fixes

2026-07-31 23:46:37 -07:00
parent 9eaf3ce1c4
commit d96435b7c4
14 changed files with 321 additions and 6 deletions
@@ -0,0 +1,75 @@
+"""MicroMesh example for the Seeed Studio XIAO RP2040.
+
+Wiring (cross TX and RX):
+  XIAO D6 / GPIO0 / TX  -> Meshtastic radio RX
+  XIAO D7 / GPIO1 / RX  <- Meshtastic radio TX
+  XIAO GND              --- Meshtastic radio GND
+"""
+
+from machine import Pin, UART
+from time import sleep_ms, ticks_diff, ticks_ms
+
+from micromesh import PortNum, SerialInterface
+
+
+def on_packet(packet):
+    if packet.WhichOneof("payload_variant") != "decoded":
+        return
+    if packet.decoded.portnum == PortNum.TEXT_MESSAGE_APP:
+        try:
+            text = packet.decoded.payload.decode("utf-8")
+        except UnicodeError:
+            text = repr(packet.decoded.payload)
+        print("from !%08x: %s" % (packet.from_, text))
+
+
+def on_receive(message):
+    variant = message.WhichOneof("payload_variant")
+    print("radio message:", variant or "unknown")
+
+
+def on_error(error, payload):
+    print("skipping undecodable radio frame:", error)
+    print("frame bytes:", payload.hex())
+
+
+print("MicroMesh starting on XIAO RP2040")
+print("UART0: D6/GPIO0 TX -> radio RX")
+print("UART0: D7/GPIO1 RX <- radio TX")
+print("UART0: 115200 baud; common GND required")
+
+uart = UART(
+    0,
+    baudrate=115200,
+    tx=Pin(0),  # XIAO D6
+    rx=Pin(1),  # XIAO D7
+    timeout=0,
+    rxbuf=1024,
+)
+
+mesh = SerialInterface(
+    uart,
+    on_receive=on_receive,
+    on_packet=on_packet,
+    on_log=lambda line: print("radio log:", line),
+    on_error=on_error,
+)
+mesh.connect()
+print("configuration requested; id=%08x" % mesh.config_id)
+
+hello_sent = False
+last_status = ticks_ms()
+while True:
+    mesh.poll()
+    if mesh.config_complete and not hello_sent:
+        print("radio configuration complete; sending greeting")
+        mesh.sendText("hello from XIAO RP2040")
+        hello_sent = True
+    now = ticks_ms()
+    if ticks_diff(now, last_status) >= 5000:
+        if mesh.config_complete:
+            print("connected; %d nodes known" % len(mesh.nodes))
+        else:
+            print("waiting for radio data; check TX/RX, GND, baud, and PROTO mode")
+        last_status = now
+    sleep_ms(10)