Send Mpu Value by characteristic

RE: Send Mpu Value by characteristic

awneil — Fri, 06 Sep 2019 11:25:42 GMT

RE: Send Mpu Value by characteristic

Geass77 — Fri, 06 Sep 2019 07:23:09 GMT

Thank you for the answer

RE: Send Mpu Value by characteristic

awneil — Mon, 02 Sep 2019 11:06:38 GMT

Note that "special measures" are needed to use %f ...

https://devzone.nordicsemi.com/f/nordic-q-a/50243/pca10056-and-float/200512#200512

Another reason to let the app do it!

😃

RE: Send Mpu Value by characteristic

bjorn-spockeli — Mon, 02 Sep 2019 11:00:58 GMT

As awneil states if you send text then nRF Connect will display that text. The way to do it is to use sprintf to copy the string with the value you want to display in decimal, i.e.

uint8_t data[20];
sprintf((char *)data, "Accel X: %f", acc_x);

Then pass the pointer to the data to the SD API for writting/notifying the value.

Best regards

Bjørn

RE: Send Mpu Value by characteristic

awneil — Mon, 02 Sep 2019 10:51:28 GMT

When you say "decimal" do you really mean as a human-readable text ?

nRFConnect (on Android at least) certainly will display as text if you send it text ...

In general, it's better to send binary data - because that it more compact.

You then let the Application format that in a suitable way to present it to users ...

Remember that nRFConnect is just a development/test tool - it is not intended for end users!