Yup, for example, when 3:00  startTimer and after 30 seconds I stopTimer, the difference is 30s, and what i want to know is how to get this 30 seconds using metawear board. thanks Eric 

siddrajput,If you take a look at the low level Java code for the vibration motor API call, you can reverse engineer the Bluetooth packet (down to the byte) you need to send to the MetaWear board.

Hi Eric:

1. What data can I retrieve in processData() from LogEntry for Activity ? 

Lets first roughly estimate the time resolution you need to distinguish 1cm differences at 3m.  The equations above work well for an estimate.

"Are you by chance periodically scheduling readRssi (or readBatteryLevel) function calls?"

>  you can use BytesInterpreter.byteToOrientation to convert the byte values to an orientation enum

Unfortunately we haven't played much with Swift, so I can't comment on the differences you are seeing with regards to compiler errors.  However, what you have looks correct.

In the project I'm currently working on I need multiple metawears connected to one iOS device, I'm using the latest Xcode 6.2 and iOS 8.2. Multiple metawears connect without problems but when I subsc…

jmacgill,Battery failures are about 1 in a million and there is no way to avoid them. Because it is a chemical system it is bound to fail occasionally; especially when rough-handled or exposed to ext…

asobol22,You program the MetaWear board with an App. You can send the board permanent or temporary commands. This means you do not need to write a single line of firmware code and you probably don't …

bdemers,I don't think you are doing anything wrong at all. It could be that you need to sniff the Beacon in the reverse byte order of the UUID you used.

gerardsgs,Are the LEDs the only thing not working? Can you still connect and use the accelerometer for example? Please let us know when you troubleshoot with the MetaWear App.

jmacgill,That is a battery failure, please dispose of it appropriately; this is extremely dangerous! A battery that is "fat and squishy" has permanently failed and can catch fire at any tim…

kandalf12,You should check out the Github Wiki for the Android API, it will have example code snippets.

gerardsgs,Also try searching for the beacon UUID in reverse byte order.

I'm sorry, but I just don't see it working. The rule of thumb is that you should unregister all broadcast receivers(and I don't see how LocalBroadcastManager is different in this regard) when Activit…

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