hotpaw2

//
//  RecordAudio.swift
//
//  This is a Swift class (updated for Swift 5)
//    that uses the iOS RemoteIO Audio Unit
//    to record audio input samples,
//  (should be instantiated as a singleton object.)
//
//  Created by Ronald Nicholson on 10/21/16.
//  Copyright © 2017,2019 HotPaw Productions. All rights reserved.

hotpaw2

//
//  Example of Using AVAudioPlayer 
//    to play a buffer of (synthesized) audio samples from memory
//    by converting a [Float] buffer into an in-memory WAV file
//
//  Copyright © 2019 Ronald H Nicholson Jr. All rights reserved.
//  (re)Distribution permitted under the 3-clause New BSD license.
//

import Foundation

hotpaw2

//
//  MyMetalWaterfall.swift
//    version 0.1.105 (updated for Swift 5)
//
//  Demonstrates using a MetalKit compute shader to render a live waterfall RGB bitmap
//    into a UIView
//
//  This is a single file iOS app
//
//  It includes AppDelegate for a minimal demonstration app

hotpaw2

// Hermes Lite 2 Basic Metis Protocol 1 Operation Emulator
// emulates Discovery and a 1 slice receiver (for IQ data from a file)
// uses UDP port 1024
//
// cc fhl2e.c -lpthread -lm -o fhl2
// 
// ( "usage -n -f0 -g -sr -iq \n" )
//   for add noise, add tone frequency & gain, set sample rate, IQ filename

#define FHL2EVERSION 	("1.0.102")	// 2024-02-05  rhn@hotpaw.com

hotpaw2

//
//  ToneOutputUnit.swift
//
//  This is a Swift 3 class (which should be instantiated as a singleton object)
//    that can play a single tone of arbitrary tone and frequency on iOS devices
//    using run-time sinewave synthesis and the Audio Unit v3 API with RemoteIO.
//
//  Created by Ronald Nicholson  rhn@nicholson.com  on 2/20/2016.
//    revised 2016-Sep-08 for Swift 3
//  http://www.nicholson.com/rhn/

hotpaw2

// MyURLStreamTask.swift
// Demonstrates using an NSURLSessionStreamTask to implement a bidirectional TCP socket connection
//
//  by rhn@nicholson.com  2017-03-07
//  distribution: BSD 2-clause
// 

import Foundation

class MyURLStreamTask {

hotpaw2

/* sieve.c */
/* An old small benchmark from Byte Magazine, circa 1983 and 1984, thus suitable for that vintage of computer. */

#include <stdio.h>
#define TIMES (100000L)
 
static unsigned char f[8192];
 
int main()
{

hotpaw2

//
// receive packets via UPD in Swift
// Original: https://gist.github.com/NeoTeo/b6195efb779d925fd7b8
// server only converted to Swift 4  2018-02-24 by rhn@nicholson.com
// 
// swiftc udp_receive.swift -o udp_receive
// 

import Foundation

hotpaw2

rem Some tutorial DSP subroutines for Chipmunk Basic
rem
rem  genstab() Generates a sine table for use by the fft() subroutine
rem  fft()      Implementation of a common in-place DIT FFT algorithm

rem *** genstab(m) - a subroutine to generate sine table of length 2^m ***
rem	*** must be called before calling fft() for
rem         the first time, and if the length 2^m changes

sub genstab(m)

hotpaw2

100 rem SensorTag button press counter
102 rem  This program will connect to and count TI SensorTag button presses.
104 rem  It can count even in the background or with the iPhone display off.
106 rem  Select a Sensor in the List and wait for connection success.
108 rem  Tap the display to exit.
110 rem  for HotPaw Basic 1.7.7 , rhn@hotpaw.com , 2017-12-08
112 rem  
120 fn btle.init()
125 print "Initializing BLE ..."
130 fn sleep(5)