: Encoder on pin 0 and 1. Center pin to GND.