Direct node2node traffic

core/MyTransport.cpp

@@ -1,4 +1,4 @@
-/*
+/*
  * The MySensors Arduino library handles the wireless radio link and protocol
  * between your home built sensors/actuators and HA controller of choice.
  * The sensors forms a self healing radio network with optional repeaters. Each
@@ -546,10 +546,18 @@ bool transportRouteMessage(MyMessage &message)
 #endif
 		}
 #else
+		if (destination > GATEWAY_ADDRESS && destination < BROADCAST_ADDRESS) {
+			// node2node traffic: assume node is in vincinity. If transmission fails, hand over to parent
+			if (transportSendWrite(destination, message)) {
+				TRANSPORT_DEBUG(PSTR("TSF:RTE:N2N OK\n"));
+				return true;
+			}
+			TRANSPORT_DEBUG(PSTR("!TSF:RTE:N2N FAIL\n"));
+		}
 		route = _transportConfig.parentNodeId;	// not a repeater, all traffic routed via parent
 #endif
 	}
-	// send message, HAL
+	// send message
 	const bool result = transportSendWrite(route, message);
 #if !defined(MY_GATEWAY_FEATURE)
 	// update counter

core/MyTransport.h

@@ -119,6 +119,8 @@
 * | | TSF | SRT   | OK												| Saving routing table successful
 * |!| TSF | RTE   | FPAR ACTIVE								| Finding parent active, message not sent
 * |!| TSF | RTE   | DST %%d UNKNOWN						| Routing for destination (DST) unknown, send message to parent
+* | | TSF | RTE   | N2N OK										| Node-to-node communication succeeded
+* |!| TSF | RTE   | N2N FAIL									| Node-to-node communication failed, handing over to parent for re-routing
 * | | TSF | RRT   | ROUTE N=%%d,R=%%d					| Routing table, messages to node (N) are routed via node (R)
 * |!| TSF | SND   | TNR												| Transport not ready, message cannot be sent
 * | | TSF | TDI   | TSL												| Set transport to sleep

examples/Node2Node/Node2Node.ino

@@ -0,0 +1,68 @@
+/*
+   The MySensors Arduino library handles the wireless radio link and protocol
+   between your home built sensors/actuators and HA controller of choice.
+   The sensors forms a self healing radio network with optional repeaters. Each
+   repeater and gateway builds a routing tables in EEPROM which keeps track of the
+   network topology allowing messages to be routed to nodes.
+
+   Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
+   Copyright (C) 2013-2018 Sensnology AB
+   Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
+
+   Documentation: http://www.mysensors.org
+   Support Forum: http://forum.mysensors.org
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   version 2 as published by the Free Software Foundation.
+
+*/
+
+#define MY_DEBUG
+#define MY_RADIO_RF24
+#define CHILD_SENSOR_ID 0
+#define ACTUATOR_ID 200
+//#define SIGNING_ENABLED // enable for secure actuator
+
+#if defined(SIGNING_ENABLED)
+// Signing, select soft/hardware signing method
+#define MY_SIGNING_SOFT
+//#define MY_SIGNING_ATSHA204
+#define MY_DEBUG_VERBOSE_SIGNING
+// Enable this if you want destination node to sign all messages sent to this node.
+//#define MY_SIGNING_REQUEST_SIGNATURES
+#endif
+
+// triggering interval
+static const uint32_t trigger_ms = 10000;
+
+#include "MySensors.h"
+MyMessage msgGeneral(CHILD_SENSOR_ID, V_STATUS);
+uint32_t lastTrigger = 0;
+bool actuatorStatus = false;
+
+void presentation(void)
+{
+	sendSketchInfo("Node2Node", __DATE__);
+	present(CHILD_SENSOR_ID, S_BINARY, "Remote");
+}
+
+void setup()
+{
+#if defined(SIGNING_ENABLED)
+	SET_SIGN(ACTUATOR_ID);  // define signing requirements for remote node
+#endif
+}
+
+void loop()
+{
+	if (millis() - lastTrigger > trigger_ms) {
+		lastTrigger = millis();
+		// set destination address
+		msgGeneral.setDestination(ACTUATOR_ID);
+		// send message to node
+		send(msgGeneral.set(actuatorStatus));
+		// invert status
+		actuatorStatus ^= true;
+	}
+}