add read mode

api.py

@@ -5,42 +5,48 @@ from headwind import Headwind as Headwind
 app = Flask(__name__)
 app.config.from_prefixed_env()
 
-@app.route("/on")
+@app.route("/on", methods=["POST"])
 async def on():
     fan = Headwind(app, app.config["ADDRESS"])
-    fan_status = await fan.on()
+    fan_status = await fan.writeOn()
     if not fan_status:
-        return "<p>Failed to turn headwind on</p>", 503
-    return "<p>Turning headwind on</p>", 200
+        return "Failed to turn headwind on", 503
+    return "Turning headwind on", 200
 
-@app.route("/sleep")
+@app.route("/sleep", methods=["POST"])
 async def sleep():
     fan = Headwind(app, app.config["ADDRESS"])
-    fan_status = await fan.sleep()
+    fan_status = await fan.writeSleep()
     if not fan_status:
-        return "<p>Failed to put headwind to sleep</p>", 503
-    return "<p>Putting headwind to sleep</p>", 200
+        return "Failed to put headwind to sleep", 503
+    return "Putting headwind to sleep", 200
 
-@app.route("/speed/<int:speed>")
+@app.route("/speed/<int:speed>", methods=["POST"])
 async def speed(speed):
     fan = Headwind(app, app.config["ADDRESS"])
-    fan_status = await fan.manualSpeed(speed)
+    fan_status = await fan.writeSpeed(speed)
     if not fan_status:
-        return f"<p>Failed to set headwind speed to {speed}</p>", 503
-    return f"<p>Setting headwind speed to {speed}</p>", 200
+        return f"Failed to set headwind speed to {speed}", 503
+    return f"Setting headwind speed to {speed}", 200
 
-@app.route("/hr")
-async def hr():
+@app.route("/speed", methods=["GET"])
+async def getSpeed():
     fan = Headwind(app, app.config["ADDRESS"])
-    fan_status = await fan.hr()
-    if not fan_status:
-        return "<p>Failed to set headwind to HR mode</p>", 503
-    return "<p>Setting headwind to HR mode</p>", 200
+    speed = await fan.readSpeed()
+    return f"{speed}", 200
 
-@app.route("/off")
-async def off():
+@app.route("/hr", methods=["POST"])
+async def writeHr():
+    fan = Headwind(app, app.config["ADDRESS"])
+    fan_status = await fan.writeHr()
+    if not fan_status:
+        return "Failed to set headwind to HR mode", 503
+    return "Setting headwind to HR mode", 200
+
+@app.route("/off", methods=["POST"])
+async def writeOff():
     fan = Headwind(app, app.config["ADDRESS"])
     fan_status = await fan.off()
     if not fan_status:
-        return "<p>Failed to turn headwind off</p>", 503
-    return "<p>Turning headwind off</p>", 200
+        return "Failed to turn headwind off", 503
+    return "Turning headwind off", 200

headwind/__init__.py

@@ -11,6 +11,8 @@ MIN_SPEED = [0x2, 0x1]
 HALF_SPEED = [0x2, 0x32]
 FULL_SPEED = [0x2, 0x64]
 CHARACTERISTIC = "a026e038-0a7d-4ab3-97fa-f1500f9feb8b"
+# > read the above characteristic 0xFD-01-XX-04 where XX is speed 
+# > bytearray(b'\xfd\x01\x00\x01')
 
 class Headwind:
     fanClient = None
@@ -19,7 +21,23 @@ class Headwind:
         self.flaskApp = flaskApp
         self.fanClient = BleakClient(address)
 
-    async def sleep(self):
+    async def readSpeed(self):
+        try:
+            async with self.fanClient as client:
+                result = await client.read_gatt_char(CHARACTERISTIC)
+                return result[2]
+        except Exception:
+            return 0
+
+    async def readMode(self):
+        try:
+            async with self.fanClient as client:
+                result = await client.read_gatt_char(CHARACTERISTIC)
+                return result[3] # Return state code
+        except Exception:
+            return 0
+
+    async def writeSleep(self):
         try:
             async with self.fanClient as client:
                 await client.write_gatt_char(CHARACTERISTIC, SLEEP)
@@ -27,7 +45,7 @@ class Headwind:
         except Exception as e:
             return False
     
-    async def on(self):
+    async def writeOn(self):
         try:
             async with self.fanClient as client:
                 await client.write_gatt_char(CHARACTERISTIC, ON)
@@ -35,7 +53,7 @@ class Headwind:
         except Exception as e:
             return False
 
-    async def speedMode(self):
+    async def writeSpeedMode(self):
         try:
             async with self.fanClient as client:
                 await client.write_gatt_char(CHARACTERISTIC, SPD)
@@ -43,7 +61,7 @@ class Headwind:
         except Exception as e:
             return False
 
-    async def hrMode(self):
+    async def writeHrMode(self):
         try:
             async with self.fanClient as client:
                 await client.write_gatt_char(CHARACTERISTIC, HR)
@@ -51,7 +69,7 @@ class Headwind:
         except Exception as e:
             return False
 
-    async def manualSpeed(self, speed):
+    async def writeSpeed(self, speed):
         if speed > 0:
             value = [0x2, speed]
             try:
@@ -63,7 +81,7 @@ class Headwind:
         else:
             return False
 
-    async def off(self):
+    async def writeOff(self):
         try:
             async with self.fanClient as client:
                 await client.write_gatt_char(CHARACTERISTIC, OFF)

headwind/spec.py

@@ -16,3 +16,15 @@ service001e_char001f = "a026e038-0a7d-4ab3-97fa-f1500f9feb8b"           # Vendor
 service001e_char001f_desc0021 = "00002902-0000-1000-8000-00805f9b34fb"  # Client Characteristic Configuration
 handle = 0x0000
 address = 'F2:B3:F7:6A:24:48'
+
+# bytearray(b'\xfd\x01\x19\x04')
+# 127.0.0.1 - - [10/Nov/2023 15:56:50] "GET /get/speed HTTP/1.1" 200 -
+# 127.0.0.1 - - [10/Nov/2023 15:57:14] "GET /speed/32 HTTP/1.1" 200 -
+# bytearray(b'\xfd\x01 \x04')
+# 127.0.0.1 - - [10/Nov/2023 15:57:23] "GET /get/speed HTTP/1.1" 200 -
+# 127.0.0.1 - - [10/Nov/2023 15:58:01] "GET /speed/50 HTTP/1.1" 200 -
+# bytearray(b'\xfd\x012\x04')
+# 127.0.0.1 - - [10/Nov/2023 15:58:14] "GET /get/speed HTTP/1.1" 200 -
+# 127.0.0.1 - - [10/Nov/2023 15:58:37] "GET /speed/100 HTTP/1.1" 200 -
+# bytearray(b'\xfd\x01d\x04')
+# 127.0.0.1 - - [10/Nov/2023 15:58:45] "GET /get/speed HTTP/1.1" 200 -