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...
i am using nrf51822. is it possible blutooth communication without softdevice. if possible, please explain me how. if not why. please help me any one.
thanks in advance...
Hi,
I am running an application in which I set -D__STACK_SIZE=0x4000. After some research, I come to know that RAM is divided into 4 blocks the lower one is for the soft...
Hi
Because the dfu_single_bank.c file is not functional over BLE, I'm trying to modify the dual bank configuration to single bank. The modification should be very simple...
Hi,
I am using nRFToolBox into my smart phone of v4.4.2(kitkat).
I am trying to update my program using OTA through my phone.
But when i am trying to send dfu_test_app_hrm_s130...
Hello,
I programmed about 200 nrf51822 boards for prototype production.
The order was softdevice - bootloader - application.
In the process of test I saw some abnormal...
I'm a bit confused about nomenclature and am looking for guidance in how best to implement the needs of my ble app. From the S110 perspective, how are connecting, bonding...
Hi there!
I'm working with secure_bootloader example (SDK 12.1.0) and trying to use i2c communication on bootloader. I'm using the debug code and checking via LOG (uart...
I have built a application with IAR, and made a hex file with Intel extended. It’s works fine with nRFgo Studio. But I got problems with dfu updating from my android. I hope...
Hi. I would like to convert float32_t to uint8_t array for transmission using the ble_nus_string_send function. Can you guys please suggest the method to convert the same...
Hi
To write the some state of the device, I write two bits into the NVM memory. Thus, we get 16 write cycles to one address without erasing. I did this based on the optimization...
Hi all:
I wrote a code to directly read the register 0x43 (MPU_REG_GYRO_XOUT_H)
But the GYRO data I got is wrong
Chip: nRF51422
Board: PCA10028
Firmware: S130_nRF51_2...
Hi,
I am trying to implement a Single Bank DFU over Bluetooth for my nRF51822 (256KB / 16KB RAM) using SDK v7.1 and Softdevice 110. I am using GCC to compile the bootloader...
Hi all,
I my application I am interfacing SD card with nrf52 using FATFS file system. I am observing some weird behavior while doing this. I have two SD cards, one of 2GB...
