Basic xdot code to check how many memory is available for user APP after initializing libxdot lorawan stack

Revision:
30:2f5ae37e6c47
Parent:
25:56f7775c702f
Child:
33:15ea8f985c54
diff -r 9e2c0d990ace -r 2f5ae37e6c47 examples/src/peer_to_peer_example.cpp
--- a/examples/src/peer_to_peer_example.cpp	Fri Apr 20 14:42:46 2018 -0500
+++ b/examples/src/peer_to_peer_example.cpp	Mon Apr 30 14:46:28 2018 -0500
@@ -28,6 +28,13 @@
 
 Serial pc(USBTX, USBRX);
 
+#if defined(TARGET_XDOT_L151CC)
+I2C i2c(I2C_SDA, I2C_SCL);
+ISL29011 lux(i2c);
+#else
+AnalogIn lux(XBEE_AD0);
+#endif
+
 int main() {
     // Custom event handler for automatically displaying RX data
     RadioEvent events;
@@ -38,6 +45,10 @@
 
     pc.baud(115200);
 
+#if defined(TARGET_XDOT_L151CC)
+    i2c.frequency(400000);
+#endif
+
     mts::MTSLog::setLogLevel(mts::MTSLog::TRACE_LEVEL);
     
 #if CHANNEL_PLAN == CP_US915
@@ -147,8 +158,8 @@
     // display configuration
     display_config();
 
-    uint8_t counter = 0;
     while (true) {
+        uint16_t light;
         std::vector<uint8_t> tx_data;
 
         // join network if not joined
@@ -156,10 +167,30 @@
             join_network();
         }
 
-        tx_data.push_back(++counter);
-        logInfo("sending uplink with data = %d", counter);
+#if defined(TARGET_XDOT_L151CC)
+        // configure the ISL29011 sensor on the xDot-DK for continuous ambient light sampling, 16 bit conversion, and maximum range
+        lux.setMode(ISL29011::ALS_CONT);
+        lux.setResolution(ISL29011::ADC_16BIT);
+        lux.setRange(ISL29011::RNG_64000);
+
+        // get the latest light sample and send it to the gateway
+        light = lux.getData();
+        tx_data.push_back((light >> 8) & 0xFF);
+        tx_data.push_back(light & 0xFF);
+        logInfo("light: %lu [0x%04X]", light, light);
         send_data(tx_data);
 
+        // put the LSL29011 ambient light sensor into a low power state
+        lux.setMode(ISL29011::PWR_DOWN);
+#else 
+        // get some dummy data and send it to the gateway
+        light = lux.read_u16();
+        tx_data.push_back((light >> 8) & 0xFF);
+        tx_data.push_back(light & 0xFF);
+        logInfo("light: %lu [0x%04X]", light, light);
+        send_data(tx_data);
+#endif
+
         // the Dot can't sleep in PEER_TO_PEER mode
         // it must be waiting for data from the other Dot
         // send data every 5 seconds