tryna get bluetooth to work

relay/bluetooth_handler.py

@@ -0,0 +1,55 @@
+import bluetooth
+from micropython import const
+
+
+# i just made a UUID up and changed the last number to change what protocol you're using
+SERVICE_UUID = bluetooth.UUID("E1898FF7-5063-4441-a6eb-526073B00001")
+TX_UUID = bluetooth.UUID("E1898FF7-5063-4441-a6eb-526073B00002")
+RX_UUID = bluetooth.UUID("E1898FF7-5063-4441-a6eb-526073B00003")
+
+TX_CHAR = (TX_UUID, bluetooth.FLAG_NOTIFY)
+RX_CHAR = (RX_UUID, bluetooth.FLAG_WRITE)
+
+SERVICE = (SERVICE_UUID, (TX_CHAR, RX_CHAR))
+
+IRQ_CONNECT = const(1)
+IRQ_DISCONNECT = const(2)
+IRQ_GATTS_WRITE = const(3)
+
+
+class BluetoothHandler:
+    def __init__(self):
+        print("initting bluetooth")
+        self.ble = bluetooth.BLE()
+        self.ble.active(True)
+        self.ble.irq(self.irq)
+        
+        ((self.tx_handle, self.rx_handle),) = self.ble.gatts_register_services((SERVICE,))
+        
+        self.connections = set()
+        
+        self.advertise()
+        
+    def advertise(self):
+        print("advertising")
+        # note: \x02\x01\x06\x0C\x09 is the BLE header that tells other devices we're BLE only and discoverable
+        self.ble.gap_advertise(100_000, b"\x02\x01\x06\x0C\x09MeshConnectorNode")
+        
+    def irq(self, event, data):
+        print(f"IRQ | EVENT: {event}, DATA: {data}")
+        if event == IRQ_CONNECT:
+            conn_handle, _, _ = data
+            self.connections.add(conn_handle)
+        elif event == IRQ_DISCONNECT:
+            conn_handle, _, _ = data
+            self.connections.remove(conn_handle)
+            self.advertise()
+        elif event == IRQ_GATTS_WRITE:
+            conn_handle, value_handle = data
+            
+            if value_handle == self.tx_handle:
+                msg = self.ble.gatts_read(self.tx_handle)
+                
+                if msg == b"ping":
+                    for conn in self.connections:
+                        self.ble.gatts_notify(conn, self.rx_handle, b"pong")