M5 Update and Web Voice Agent using Terp AI.

This commit is contained in:
2026-04-12 08:33:28 -04:00
parent 88de831198
commit e6c7ed230b
12 changed files with 1038 additions and 524 deletions
-177
View File
@@ -1,177 +0,0 @@
# --- FACE ASSETS ---
C = {
'0': 0x222222,
'Y': 0xFFFF00,
'R': 0xFF0000,
'W': 0xFFFFFF,
'B': 0x000000,
'P': 0xFF8888,
'D': 0x555555
}
f_s_o = [
"0000000000000000",
"0000000000000000",
"000WWW0000WWW000",
"00WWBW0000WWBW00",
"00WWBW0000WWBW00",
"000WWW0000WWW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"YY000000000000YY",
"0YY0000000000YY0",
"00YY00000000YY00",
"000YYYYYYYYYY000",
"00000YYYYYY00000",
"0000000000000000",
"0000000000000000"
]
f_s_h = [
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000WWW0000WWW000",
"00WWBW0000WWBW00",
"000WWW0000WWW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"YY000000000000YY",
"0YY0000000000YY0",
"00YY00000000YY00",
"000YYYYYYYYYY000",
"00000YYYYYY00000",
"0000000000000000",
"0000000000000000"
]
f_s_c = [
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"00WWWW0000WWWW00",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"YY000000000000YY",
"0YY0000000000YY0",
"00YY00000000YY00",
"000YYYYYYYYYY000",
"00000YYYYYY00000",
"0000000000000000",
"0000000000000000"
]
f_a_o = [
"0000000000000000",
"0DDDD000000DDDD0",
"00DDDD0000DDDD00",
"000DDDD00DDDD000",
"000WWW0000WWW000",
"00WWBB0000BBWW00",
"000WWW0000WWW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000000RRRR000000",
"0000RRRRRRRR0000",
"00RRRR0000RRRR00",
"0RRR00000000RRR0",
"0000000000000000",
"0000000000000000"
]
f_a_h = [
"0000000000000000",
"0DDDD000000DDDD0",
"00DDDD0000DDDD00",
"000DDDD00DDDD000",
"0000000000000000",
"000WWW0000WWW000",
"00WWBB0000BBWW00",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000000RRRR000000",
"0000RRRRRRRR0000",
"00RRRR0000RRRR00",
"0RRR00000000RRR0",
"0000000000000000",
"0000000000000000"
]
f_a_c = [
"0000000000000000",
"0DDDD000000DDDD0",
"00DDDD0000DDDD00",
"000DDDD00DDDD000",
"0000000000000000",
"0000000000000000",
"000WW000000WW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000000RRRR000000",
"0000RRRRRRRR0000",
"00RRRR0000RRRR00",
"0RRR00000000RRR0",
"0000000000000000",
"0000000000000000"
]
f_t_1 = [
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000WWW0000WWW000",
"00WWWW0000WWWW00",
"000WWW0000WWW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"000YYYYYYYYYY000",
"0000000000000000",
"0000000000000000",
"0000000000000000"
]
f_t_2 = [
"0000000000000000",
"0000000000000000",
"00DD00000000DD00",
"000DD000000DD000",
"0000000000000000",
"000WWW0000WWW000",
"00WWBW0000WWBW00",
"000WWW0000WWW000",
"0000000000000000",
"0000000000000000",
"0000000000000000",
"0000RRRRRRRR0000",
"000RR000000RR000",
"0000000000000000",
"0000000000000000",
"0000000000000000"
]
def d_s(lcd, f, s_x, s_y, p_s):
for r in range(16):
c = 0
while c < 16:
s_c = c
v = f[r][c]
while c < 16 and f[r][c] == v:
c += 1
w = c - s_c
x_p = s_x + (s_c * p_s)
y_p = s_y + (r * p_s)
lcd.fillRect(x_p, y_p, w * p_s, p_s, C[v])
+515 -267
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@@ -3,73 +3,277 @@ import time
import machine
import json
import math
import _thread
import websocket
import usocket
import ubinascii
import os
import gc
from m5stack import *
from m5ui import *
from uiflow import *
C = { '0': 0x222222, 'Y': 0xFFFF00, 'R': 0xFF0000, 'W': 0xFFFFFF, 'B': 0x000000, 'D': 0x555555 }
f_s_o = "00000000000000000000000000000000000WWW0000WWW00000WWBW0000WWBW0000WWBW0000WWBW00000WWW0000WWW000000000000000000000000000000000000000000000000000YY000000000000YY0YY0000000000YY000YY00000000YY00000YYYYYYYYYY00000000YYYYYY0000000000000000000000000000000000000"
f_s_c = "0000000000000000000000000000000000000000000000000000000000000000000000000000000000WWWW0000WWWW00000000000000000000000000000000000000000000000000YY000000000000YY0YY0000000000YY000YY00000000YY00000YYYYYYYYYY00000000YYYYYY0000000000000000000000000000000000000"
f_t_1 = "0000000000000000000000000000000000000000000000000000000000000000000WWW0000WWW00000WWWW0000WWWW00000WWW0000WWW00000000000000000000000000000000000000000000000000000000000000000000000000000000000000YYYYYYYYYY000000000000000000000000000000000000000000000000000"
f_t_2 = "0000000000000000000000000000000000DD00000000DD00000DD000000DD0000000000000000000000WWW0000WWW00000WWBW0000WWBW00000WWW0000WWW0000000000000000000000000000000000000000000000000000000RRRRRRRR0000000RR000000RR000000000000000000000000000000000000000000000000000"
f_listen = "0000000000000000000000000000000000WWWW0000WWWW0000WBBW0000WBBW0000WBBW0000WBBW0000WWWW0000WWWW0000000000000000000000000000000000000000000000000000000YYYYYY000000000YY0000YY00000000YY0000YY000000000YYYYYY00000000000000000000000000000000000000000000000000000"
f_speak = "00000000000000000000000000000000000WWW0000WWW00000WWBW0000WWBW0000WWBW0000WWBW00000WWW0000WWW0000000000000000000000000000000000000000000000000000000YYYYYYYY0000000YY000000YY000000YY000000YY0000000YYYYYYYY0000000000000000000000000000000000000000000000000000"
f_angry = "00000000000000000DDDD000000DDDD000DDDD0000DDDD00000DDDD00DDDD000000WWW0000WWW00000WWBB0000BBWW00000WWW0000WWW000000000000000000000000000000000000000000000000000000000RRRR0000000000RRRRRRRR000000RRRR0000RRRR000RRR00000000RRR000000000000000000000000000000000"
def d_s(lcd, f, s_x, s_y, p_s):
for r in range(16):
c = 0
i = r * 16
while c < 16:
s_c = c
v = f[i + c]
while c < 16 and f[i + c] == v:
c += 1
w = c - s_c
lcd.fillRect(s_x + s_c * p_s, s_y + r * p_s, w * p_s, p_s, C[v])
setScreenColor(0x222222)
# --- CONFIGURATION ---
# ==========================================
# CONFIGURATION
# ==========================================
WIFI_SSID = "Blobby"
WIFI_PASS = "73556088"
# Update this to the IP address of your backend server
WS_URL = "ws://192.168.137.1:8000/ws/voice"
# ---------------------
WS_URL = "ws://192.168.137.1:8000/ws/voice"
def draw_status(status, color):
# Location Settings for Noise Monitoring
CURRENT_ROOM_ID = "mckeldin"
CURRENT_LAT = 38.986021
CURRENT_LNG = -76.944949
# Audio Settings
TARGET_SAMPLE_RATE = 8000 # Voice recording sample rate
AUDIO_CHUNK_SIZE = 2048
# ==========================================
# WEBSOCKET CLIENT
# ==========================================
class WSClient:
def __init__(self, sock):
self._sock = sock
def send(self, data):
if isinstance(data, str):
data = data.encode()
opcode = 0x1
else:
opcode = 0x2
length = len(data)
mask_key = os.urandom(4)
header = bytearray()
header.append(0x80 | opcode)
if length < 126:
header.append(0x80 | length)
elif length < 65536:
header.append(0x80 | 126)
header.append((length >> 8) & 0xFF)
header.append(length & 0xFF)
else:
header.append(0x80 | 127)
for i in range(7, -1, -1):
header.append((length >> (8 * i)) & 0xFF)
header.extend(mask_key)
masked = bytearray(data)
for i in range(length):
masked[i] ^= mask_key[i % 4]
self._sock.send(header + masked)
def recv(self):
hdr = self._recv_exact(2)
if not hdr or len(hdr) < 2:
return None
opcode = hdr[0] & 0x0F
is_masked = (hdr[1] & 0x80) != 0
length = hdr[1] & 0x7F
if length == 126:
ext = self._recv_exact(2)
length = (ext[0] << 8) | ext[1]
elif length == 127:
ext = self._recv_exact(8)
length = 0
for b in ext:
length = (length << 8) | b
mask_key = self._recv_exact(4) if is_masked else None
payload = self._recv_exact(length) if length > 0 else b""
if is_masked and mask_key and payload:
payload = bytearray(payload)
for i in range(len(payload)):
payload[i] ^= mask_key[i % 4]
payload = bytes(payload)
if opcode == 0x8:
return None
if opcode == 0x9:
self._send_pong(payload)
return self.recv()
if opcode == 0x1:
return payload.decode() if payload else ""
return payload
def _send_pong(self, data):
mask_key = os.urandom(4)
length = len(data) if data else 0
header = bytearray([0x8A, 0x80 | length])
header.extend(mask_key)
if data:
masked = bytearray(data)
for i in range(length):
masked[i] ^= mask_key[i % 4]
self._sock.send(header + masked)
else:
self._sock.send(header)
def _recv_exact(self, n):
buf = bytearray(n)
pos = 0
while pos < n:
chunk = self._sock.recv(n - pos)
if not chunk:
return None
buf[pos:pos + len(chunk)] = chunk
pos += len(chunk)
return bytes(buf)
def close(self):
try:
self._sock.send(bytearray([0x88, 0x80, 0, 0, 0, 0]))
except:
pass
try:
self._sock.close()
except:
pass
def ws_connect(url):
if url.startswith("ws://"):
rest = url[5:]
else:
raise ValueError("Only ws:// supported")
if "/" in rest:
host_port = rest.split("/", 1)[0]
path = "/" + rest.split("/", 1)[1]
else:
host_port = rest
path = "/"
if ":" in host_port:
host = host_port.split(":")[0]
port = int(host_port.split(":")[1])
else:
host = host_port
port = 80
addr = usocket.getaddrinfo(host, port)[0][-1]
sock = usocket.socket()
sock.connect(addr)
sock.settimeout(15)
key = ubinascii.b2a_base64(os.urandom(16)).strip().decode()
req = (
"GET %s HTTP/1.1\r\n"
"Host: %s\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Key: %s\r\n"
"Sec-WebSocket-Version: 13\r\n"
"\r\n"
) % (path, host_port, key)
sock.send(req.encode())
resp = b""
while b"\r\n\r\n" not in resp:
b = sock.recv(1)
if not b:
sock.close()
raise Exception("Closed during handshake")
resp += b
status_line = resp.split(b"\r\n")[0]
if b"101" not in status_line:
sock.close()
raise Exception("Upgrade failed: " + status_line.decode())
return WSClient(sock)
# ==========================================
# UI & UTILITY FUNCTIONS
# ==========================================
_cur_face = None
def set_face(face):
global _cur_face
if face and face != _cur_face:
d_s(lcd, face, 80, 25, 10)
_cur_face = face
def draw_status(status, color, face=None):
lcd.fillRect(0, 220, 320, 20, 0x222222)
lcd.print(status, int((320 - len(status) * 8) / 2), 220, color)
if face:
set_face(face)
lcd.print("Connecting to WiFi...", 0, 0, 0xFFFFFF)
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(WIFI_SSID, WIFI_PASS)
def connect_wifi():
lcd.clear()
lcd.print("Connecting to WiFi...", 0, 0, 0xFFFFFF)
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
if not wlan.isconnected():
wlan.connect(WIFI_SSID, WIFI_PASS)
attempts = 0
while not wlan.isconnected() and attempts < 20:
time.sleep(0.5)
attempts += 1
if wlan.isconnected():
lcd.clear()
lcd.print("WiFi Connected!", 0, 0, 0x00FF00)
lcd.print(wlan.ifconfig()[0], 0, 20, 0x00FF00)
time.sleep(1)
lcd.clear()
else:
lcd.clear()
lcd.print("WiFi Failed", 0, 0, 0xFF0000)
time.sleep(2)
lcd.clear()
return wlan.isconnected()
# Simple connection loop
attempts = 0
while not wlan.isconnected() and attempts < 20:
time.sleep(0.5)
attempts += 1
# ==========================================
# AUDIO I/O
# ==========================================
if wlan.isconnected():
lcd.clear()
lcd.print("WiFi Connected!", 0, 0, 0x00FF00)
lcd.print(wlan.ifconfig()[0], 0, 20, 0x00FF00)
time.sleep(1)
lcd.clear()
else:
lcd.clear()
lcd.print("WiFi Failed", 0, 0, 0xFF0000)
time.sleep(2)
lcd.clear()
try:
adc = machine.ADC(34)
adc.atten(machine.ADC.ATTN_11DB)
except:
def get_adc():
try:
adc = machine.ADC(machine.Pin(34))
adc.atten(machine.ADC.ATTN_11DB)
a = machine.ADC(34)
a.atten(machine.ADC.ATTN_11DB)
return a
except:
adc = None
try:
a = machine.ADC(machine.Pin(34))
a.atten(machine.ADC.ATTN_11DB)
return a
except:
return None
def get_db():
if not adc: return 30
def get_db(adc_obj):
if not adc_obj: return 30
sum_v = 0
sum_sq = 0
count = 0
end_t = time.ticks_ms() + 40
while time.ticks_ms() < end_t:
try:
v = adc.read()
v = adc_obj.read()
sum_v += v
sum_sq += v * v
count += 1
except:
pass
if count == 0: return 30
mean = sum_v / count
@@ -79,249 +283,293 @@ def get_db():
amp = math.sqrt(variance)
if amp <= 1: return 30
# Use your specific calculation formula to properly scale to human DB
db = 20 * math.log10(amp) + 25
return db
# Scale to human DB
return 20 * math.log10(amp) + 25
def init_mic():
def init_manual_spk():
try:
if hasattr(machine.I2S, "RX"):
audio_in = machine.I2S(
0,
sck=machine.Pin(0),
ws=machine.Pin(0),
sd=machine.Pin(34),
mode=machine.I2S.RX,
bits=16,
format=machine.I2S.MONO,
rate=16000,
ibuf=4096
)
return audio_in
else:
# Fallback for old Micropython (e.g. M5Stack UIFlow)
mode = getattr(machine.I2S, "MODE_MASTER", 1) | getattr(machine.I2S, "MODE_RX", 2)
if hasattr(machine.I2S, "MODE_PDM"):
mode |= getattr(machine.I2S, "MODE_PDM", 0)
cfmt = getattr(machine.I2S, "CHANNEL_FMT_ALL_LEFT", 1)
dfmt = getattr(machine.I2S, "FORMAT_I2S", 1)
try_args = [
([getattr(machine.I2S, "NUM0", 0), mode, 16000, 16, cfmt, dfmt], {}),
([getattr(machine.I2S, "NUM0", 0), mode, 16000, 16], {}),
([getattr(machine.I2S, "NUM0", 0)], {"mode": mode, "sample_rate": 16000, "bits": 16, "channel_format": cfmt, "data_format": dfmt}),
([getattr(machine.I2S, "NUM0", 0)], {"mode": mode, "sample_rate": 16000, "bits": 16}),
([getattr(machine.I2S, "NUM0", 0)], {"mode": mode, "bck": 0, "ws": 0, "sd": 34, "sample_rate": 16000, "bits": 16}),
([], {"mode": mode, "sample_rate": 16000, "bits": 16}),
([getattr(machine.I2S, "NUM0", 0)], {"mode": mode}),
([], {"mode": mode}),
]
audio_in = None
last_e = None
for args, kwargs in try_args:
try:
audio_in = machine.I2S(*args, **kwargs)
break
except Exception as e:
last_e = e
if audio_in is None:
raise Exception("Mic fallback failed: " + str(last_e))
return audio_in
except Exception as e:
print("Mic I2S Error:", repr(e))
lcd.print("Mic Err: " + str(e)[:20], 0, 40, 0xFF0000)
return None
def init_spk():
try:
if hasattr(machine.I2S, "TX"):
audio_out = machine.I2S(
1,
sck=machine.Pin(12),
ws=machine.Pin(0),
sd=machine.Pin(25), # M5Stack Core/GO speaker is typically on Pin 25
mode=machine.I2S.TX,
bits=16,
format=machine.I2S.MONO,
rate=16000,
ibuf=8192
)
return audio_out
else:
mode = getattr(machine.I2S, "MODE_MASTER", 1) | getattr(machine.I2S, "MODE_TX", 2)
if hasattr(machine.I2S, "MODE_DAC_BUILT_IN"):
mode |= machine.I2S.MODE_DAC_BUILT_IN
# M5GO Core speaker sits on DAC 1 (Pin 25)
# Therefore we MUST strictly use DAC_BUILT_IN. Digital I2S on this pin is not supported!
if hasattr(machine.I2S, "MODE_DAC_BUILT_IN"):
mode = getattr(machine.I2S, "MODE_MASTER", 1) | getattr(machine.I2S, "MODE_TX", 2) | getattr(machine.I2S, "MODE_DAC_BUILT_IN", 0)
cfmt = getattr(machine.I2S, "CHANNEL_FMT_RIGHT_LEFT", 1)
dfmt = getattr(machine.I2S, "FORMAT_I2S_MSB", 1)
try_args = [
([getattr(machine.I2S, "NUM1", 1), mode, 16000, 16, cfmt, dfmt], {}),
([getattr(machine.I2S, "NUM1", 1), mode, 16000, 16], {}),
([getattr(machine.I2S, "NUM1", 1)], {"mode": mode, "sample_rate": 16000, "bits": 16, "channel_format": cfmt, "data_format": dfmt}),
([getattr(machine.I2S, "NUM1", 1)], {"mode": mode, "sample_rate": 16000, "bits": 16}),
([getattr(machine.I2S, "NUM1", 1)], {"mode": mode, "bck": 12, "ws": 0, "sd": 25, "sample_rate": 16000, "bits": 16}),
i2s_id = getattr(machine.I2S, "NUM0", 0)
# Different MicroPython versions vary wildly on kwarg vs positional I2S init structure
try_sigs = [
([i2s_id], {"mode": mode, "rate": 16000, "bits": 16, "format": cfmt, "ibuf": 2048}),
([i2s_id, mode, 16000, 16, cfmt, dfmt], {}),
([i2s_id, mode, 16000, 16], {}),
([i2s_id], {"mode": mode, "sample_rate": 16000, "bits": 16, "channel_format": cfmt, "data_format": dfmt}),
([i2s_id], {"mode": mode, "sample_rate": 16000, "bits": 16}),
([], {"mode": mode, "sample_rate": 16000, "bits": 16}),
([getattr(machine.I2S, "NUM1", 1)], {"mode": mode}),
([], {"mode": mode}),
([i2s_id], {"mode": mode, "rate": 16000, "bits": 16})
]
audio_out = None
last_e = None
for args, kwargs in try_args:
last_err = None
for args, kwargs in try_sigs:
try:
audio_out = machine.I2S(*args, **kwargs)
break
return machine.I2S(*args, **kwargs)
except Exception as e:
last_e = e
if audio_out is None:
raise Exception("Spk fallback failed: " + str(last_e))
return audio_out
last_err = e
print("I2S Fallback err (exhausted):", last_err)
return None
else:
print("ERR: DAC_BUILT_IN missing on this firmware")
return None
except Exception as e:
print("Spk I2S Error:", repr(e))
lcd.print("Spk Err: " + str(e)[:20], 0, 60, 0xFF0000)
print("I2S Init err:", e)
return None
def deinit_i2s(i2s_obj):
if i2s_obj:
try:
if hasattr(i2s_obj, 'deinit'):
i2s_obj.deinit()
except Exception as e:
print("I2S Deinit Error:", e)
ws = None
def connect_ws():
global ws
try:
ws = websocket.WebSocket()
ws.connect(WS_URL)
return True
except Exception as e:
draw_status("WS Connection Error", 0xFF0000)
def stream_http_audio(url):
print("Streaming I2S direct from HTTP...")
audio_out = init_manual_spk()
if not audio_out:
print("Speaker init failed, cannot play audio via DAC")
return False
draw_status("Hold Button A to Talk", 0xFFFFFF)
buf = bytearray(1024)
# Noise monitoring variables
l_db_s = ""
s_db = 30.0
# Location settings - change this depending on where the M5GO is placed
CURRENT_ROOM_ID = "mckeldin"
CURRENT_LAT = 38.986021
CURRENT_LNG = -76.944949
last_db_post_time = 0
while True:
# m5stack core button check
if btnA.isPressed():
if not ws:
draw_status("Connecting...", 0xFFFF00)
if not connect_ws():
time.sleep(1)
continue
draw_status("Listening...", 0x0000FF)
# Read and send audio while button is held
audio_in = init_mic()
while btnA.isPressed():
try:
if audio_in:
num_read = audio_in.readinto(buf)
if num_read and num_read > 0 and ws:
ws.send(buf[:num_read])
except Exception as e:
pass
deinit_i2s(audio_in)
audio_in = None
# Button released
draw_status("Thinking...", 0xFFFF00)
try:
if ws:
ws.send(json.dumps({"event": "stop_listening"}))
# Wait for response audio
draw_status("Speaking...", 0x00FF00)
audio_out = init_spk()
while True:
resp = ws.recv()
if resp and isinstance(resp, bytes):
if len(resp) == 0:
break # End of audio transmission
# Briefly pause face animation updates while speaker is playing
# to prevent dropping packets or stuttering
if audio_out:
audio_out.write(resp)
else:
break # Empty or non-bytes response means end
deinit_i2s(audio_out)
audio_out = None
except Exception as e:
draw_status("Error during playback", 0xFF0000)
ws = None # force reconnect next time
draw_status("Hold Button A to Talk", 0xFFFFFF)
# ---------------------------------------------
# NOISE MONITORING LOOP
# ---------------------------------------------
r_db = get_db()
s_db = (s_db * 0.8) + (r_db * 0.2)
db = int(s_db)
if db < 40:
i_c = 0x89b4fa
elif db < 55:
i_c = 0x94e2d5
elif db < 65:
i_c = 0xf9e2af
elif db < 80:
i_c = 0xfab387
if url.startswith("http://"):
rest = url[7:]
else:
i_c = 0xf38ba8
lcd.fillRect(0, 0, 320, 4, i_c)
db_s = "Noise: %d dB" % db
if db_s != l_db_s:
lcd.fillRect(0, 4, 150, 15, 0x222222)
lcd.print(db_s, 5, 4, i_c)
l_db_s = db_s
raise ValueError("Only http:// supported")
# ---------------------------------------------
# POST DB DATA PERIODICALLY
# ---------------------------------------------
try:
now_ms = time.ticks_ms()
if time.ticks_diff(now_ms, last_db_post_time) > 15000: # Every 15 seconds
last_db_post_time = now_ms
try:
payload = {
"room_id": CURRENT_ROOM_ID,
"location": {
"type": "Point",
"coordinates": [CURRENT_LNG, CURRENT_LAT]
},
"db": float(db)
}
# Convert ws url from ws://ip:port/ws/voice to http://ip:port/api/study-rooms
http_url = WS_URL.replace("ws://", "http://").replace("/ws/voice", "/api/study-rooms")
import urequests
res = urequests.post(http_url, json=payload)
res.close()
except Exception as e:
print("Failed to post db data:", e)
except Exception as main_e:
pass
if "/" in rest:
host_port = rest.split("/", 1)[0]
path = "/" + rest.split("/", 1)[1]
else:
host_port = rest
path = "/"
time.sleep(0.02)
if ":" in host_port:
host = host_port.split(":")[0]
port = int(host_port.split(":")[1])
else:
host = host_port
port = 80
addr = usocket.getaddrinfo(host, port)[0][-1]
sock = usocket.socket()
sock.connect(addr)
sock.settimeout(30)
req = "GET %s HTTP/1.0\r\nHost: %s\r\n\r\n" % (path, host_port)
sock.send(req.encode())
hdr = b""
while b"\r\n\r\n" not in hdr:
b = sock.recv(1)
if not b:
sock.close()
return False
hdr += b
# Read WAV header
header_left = 44
while header_left > 0:
chunk = sock.recv(header_left)
if not chunk: break
header_left -= len(chunk)
in_buf = bytearray(1024)
out_buf = bytearray(2048)
while True:
n = 0
while n < 1024:
chunk = sock.recv(1024 - n)
if not chunk: break
in_buf[n:n+len(chunk)] = chunk
n += len(chunk)
if n == 0: break
samples = n // 2
for j in range(samples):
idx = j * 2
# Read 16-bit Signed LE
s = in_buf[idx] | (in_buf[idx + 1] << 8)
if s >= 32768: s -= 65536
# Convert to Unsigned + Center Offset for DAC
u = (s + 32768) & 0xFFFF
u_lo = u & 0xFF
u_hi = u >> 8
# Map Stereo for built-in MSB
o_idx = j * 4
out_buf[o_idx] = u_lo
out_buf[o_idx + 1] = u_hi
out_buf[o_idx + 2] = u_lo
out_buf[o_idx + 3] = u_hi
try:
audio_out.write(out_buf[:samples * 4])
except Exception as e:
print("Write err:", e)
break
sock.close()
if hasattr(audio_out, 'deinit'): audio_out.deinit()
return True
# ==========================================
# MAIN LOOP
# ==========================================
def run_main():
if not connect_wifi():
return
adc = get_adc()
ws = None
l_db_s = ""
s_db = 30.0
last_db_post_time = time.ticks_ms()
draw_status("Hold Button A to Talk", 0xFFFFFF, f_s_o)
def maintain_ws():
nonlocal ws
if not ws:
draw_status("Connecting...", 0xFFFF00, f_t_2)
try:
ws = ws_connect(WS_URL)
draw_status("Hold Button A to Talk", 0xFFFFFF, f_s_o)
except Exception as e:
print("WS Err:", e)
ws = None
return ws is not None
while True:
gc.collect()
# --- Voice Interaction ---
if btnA.isPressed():
if maintain_ws():
draw_status("Listening...", 0x0000FF, f_listen)
send_buf = bytearray(AUDIO_CHUNK_SIZE)
buf_pos = 0
total_samples = 0
rec_start_us = time.ticks_us()
# Fastest possible analog capture loop
while btnA.isPressed():
try:
raw = adc.read() if adc else 2048
sample = (raw - 2048) * 16
# Fast clamp
if sample > 32767: sample = 32767
elif sample < -32768: sample = -32768
send_buf[buf_pos] = sample & 0xFF
send_buf[buf_pos + 1] = (sample >> 8) & 0xFF
buf_pos += 2
total_samples += 1
if buf_pos >= AUDIO_CHUNK_SIZE:
if ws: ws.send(bytes(send_buf))
buf_pos = 0
except Exception as e:
print("Rec Err:", e)
break
if buf_pos > 0 and ws:
try:
ws.send(bytes(send_buf[:buf_pos]))
except:
pass
draw_status("Thinking...", 0xFFFF00, f_t_1)
actual_rate = (total_samples * 1000000) // time.ticks_diff(time.ticks_us(), rec_start_us)
print("Captured at", actual_rate, "Hz")
try:
ws.send(json.dumps({"event": "stop_listening", "sample_rate": actual_rate}))
# Wait for TTS ready
resp = ws.recv()
if resp and isinstance(resp, str):
msg = json.loads(resp)
if msg.get("event") == "tts_ready":
# Start direct TCP stream immediately
draw_status("Speaking...", 0x00FF00, f_speak)
http_base = WS_URL.replace("ws://", "http://").replace("/ws/voice", "")
audio_url = http_base + "/api/tts-audio"
try:
stream_http_audio(audio_url)
except Exception as e:
print("Stream Err:", e)
draw_status("Play Failed", 0xFF0000, f_s_c)
time.sleep(1)
elif msg.get("event") == "error":
draw_status("Error: " + msg.get("msg", "")[:10], 0xFF0000, f_s_c)
time.sleep(2)
except Exception as e:
print("Comm Err:", e)
try: ws.close()
except: pass
ws = None
draw_status("Hold Button A to Talk", 0xFFFFFF, f_s_o)
# --- Noise Monitoring ---
r_db = get_db(adc)
s_db = (s_db * 0.8) + (r_db * 0.2)
db_val = int(s_db)
i_c = 0x89b4fa if db_val < 40 else (0x94e2d5 if db_val < 55 else (0xf9e2af if db_val < 65 else (0xfab387 if db_val < 80 else 0xf38ba8)))
lcd.fillRect(0, 0, 320, 4, i_c)
db_s = "Noise: %d dB" % db_val
if db_s != l_db_s:
lcd.fillRect(0, 4, 150, 15, 0x222222)
lcd.print(db_s, 5, 4, i_c)
l_db_s = db_s
# Periodic DB Posting
try:
now_ms = time.ticks_ms()
if time.ticks_diff(now_ms, last_db_post_time) > 15000:
last_db_post_time = now_ms
payload_str = '{"room_id":"%s","location":{"type":"Point","coordinates":[%s,%s]},"db":%s}' % (CURRENT_ROOM_ID, CURRENT_LNG, CURRENT_LAT, db_val)
http_url = WS_URL.replace("ws://", "http://").replace("/ws/voice", "/api/study-rooms")
# Raw socket post
h_p = http_url.split("://")[1].split("/")[0]
p_th = "/" + http_url.split("://")[1].split("/", 1)[1] if "/" in http_url.split("://")[1] else "/"
h_b = h_p.split(":")[0]
p_r = int(h_p.split(":")[1]) if ":" in h_p else 80
addr = usocket.getaddrinfo(h_b, p_r)[0][-1]
s = usocket.socket()
s.settimeout(5)
s.connect(addr)
req = "POST %s HTTP/1.0\r\nHost: %s\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n%s" % (p_th, h_p, len(payload_str), payload_str)
s.send(req.encode())
s.close()
del s, req, payload_str
except:
pass
# Idle Face Blinking logic
if db_val > 67:
set_face(f_angry)
else:
t = time.ticks_ms() % 5000
if t < 200:
set_face(f_s_c)
else:
set_face(f_s_o)
time.sleep(0.02)
if __name__ == "__main__":
try:
run_main()
except Exception as e:
print("Fatal error:", e)
lcd.print("Error: " + str(e), 0, 100, 0xFF0000)