diff --git a/scripts/examples/Arduino/37-Audio/audio_fft.py b/scripts/examples/Arduino/37-Audio/audio_fft.py index be0faecdb..1883d52f0 100644 --- a/scripts/examples/Arduino/37-Audio/audio_fft.py +++ b/scripts/examples/Arduino/37-Audio/audio_fft.py @@ -31,7 +31,7 @@ def draw_audio_bar(img, level, offset): fb.draw_rectangle(SIZE+offset, SIZE - ((i+1)*blk_size) + blk_space, 20, blk_size - blk_space, color, 1, True) while (True): - if (raw_buf): + if (raw_buf != None): pcm_buf = np.frombuffer(raw_buf, dtype=np.int16) raw_buf = None fft_buf = sp.signal.spectrogram(pcm_buf[0::2])