Diff: readme.txt

Revision:

11:8c38e284e9f7

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+Unfortunately:
+	Seem to experience some stability issues. Haven't discovered where they come from.
+
+MeasurementBufferTemplate:
+	Self-overwriting buffer template
+	Uses callback to retrieve sensor values
+	Can be used for acceloremeter as well 
+		(probably best to combine sensor values into a struct, and designate that as T_BufferType)
+		
+ReadIntervals:
+	ReadIntervals is designed to reduce the number of Ticker's in the app to one.
+	Despite their simplicity, they take up a lot of memory.
+	ReadIntervals reuses the same ticker for whatever you need (but is less simple and requires a bit more programming).
+
+IO:
+	Decided to put together all IO things. More accessable and cleaned up Main.cpp.
+
+AppTime:
+	Time since the start of the application. Expected a built-in timer, but couldn't find a working one for SEEED TINY BLE (e.g. time(NULL) == -1, always)
+	
+If you want to use an SD card for additional buffering:
+	Looked around a bit. Many options don't seem to work due to SEEED TINY BLE running on mbed OS 2.
+	Found one solution that seemed promising:
+		https://os.mbed.com/handbook/SDFileSystem
+		http://os.mbed.com/users/mbed_official/code/SDFileSystem/
+		needs: https://os.mbed.com/teams/mbed-official/code/FATFileSystem/pull-request/4
+	The SDFileSystem code needs the fix in the third link. The link says it's merged, but apparently didn't show up in my environment.
+
+Temperature Bulk Service:
+	(from 'client'/'central' point of view):
+		Write characteristic:
+			Data provided: time in seconds since the start of the app
+			Provide a point from which we want to read sensor data. Sensor data is subsequent data.
+		Read characteristic:
+			Read bulk update, see MeasurementBufferTemplate::BulkUpdate for specific format.
+				requestedTime: time provided through Write characteristic
+				initialTime: time of the first sensor reading provided
+				sensorReadingInterval: time inbetween provided sensor readings
+				numberOfReadings: number of initialized readings in 'readings' (starting from readings[0])
+				readings: buffer containing the sensor values that are provided to the user.
+
+				
+'No linker script found':
+	This is about the NRF51822.ld file in <project directory>/mbed/TARGET_SEEED_TINY_BLE/TOOLCHAIN_GCC_ARM
+	I don't recall fully, but you can get it from https://github.com/pieterm/bledemo I think (DON'T update mbed, or you'll get the same problem anyway)
+