Hi guys,
In the iot sdk in mqtt.h there are typdefs for "mqtt_topic_t " and "mqtt_subscription_list_t".
I'm trying to set several topics (5) and subscribe to them.
...
Hi,
I am using nrf5832 that is running a coap server example.
I have modified it a little so it reads sensor data via i2c and returns the data using the coap callback.
...
Hi,
I would like to receive some suggestion about finding a CHEAP smartwatch / wristband already available that has these minimal features: BLE (with SDK / GATT profiles...
Compiled with Keil4 software compilation and C of the mixed program, the error is:Branch offset 0x00000228 out of range of 16-bit Thumb branch, but offset encodable in 32...
Hi,
I am currently working on a prototype with Silicon Labs Thunderboard sense. I am looking for a replacement product that has NRF BLE module. All I need is a BLE module...
I would like to hide BLE advertising from normal BLE devices.
And only be able to see such advertising with dedicated scanner.
I was thinking of changing access address...
Im making a project were i have two robots each one with a device connected with a mobile phone. But at same time i want that, when they are near each other they exchange...
Hi, I'm using nrf51 without ble.
I want to update flash but not want to delete PAGE every time.
NRF_NVMC->ERASEPAGE = (uint32_t) page_address;
How can i do?
We use IOS DFU toolbox to upgrade firmware with BLE device. we can upgrade successfully with Android, but always failed with IOS.
wrong code is: DFUErrorReadingVersionFailed...
Hi, it's probably a very dumb question, but i don't seem to find any details about it. In nrf52 SDK documentation, in Error Module section it says
The behavior of the...
Hi friends...!
I want to put dynamically changing MPU data into the advertising packet. I am putting my accelerometer data into manufacturer specific data field of ble_advdata_t...
How robust is the output PA of the nrf905?
Assume the ouput matching network and 50Ohm connector is used as in the 868Mhz application note.
If the antenna is removed...
Hi,
I'm trying to find a way to speedup the upload procedure of an application, via BLE on a Arduino Primo with the DFU service.
Here you can find my code:
https://github...
Hi,
I am using ble_app_uart sample code for testing. In that I want to store the incoming data into to three buffers and simultaneously sending this over BLE. i.e., consider...
hi i m using nrf52832 for detection acceleration , angular speed and detection of magetic field with GY-87 ( MPU 6050 and Hmc5883). in fact i wrote a program that read only...
Hi,
I am using s130v2 and running the example code from: nRF5_SDK_12.3.0_d7731ad\examples\ble_peripheral\ble_app_hrs\pca10028\s130\arm4
This is the only modification I...
Hi,
I know this is a Bluetooth 5 spec question, but wanted to know the practical figures for current consumption when nrf52840 is used as both central and peripheral...
Hi,
We are expecting many of our devices to be in close proximity. How can we be certain that when a user initiates a buttonless DFU, that they are uploading to the correct...
Hi,
I thought central is the one which fills up its look up table with 16 bit IDs to keep track of the peripherals. If multiple devices can act as central at the same time...
I am trying to re-base my SDK package, and when I started off with the ble_app_template project for the pca10040 s132, I copied my main file on top, everything compiles just...
I am developing an application which involves control of a brushed DC motor with a quadrature encoder. According to this post, in SDK 12.2.0 - which I am using - it is possible...
