Update M5StickV-Maixpy.md

2026-05-20 10:23:01 -07:00 · 2020-09-08 15:22:43 +08:00
parent 00cbaf19dc
commit 078d0e17f2
1 changed files with 110 additions and 0 deletions
@@ -718,4 +718,114 @@ clock = time.clock()
 print(clock.fps())
 sys.exit()

+```
+
+## Microphone 
+
+**example**
+
+```python
+
+## M5StickV Mic Record and Speaker Play
+## A button is Play
+## B button is Record
+
+from Maix import GPIO, I2S, FFT
+import image,lcd,math,time,gc,lcd
+from board import board_info
+from fpioa_manager import *
+import audio
+
+# Button
+fm.register(board_info.BUTTON_A, fm.fpioa.GPIO1)
+fm.register(board_info.BUTTON_B, fm.fpioa.GPIO2)
+but_a=GPIO(GPIO.GPIO1, GPIO.IN, GPIO.PULL_UP)
+but_b = GPIO(GPIO.GPIO2, GPIO.IN, GPIO.PULL_UP)
+
+#Microphone I2S Initialize
+
+sample_rate = 22050
+sample_points = 4096
+
+fm.register(board_info.MIC_LRCLK, fm.fpioa.I2S0_WS, force=True)
+fm.register(board_info.MIC_DAT, fm.fpioa.I2S0_IN_D0, force=True)
+fm.register(board_info.MIC_CLK, fm.fpioa.I2S0_SCLK, force=True)
+
+mic_dev = I2S(I2S.DEVICE_0)
+mic_dev.channel_config(mic_dev.CHANNEL_0, mic_dev.RECEIVER, align_mode=I2S.STANDARD_MODE)
+mic_dev.set_sample_rate(sample_rate)
+print(mic_dev)
+
+#Speaker I2s Initialize
+fm.register(board_info.SPK_SD, fm.fpioa.GPIO0)
+spk_sd=GPIO(GPIO.GPIO0, GPIO.OUT)
+spk_sd.value(1)
+fm.register(board_info.SPK_DIN,fm.fpioa.I2S1_OUT_D1)
+fm.register(board_info.SPK_BCLK,fm.fpioa.I2S1_SCLK)
+fm.register(board_info.SPK_LRCLK,fm.fpioa.I2S1_WS)
+wav_dev = I2S(I2S.DEVICE_1)
+print(wav_dev)
+
+#Record Wav File
+def record_wav(fname):
+    lcd.draw_string(20,50,"record_wav")
+    print("Record Wav File Start")
+    player = audio.Audio(path=fname, is_create=True, samplerate=sample_rate)
+    queue = []
+    for i in range(200):
+        tmp = mic_dev.record(sample_points)
+        if len(queue) > 0:
+            ret = player.record(queue[0])
+            queue.pop(0)
+        #lcd.draw_string(20,50,"REC",i)
+        mic_dev.wait_record()
+        queue.append(tmp)
+    player.finish()
+    lcd.clear()
+    print("Record Wav File finish")
+
+#Play Wav File
+def play_wav(fname):
+    lcd.draw_string(20,50,"play_wav")
+    print("Play Wav File Start")
+    player = audio.Audio(path = fname)
+    player.volume(100)
+    wav_info = player.play_process(wav_dev)
+    wav_dev.channel_config(wav_dev.CHANNEL_1,
+        I2S.TRANSMITTER,resolution = I2S.RESOLUTION_16_BIT,
+        align_mode = I2S.STANDARD_MODE)
+    wav_dev.set_sample_rate(sample_rate)
+    while True:
+        ret = player.play()
+        if ret == None:
+            break
+        elif ret==0:
+            break
+    player.finish()
+    lcd.clear()
+    print("Play Wav File finish")
+
+lcd.init()
+lcd.clear()
+lcd.rotation(2)
+
+but_stu_a = 1
+but_stu_b = 1
+
+while(True):
+    if but_a.value() == 0 and but_stu_a == 1:
+        lcd.clear(236, 36, 36)
+        play_wav("record_1.wav")
+        but_stu_a = 0
+    if but_a.value() == 1 and but_stu_a == 0:
+        but_stu_a = 1
+
+
+    if but_b.value() == 0 and but_stu_b == 1:
+        lcd.clear(255,255,0)
+        record_wav("record_1.wav")
+        but_stu_b = 0
+    if but_b.value() == 1 and but_stu_b == 0:
+        but_stu_b = 1
+
 ```