🚚 Moves files into separate directories

peripheral/demo.py

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+from machine import Pin
+import utime
+
+trigger = Pin(2, Pin.OUT)
+echo = Pin(3, Pin.IN)
+
+sound = 340 * 100  # m/s * centi = cm/s
+
+
+def ultra():
+    trigger.low()
+    utime.sleep_us(2)
+    trigger.high()
+    utime.sleep_us(10)
+    trigger.low()
+
+    # echo goes high as soon as sound wave is sent
+    #   and returns to low once sound gets back
+    while echo.value() == 0:
+        sent_time = utime.ticks_us()  # us
+
+    while echo.value() == 1:
+        received_time = utime.ticks_us()  # us
+
+    delta_time = received_time - sent_time  # us
+    distance = delta_time / 1_000_000 * sound / 2
+    print("The distance from object is", distance, "cm")
+
+
+while True:
+    ultra()
+    utime.sleep(0.1)

peripheral/main.py

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+import utime
+import ujson
+import network
+import requests
+from machine import Pin
+
+control_button = Pin(16, Pin.IN)
+led = Pin(15, Pin.OUT)
+
+trigger = Pin(2, Pin.OUT)
+echo = Pin(3, Pin.IN)
+
+sound = 340 * 100  # m/s * centi = cm/s
+threshold = 15  # cm
+
+exit_standby_counter = 0
+exit_standby_threshold = 3
+
+# start in standby mode, break if user holds button for 3s
+print("Starting in standby mode...")
+while True:
+    if control_button.value():
+        exit_standby_counter += 1
+    else:
+        exit_standby_counter = 0
+
+    if exit_standby_counter >= exit_standby_threshold:
+        break
+
+    led.toggle()
+    utime.sleep_ms(1000)
+
+
+def show_ok():
+    led.low()
+    for _ in range(10):
+        led.toggle()
+        utime.sleep_ms(100)
+    led.low()
+
+
+print("Starting door alarm...")
+show_ok()
+
+ssid = "HUAWEI-2EEt-2G"
+password = "hxtU2dvx"
+server = "http://192.168.100.4:1323"
+token = "test123"
+
+ultra_counter = 0
+ultra_threshold = 3
+# opened state from previous iteration
+previous_opened = False
+
+
+def connect():
+    print("Connecting...")
+    wlan = network.WLAN(network.STA_IF)
+    wlan.active(True)
+    wlan.connect(ssid, password)
+
+    i = 0
+    while not wlan.isconnected():
+            print(f"Waiting for connection{(i % 3 + 1) * "."}", end="\r")
+            i += 1
+            for _ in range(4):
+                led.toggle()
+                utime.sleep_ms(250)
+
+    print(f"Connected with IP {wlan.ifconfig()[0]}")
+    show_ok()
+
+    # update server to default value
+    send_req(False)
+
+
+def send_req(opened: bool):
+    print("Updating state...", end="\r")
+    
+    data = {"opened": opened}
+    raw = ujson.dumps(data)
+    r = requests.post(f"{server}/write",
+                      headers={"Authorization": token, "Content-Type": "application/json"},
+                      data=raw)
+    print(f"State updated [{r.status_code}]")
+
+
+def ultra():
+    global ultra_counter, previous_opened
+
+    trigger.low()
+    utime.sleep_us(2)
+    trigger.high()
+    utime.sleep_us(10)
+    trigger.low()
+
+    # echo goes high as soon as sound wave is sent
+    #   and returns to low once sound gets back
+    while echo.value() == 0:
+        sent_time = utime.ticks_us()  # us
+
+    while echo.value() == 1:
+        received_time = utime.ticks_us()  # us
+
+    delta_time = received_time - sent_time  # us
+    distance = delta_time / 1_000_000 * sound / 2
+    print(f"distance: {distance} cm")
+
+    if distance < threshold:
+        # door closed
+        led.low()
+        ultra_counter = 0
+
+        # was it closed just now?
+        if previous_opened:
+            send_req(False)
+            previous_opened = False
+    else:
+        # door opened
+        led.high()
+        ultra_counter += 1
+
+        # was it opened just now?
+        if not previous_opened:
+            send_req(True)
+            previous_opened = True
+
+
+connect()
+
+i = 0
+exit_counter = 0
+exit_threshold = 6
+while True:
+    ultra()
+
+    if i == 6:
+        led.toggle()
+        utime.sleep_ms(200)
+        led.toggle()
+        utime.sleep_ms(300)
+        i = 0
+    else:
+        utime.sleep_ms(500)
+
+    i += 1
+
+    if control_button.value():
+        exit_counter += 1
+    else:
+        exit_counter = 0
+    if exit_counter >= exit_threshold:
+        print("Entering glide mode...")
+        break
+
+while True:
+    led.toggle()
+    utime.sleep_ms(1000)

peripheral/test_led.py

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+import utime
+from picozero import pico_led
+
+while True:
+    pico_led.toggle()
+    utime.sleep(1)