To collect multiple sensor values and transmit it over bluetooth using nrf52840 DK

[sprasad]

Hello!

I'm looking to build an application on nrf52840 DK that collects multiple sensor values and transmits it over Bluetooth. For now, I don't have a bluetooth application of my own so it's enough if I'm able to read those values using nrf connect app. I'm planning to retrieve values from the onboard temperature sensor and two other sensors that are connected using i2c. I have gone through the posts and tutorials but I find that most of them aren't ported to nrf52840 board. Can anyone point me to right example/ tutorial/ blog that can help me achieve this on nrf52840?

[sprasad]

Currently, I'm looking into the ble_app_template. Just the connect and disconnect are working fine with my nrf connect iOS app on phone. From here how do I alter this to display sensor values on my phone? Should I have to begin with adding services?

[karthikeyan]

hi,

  which sdk you are using. and if you want to connect the sensor in i2c(twi). there is an example for twi. from there you can start.

regards

[sprasad]

I'm using SDK_v_14.2. Also, the twi example assumes that we have a sensor shield connected to the development kit. I just have a BNO055 accelerometer breakout board which I want to interface. How do I get started?

[karthikeyan]

hi,

  i have done mpu 6050 interfaced in twi using sdk 14.2 and got success. having that source code if you need i can give u

[sprasad]

That would be great! Can you please share it? Thanks a lot!!