BLE_NUS with DHT11(Temperature and Humidity) issue

[Kashinath]

Hi all,

I am working on Temperature and Humidity(DHT11) with nrf52832, After advertising the Bluetooth  i am calling the DHT11 sensor function in loop, few seconds it is working fine, after sending some data it is not sending data over the BLE_NUS, i am not getting where is the issue, Please suggest me for this.

[Jørgen Holmefjord]

Please post the code you are using for communicating with the DHT11 sensor. Also, please try debugging using this method, to see if any functions return error codes.

[Jørgen Holmefjord]

This is caused by an error from the softdevice. You need to provide your code in order for us to help you debug this. You should also see if you can figure out which function is causing the error.

[Kashinath]

Hi Jorgen,

Thank you for reply,

Actually my main issue is after sending some data it is not sending any data, so tell me how to resolve that issue, i send my main code(2nd one which i have attached), thanks in advance 

[Jørgen Holmefjord]

Have you debugged the second application and figured out where it fails? You should make sure you check every error code, to make sure your application is functioning as expected. From your previous screenshots, it looks like the application is failing because you are trying to send data using ble_nus when there is no connection or notifications not being enabled.

[Kashinath]

Hi Jorgen,

I am checking my application by connecting to Nordic connect app with notification enabled, but still after few data it is not sending data, I am using P0.15 pin for reading data, In nrf52832 development board the same pin is for button 3, so if i press that button again it will start sending data, please suggest me for this issue. (I commented the sleep mode in code)Thanks

[Kashinath]

Hi Jorgen,

I checked in debug mode with notification enable in nordic connect app, it is getting stop in nrf_delay_us, i don't know the issue, after this it is suddenly going to NRF_BREAKPOINT_COND; please suggest me for this issue, Thanks

[Jørgen Holmefjord]

Are you sure that the DHT11 functions you have created is working as intended? You have some while loops inside there that will deadlock your code if the GPIOs are not set to certain values. Note that if you put a breakpoint or halt the CPU in other ways, the softdevice will assert when you continue, and put you in the error handler. Is the code working if you comment out DHT_task_callback() from you main loop?