Simple BLE Radio tester and signal strength (RSSI) meter, using microbit radio lib.

Dependencies:   microbit

Files at this revision

API Documentation at this revision

Comitter:
dl7avf
Date:
Thu Jan 12 11:26:14 2017 +0000
Commit message:
BLE radio tester and signal strength meter, initial.

Changed in this revision

MACROS.txt Show annotated file Show diff for this revision Revisions of this file
config.h Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
microbit.lib Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MACROS.txt	Thu Jan 12 11:26:14 2017 +0000
@@ -0,0 +1,1 @@
+MICROBIT_BLE_ENABLED=0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config.h	Thu Jan 12 11:26:14 2017 +0000
@@ -0,0 +1,22 @@
+// config.h     | 18698.01 ** 2017-01-12
+//-------------------------------------------------------------
+// Radio tester and RSSI meter,
+// checks for BLE radio communication of motiles in the same group.
+
+#ifndef __CONFIG_H__
+#define __CONFIG_H__
+
+#define MICROBIT_BLE_ENABLED 0
+
+#define ksHeader            "Radio tester and RSSI meter (18698.01)"
+#define radioGroupName      "TESTUDINES"
+#define radioGroupNumber    42
+#define radioTimeout        12  // seconds.
+
+// Miscellaneous constants:
+
+#define FALSE   0       
+#define TRUE    1       
+#define kGRAD   0xB0    // ° = 0xF8 too.
+
+#endif  //__CONFIG_H__
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 12 11:26:14 2017 +0000
@@ -0,0 +1,162 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2016 British Broadcasting Corporation.
+This software is provided by Lancaster University by arrangement with the BBC.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+/*
+ * This is a simple example that uses the micro:bit radio to show if another
+ * micro:bit is nearby broadcasting with the same group number.
+ * The display will show the received signal strength in -dBm.
+ *
+ */
+
+#include "config.h"
+#include "MicroBit.h"
+
+#if MICROBIT_BLE_ENABLED 
+ #ifdef YOTTA_CFG
+  #error "This example needs BLE to be disabled. Use the yotta config.json in the proximit-heart directory to do this"
+ #else
+  #error "This example needs BLE to be disabled in the microbit config file in the microbit-dal: MicroBitConfig.h"
+ #endif
+#endif
+
+#ifdef USE_MICROBIT_ELEMENTS
+
+// Used microbit components.
+
+MicroBitDisplay display;
+MicroBitRadio radio;
+MicroBitMessageBus messageBus;
+
+#else
+
+// Complete microbit object.
+
+MicroBit    uBit;
+
+#endif
+ 
+static int display = 0, receiving = 0, direction = 1;
+static uint8_t radioRSSI = 98, radioGroup = radioGroupNumber;
+ManagedString rxdata;
+void onData(MicroBitEvent)
+	{
+    rxdata = uBit.radio.datagram.recv();
+    receiving = 3;
+    radioRSSI = uBit.radio.getRSSI();
+    display = 1;
+    }
+
+void onButtonA(MicroBitEvent)
+	{
+	if ( radioGroup != radioGroupNumber )
+		{
+		radioGroup = radioGroupNumber;
+    	uBit.radio.setGroup(radioGroup);
+		}
+	direction = -direction;
+	display = 2;
+	}
+
+void onButtonAlong(MicroBitEvent)
+	{
+	display = 3;
+	}
+
+void onButtonAhold(MicroBitEvent)
+	{
+	display = 3;
+	}
+
+void onButtonAdouble(MicroBitEvent)
+	{
+	display = 3;
+	}
+
+void onButtonBlong(MicroBitEvent)
+	{
+	display = 4;
+	}
+
+void onButtonB(MicroBitEvent)
+	{
+	radioGroup += direction;
+    uBit.radio.setGroup(radioGroup);
+	display = 2;
+	}
+
+int main()
+	{
+	int sleeping;
+	
+    // Initialise the micro:bit runtime.
+    uBit.init();
+    uBit.radio.setGroup(radioGroupNumber);
+    //Setup a handler to run when data is received.
+    uBit.messageBus.listen(MICROBIT_ID_RADIO, MICROBIT_RADIO_EVT_DATAGRAM, onData);
+    // Setup some button handlers to allow extra control with buttons.
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_BUTTON_EVT_CLICK, onButtonB);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_LONG_CLICK, onButtonAlong);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_BUTTON_EVT_LONG_CLICK, onButtonBlong);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_HOLD, onButtonAhold);
+    uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_DOUBLE_CLICK, onButtonAdouble);
+	uBit.radio.enable();
+ 	
+    while ( true )
+    	{
+		switch ( display )
+			{
+			default:
+			case 0:	// nothing to display?
+			uBit.display.print("?");
+			sleeping = 1000;
+			break;
+
+			case 1:	// display signal strength.
+    		uBit.display.scroll(radioRSSI);
+			sleeping = 500;
+			break;
+
+			case 2:	// display group number.
+    		uBit.display.print("#", 300);
+   			uBit.display.scroll(radioGroup);
+			sleeping = 500;
+			break;
+
+			case 3:	// display received data.
+    		uBit.display.scroll(rxdata);
+			sleeping = 500;
+			break;
+			}
+
+		if ( receiving )
+			{
+			receiving -= 1;
+			display = receiving && display == 1 ? 1 : 0;
+			}
+        uBit.sleep(sleeping);
+ 		}
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/microbit.lib	Thu Jan 12 11:26:14 2017 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/teams/Lancaster-University/code/microbit/#4b89e7e3494f