edy555
/ cmuhardcopy.py
Last active
June 2, 2018 17:09
Script to transfer file of hardcopy from R&S CMU200 and format conversion. Requires python-ivi package and wmf2png optionally.
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| #!/usr/bin/env python | |
| import ivi | |
| import sys | |
| import os | |
| import os.path | |
| from optparse import OptionParser | |
| p = OptionParser() | |
| p.add_option('-v', '--verbose', dest="verbose", action='store_true', | |
| help="print verbose.") | |
| p.add_option('-d', '--device', dest="device", metavar="DEV", |
edy555
/ pyaudio-rm.py
Last active
December 13, 2015 01:11
Real time Audio RM (bipolar AM) example on PyAudio.
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| import pyaudio | |
| import numpy as np | |
| import time | |
| CHANNELS = 1 | |
| RATE = 48000 | |
| p = pyaudio.PyAudio() | |
| rm_freq = 10.0 |
edy555
/ SSB-Weaver-IIR-Filter-Design.ipynb
Last active
January 5, 2016 17:21
ソフトウェア無線(CQ出版社インターフェース誌連載記事)で使用するデジタルフィルタの設計手順。jupyterのslideになっているので http://nbviewer.jupyter.org/gist/edy555/ef88c3709c5725c2637f からはプレゼン形式でも見ることが可能。
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edy555
/ SSB-RX-Design.ipynb
Last active
November 12, 2015 15:41
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edy555
/ gpsdo-dac-control-snippet.c
Last active
October 12, 2015 06:14
GPSのPPS信号でOCXOの周波数調整をDACで制御するための適応フィードバックの実装抜粋。see http://ttrftech.tumblr.com/post/131004700971/
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| short phase_err; | |
| short phase_err_int; | |
| short duration_count; | |
| short duration_exp; | |
| #define REFERENCE 10000000L | |
| static void | |
| dac_control_init() | |
| { |
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| #include <stdio.h> | |
| #include <string.h> | |
| #include <stdlib.h> | |
| #include <dirent.h> | |
| #include <math.h> | |
| #include <fcntl.h> | |
| #include <assert.h> | |
| #include <malloc.h> | |
| #include <sys/mman.h> | |
| #include <sys/types.h> |
edy555
/ blink.html
Created
December 2, 2014 06:00
FlashAirでLチカ4種類。html+javascript, python, ruby, shell script http://youtu.be/GXY_FRvI-vY
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| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> | |
| <html> <head> | |
| <title>FlashAir GPIO Test</title> | |
| </head> | |
| <body> | |
| <p> | |
| <input type="button" id="on" value="On"> | |
| <input type="button" id="off" value="Off"> | |
| </p> | |
| <p> |
edy555
/ pickit3-osx10.9.txt
Created
November 27, 2014 23:57
PICkit3 system_profiler SPUSBDataType on Marvericks
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| PICkit 3: | |
| Product ID: 0x900a | |
| Vendor ID: 0x04d8 (Microchip Technology Inc.) | |
| Version: 0.02 | |
| Serial Number: DEFAULT_PK3 | |
| Speed: Up to 12 Mb/sec | |
| Manufacturer: Microchip Technology Inc. | |
| Location ID: 0xfd120000 / 4 | |
| Current Available (mA): 500 |
edy555
/ spectrum.py
Last active
August 29, 2015 14:09
Sound Spectrum Display using Laser Projector and OpenLASE
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| #!/usr/bin/env python | |
| import pyaudio | |
| import pylase as ol | |
| import numpy as np | |
| import sys | |
| import threading | |
| chunk = 1024 | |
| #chunk = 2048 | |
| CHANNELS = 2 |