Forum >How to change the value of a Characteristic?
How to change the value of a Characteristic?
abdo.m7med.89 2016-02-03 19:22:48 3729 Views3 Replies I was trying to build an app that can "READ" the value of Bluno M3 characteristic
whenever i use the function
how can i change it from the code ?
What exactly Serial.write/println functions do to the characteristic ?
so far i can edit the value of the characteristic from the android app that i made. however i want to change the value from the board it self
the charactaristic i`m talking about is the DFRBLU_CHAR_RXTX that has the UUID (0000dfb1-0000-1000-8000-00805f9b34fb)
i`m pretty sure i`m missing something
whenever i use the function
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the value of the characteristic does not change Serial1.println('x');how can i change it from the code ?
What exactly Serial.write/println functions do to the characteristic ?
so far i can edit the value of the characteristic from the android app that i made. however i want to change the value from the board it self
the charactaristic i`m talking about is the DFRBLU_CHAR_RXTX that has the UUID (0000dfb1-0000-1000-8000-00805f9b34fb)
i`m pretty sure i`m missing something
2016-02-04 03:51:36 I see so if i want to change the value stored in this characteristic from the code this is impossible ?
the last firmware for bluno m3 is 1.1 right ? abdo.m7med.89
the last firmware for bluno m3 is 1.1 right ?
abdo.m7med.89 2016-02-03 23:30:16 Hi there, thanks for the post.
It seems that the Bluetooth characteristic is determined on the Bluetooth chip and not changeable unless you flash new firmware to it
DFRBLU_CHAR_RXTX is used to read write strings, from the looks of it
The serial port characteristic with UUID 0000dfb1-0000-1000-8000-00805f9b34fb should be the main channel for communication
Maybe with this information you can make some progress...
Hope this helps. Let me know what happens Maht
It seems that the Bluetooth characteristic is determined on the Bluetooth chip and not changeable unless you flash new firmware to it
DFRBLU_CHAR_RXTX is used to read write strings, from the looks of it
The serial port characteristic with UUID 0000dfb1-0000-1000-8000-00805f9b34fb should be the main channel for communication
Maybe with this information you can make some progress...
Hope this helps. Let me know what happens
Maht 