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@NT7S
NT7S / Si5351_WSPR.ino
Last active Oct 7, 2019
10 Milliwatt Si5351A WSPR Beacon
View Si5351_WSPR.ino
// Si5351_WSPR
//
// Simple WSPR beacon for Arduino Uno, 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.
//
@NT7S
NT7S / attractors.py
Last active Mar 11, 2016
Strange Attractors
View attractors.py
# coding: utf-8
# attractors.py
# 10 March 2016
#
# Copyright 2016 Jason Milldrum
#
# Draw various attractors in a GTK window
# See:
# https://en.wikipedia.org/wiki/Lorenz_system
@NT7S
NT7S / lorenz.py
Last active Mar 10, 2017
Draw the Lorenz system in Python/GTK
View lorenz.py
# lorenz.py
# 5 March 2016
#
# Copyright 2016 Jason Milldrum
#
# Draw the Lorenz system in a GTK window
# See https://en.wikipedia.org/wiki/Lorenz_system
import math
import gi
@NT7S
NT7S / si5351abb_test.py
Created Oct 6, 2015
Si5351A Breakout Board test script
View si5351abb_test.py
import socket
import serial
import time
import sys
import math
import phant
from datetime import datetime
import calendar
# ANSI escape codes for pretty printing
@NT7S
NT7S / Si5351FSQTelemetry.ino
Last active Jul 14, 2019
Si5351 FSQ Telemetry Concept
View Si5351FSQTelemetry.ino
//
// Simple FSQ telemetry 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.
//
// Telemetry is sent in the following format:
@NT7S
NT7S / Si5351_JT65.ino
Created Sep 30, 2015
Simple JT65 beacon for Arduino driving the Si5351
View Si5351_JT65.ino
//
// Simple JT9 beacon for Arduino, with the Etherkit Si5351A Breakout
// Board, by Jason Milldrum NT7S.
//
// Transmit an abritrary message of up to 13 valid characters
// (a Type 6 message).
//
// 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
@NT7S
NT7S / Si5351_JT9.ino
Last active Jul 14, 2019
Simple JT9 beacon for Arduino driving the Si5351
View Si5351_JT9.ino
//
// Simple JT9 beacon for Arduino, with the Etherkit Si5351A Breakout
// Board, by Jason Milldrum NT7S.
//
// Transmit an abritrary message of up to 13 valid characters
// (a Type 6 message).
//
// 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
@NT7S
NT7S / jt9_encode.c
Created Sep 28, 2015
JT9 Encoder in C
View jt9_encode.c
#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
NT7S / compile.txt
Last active Sep 29, 2015
JT65 Encoder in C
View compile.txt
gcc jt65_encode.c encode_rs_int.c init_rs_int.c -o jt65_encode
@NT7S
NT7S / wspr_encode.c
Created Sep 25, 2015
My unoptimized implementation of the WSPR encoding process
View wspr_encode.c
#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
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