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I have a BLE device that listens for a connection - upon opening a connection with a smartphone and switching advertising status to non-connectible - it receives some data, reads the battery, and writes to flash storage - the phone disconnects and depending ... (more)
I'm using an NRF8001 with an ATMEL ATMEGA 328P (the microcontroller from an Arduino). I need the microcontroller to go to sleep, but still allow the BLE chip to advertise and wake the microcontroller upon connection. It seems as ... (more)
I'm using a RF module with nRF24L01+. Sometimes the RF stop working, the module keep replying status of no rx data (all pipes). The device is embedded into a device used along with valves and motors. I guess ...
I use nRF51 DK and soft device s130.
I nedd to add a file ("app_uart_fifo.c") in the example of multilink central, after i add the file i build the proyect but the files .h never being created. I have ... (more)
I'm working on a project where I need to recognize whether or not a wireless tag is within 5-10' of a stationary reader. I would develop the reader system using a module, and the tag (hopefully) would be off ... (more)
I'm using the nRF52 + SDK11.0.0 + s132 and the ble_hrs example. The function conn_params_init() is called to initialize the connection parameters that the peripheral will request, but where is the actual call to request the new connection parameter ... (more)
I am using the nRF51822 in an application where I want to run the UART as fast as possible to communicate with a host processor. I have been able to get reliable communication with the host processor up to 115 ... (more)
I'm trying to use
sd_ble_gattc_characteristics_discover to figure out which characteristics are in a service.
On the whole it seems pretty obvious (keep calling
sd_ble_gattc_characteristics_discover and handling the
BLE_GATTC_EVT_CHAR_DISC_RSP event for each characteristic within the range reported for the ... (more)
I'm developing a FW that is now validated. We are "almost ready" to go in mass production (6000 PCE for the first batch).
For the moment, I'm still using the debugger with the NRF51DK. The programmation is ... (more)
I am currently testing the nRF51 series as a possible upgrade to our products that use the 24L01P. For testing I have the nRF51 dev board setup as the PRX and a custom board with an 24L01P as the ... (more)
I`m trying to operate PWM and soft device at the same time. I have to make 4 Mhz using PWM block so I checked the PWM driver. There is no problem when using peripheral/pwmdriver.
However,when I applied ... (more)
There have been some questions on the forum regarding the DFU and it's zero value for the application CRC. However, none of them seem to address this question so I thought I would float it out here and ... (more)
I'm using the nRF52 + SDK11.0.0 + s132. I started with the ble_hrs example and modified it. I now want to make the service/characteristics use proprietary UUIDs and I'm following the ble_app_uart example. I set the uuid ... (more)
I implemented nrf51 flashing through SWD (external MCU is used). After first flashing and reset when we enter debug mode on SWD second time we have a busy state (NVMC_READY (0x4001E000 + 0x400) is set to zero) from NVMC ... (more)
I'm using an nRF52832 with the S132v2 and SDK 11 and wanted to test the ble throughput. The nRF52832 should send as many as it can to an "normal" BLE-USB-Stick.
The strange thing is, that my windows application ... (more)
When designing the layout for my circuit using nRF52832 I've noticed that the values of CL connected to the ANT pin changed from L= 3.9nH and C=0.8pF to L=3.3nH and C=1pF.
The value ... (more)
What is the gain of the antenna in dBi?
I want to use fstorage to write data to a file. The File with three records: 0x1111="Tablet1", 0x2222="data: abcdef", 0x3333="26". How to implement it? Can anyone guide me?
I am trying to send lots of data through radio (basing on old micro esb project from github, but heavily modified). I need to keep radio IDLE (not DISABLED) when not transmitting, because ramp-up time sometimes is too long and ... (more)
Hi - I have been unsuccessful using Master Control Panel 220.127.116.11 on win10 to send a new application to a pca10028 with running initial application that supports DFU. What am I doing wrong?
Here is what I am ... (more)
I am working on a BLE peripheral. I have a large, variable length characteristic I need to set from the central.
When the central is the BTool, I can write up to the maximum size of my characteristic, which is ... (more)
hey I have a nRF51822 eval board and I want to use it as hid keyboard to send some media key such as vol+/- play/pause, etc. I have used the example code ble_hid_keyboard and it works well to send ... (more)
I'm using the SAADC of an nRF52832. I'd like to reduce the error of my measurements from the nominal +/-3%. I'm calling the NRF_SAADC_TASK_CALIBRATEOFFSET periodically to reduce errors, but I do still measure errors that are in ... (more)
Hello, I'm trying to generate DFU keys with the nrfutil.exe tool from Master Control Panel 3.10.0. I always get errors....
C:\Program Files (x86)\Nordic Semiconductor\Master Control Panel\18.104.22.168\nrf>n rfutil ... (more)
I am using Nordic Nur-10W develop kit, trying to compile NurApiExample in Raspberry Pi. I wrote a Makefile, and complie process was OK. However, undefined reference errors show as below:
Here is my Makefile:
I use libNurApiRasPi.so as ... (more)
Is there a way to pause all peripherals when hitting a breakpoint? In particular, I would like to freeze the RTCs when I hit a breakpoint. My app wakes up once a second, and I pause the code for too ... (more)
Hello, I would like to use a custom flash memory layout for the flash memory of nrf52:
I thought that I should be able to use the UICR.NRFFW - if I set to the start address of my application ... (more)
I am Working on a BLE application in which I do not want to expose certain services until I am securely paired/bonded to a valid device. The problem is that during discovery, it seems that all primary services ... (more)
main.chello sir.. i m place rtc example code inside of ble_uart code .. and i m using gcc tool chain setup for pca10028 bord... code complile sucsessfully... code not work .... as per my requirement...main.h(/attachment/b55e54fec95f15b43a441dc5dab261fb)
In the BLE_UART example code posted here, I noticed a discrepancy with the SD 3.0 migration document, SDK12, and the example code.
In stock SDK 12.1.0, ble_stack_handler_types.h has BLE_EVT_BUFFER defined with a size of [(sizeof ... (more)