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authorArturs Artamonovs <dos21h@gmail.com>2023-07-19 05:08:20 +0100
committerArturs Artamonovs <dos21h@gmail.com>2023-07-19 05:08:20 +0100
commitba67e4e9cc8961124714c5bf7a4be6624a0a695d (patch)
treebae350a5e516553b08c746a4afccf8c1f7521c4b
parentceeccd90f648b4f673d2633df4cb7dafc1bbf5b4 (diff)
downloadpyairspyhf-ba67e4e9cc8961124714c5bf7a4be6624a0a695d.tar.gz
pyairspyhf-ba67e4e9cc8961124714c5bf7a4be6624a0a695d.zip
Fixed table in README
-rw-r--r--README.md1
-rw-r--r--airspy_waterfall.py153
2 files changed, 0 insertions, 154 deletions
diff --git a/README.md b/README.md
index d555884..f6c9a89 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,6 @@ udevadm control --reload-rules
## Supported and tested
-| --- | --- | --- | --- |
| Python | libairspyhf | OS | Status |
| --- |--- | --- | --- |
| 3.9, 3.10 | 1.7.1 | ArchLinux, Ubuntu 20.04 | Supported and tested |
diff --git a/airspy_waterfall.py b/airspy_waterfall.py
deleted file mode 100644
index 255ecd5..0000000
--- a/airspy_waterfall.py
+++ /dev/null
@@ -1,153 +0,0 @@
-import os
-import sys
-import math
-
-import airspyhf
-
-import matplotlib
-import numpy
-import pylab
-
-import pygame
-from pygame import gfxdraw
-
-CENTER_FREQ = 4e6
-SAMPLE_RATE = 196e3
-SAMPLE_NUM = 2048
-GAIN = 'auto'
-
-SCREEN_X = 1025
-SCREEN_Y = 320
-
-MOVE_STEP = 0.1e6
-
-# init RTLSDR and if no then go out
-try:
- pass
-except IOError:
- print
- "Probably RTLSDR device not attached"
- sys.exit(0)
-
-# config rtlsdr device
-#rtl.sample_rate = SAMPLE_RATE
-#rtl.center_freq = CENTER_FREQ
-#rtl.gain = GAIN
-
-
-def iq_abs(c):
- return (math.sqrt((c.real ** 2 + c.imag ** 2)))
-
-
-# point should be normalised to 0.0 ... 1.0
-def color_normalise(point):
- ret = (255, 0, 0)
- # blue
- if (point < 0.3):
- ret = (0, 0, int(point * 255 * 3.3))
- # yello
- elif (point < 0.7):
- ret = (0, int((point - 0.3) * 255 * 2.5), 0)
- # red
- elif (point <= 1.0):
- ret = (int((point - 0.7) * 255 * 3.3), 0, 0)
- else:
- # print "Color Error ", point
- pass
- return ret
-
-
-def color_mapping(x):
- "assumes -50 to 0 range, returns color"
- r = int((x + 50) * 255 // 50)
- r = max(0, r)
- r = min(255, r)
- return (r, r, 100)
-
-
-# def draw_Hz( surface, x, y, hz ):
-
-
-arr = [[0 for i in range(0, SCREEN_X)] for j in range(0, SCREEN_Y)]
-
-# init all pygame modules audio,video and more
-pygame.init()
-
-# [NEW] creates screen surface using constants
-screen = pygame.display.set_mode((SCREEN_X, SCREEN_Y))
-
-#samples = rtl.read_samples(SAMPLE_NUM)
-samples = []
-
-run = True
-line = 0
-while run:
-
- # print "update"
-
- # check for all events that where ocure
- for event in pygame.event.get():
- # if some one clicked on close button
- if event.type == pygame.QUIT:
- # terminate programm
- run = False
- # don't waste your time by waiting while event loop will end
- break
- elif event.type == pygame.KEYDOWN:
- if event.key == pygame.K_LEFT:
- print
- "Left"
- rtl.center_freq -= MOVE_STEP
- print
- "Center freq: ", rtl.center_freq, " Hz"
- elif event.key == pygame.K_RIGHT:
- print
- "Right"
- rtl.center_freq += MOVE_STEP
- print
- "Center freq: ", rtl.center_freq, " Hz"
-
- width = SCREEN_X
- height = SCREEN_Y
-
- samples = rtl.read_samples(SAMPLE_NUM)
- spect = numpy.fft.fft(samples)
- spect = spect[0:len(spect) / 2]
-
- # (1/(Fs*N)) * abs(xdft).^2;
- spect_n = [(1.0 / (SAMPLE_NUM * len(spect))) * iq_abs(x) ** 2 for x in spect]
- spect_n = (10 * numpy.log10(spect_n)).tolist()
-
- # total data size
- spect_len = len(spect_n)
-
- # calculate amount spect points per pixel without rounding
- pixel_width = spect_len / SCREEN_X + 1
- pixel_steps = spect_len / pixel_width
-
- for step in range(0, pixel_steps):
- avg = 0.0
- for i in range(0, pixel_width):
- avg += spect_n[step * pixel_width + i]
- avg /= pixel_width
-
- # print avg
- # gfxdraw.pixel( screen, step, line, color_normalise((100-abs(avg))/10))
- gfxdraw.pixel(screen, step, line, color_mapping(avg))
-
- # draw central freq
- font = pygame.font.Font(None, 20)
- text = font.render(str(rtl.center_freq / 1e6), 1, (200, 30, 30), (0, 0, 0))
- screen.blit(text, (SCREEN_X / 2, SCREEN_Y - 20))
- text = font.render(str((rtl.center_freq + SAMPLE_RATE / 2) / 1e6), 1, (200, 30, 30), (0, 0, 0))
- screen.blit(text, (SCREEN_X - 40, SCREEN_Y - 20))
- text = font.render(str((rtl.center_freq - SAMPLE_RATE / 2) / 1e6), 1, (200, 30, 30), (0, 0, 0))
- screen.blit(text, (20, SCREEN_Y - 20))
-
- pygame.display.flip()
- line += 1
- if (line > SCREEN_Y):
- line = 0
-
-pygame.quit
-