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I am adding BLE functionality to one of my existing product. I product will play the central role for which I am thinking to use nRF51822 based module.
I learned that central can be developed using softdevice S120. My ... (more)
I have one central(SDK 10.0 S130) and one peripheral(SDK 8.0 S110) device. Normally central device can connect peripheral device it's ok but the peripheral device will stay in metal case. I did some tests and ... (more)
I want to create a whitelist on the Central device. Because there is a lot of peripheral devices around and I just want to connect one peripheral device. First I register the address of the central device to the peripheral ... (more)
Hi, I have a need to connect to a peripheral device from and nRF52 with a Bonded connection.
My device handles bonding when it is a peripheral, but what is needed to enable bonding in Central mode? Is there some ... (more)
Hi, i'm currently using two NRF52 (1 central and 1 peripheral) using the ble_app_blinky and the ble_app_multilink_central.
I would now like to connect my Android phone with the Central in ordrer to control several NRF devices.
How can I ... (more)
I am trying to get a NRF HRS central (ble_app_hrs_c) to make a connection to a NRF HRS peripheral (ble_app_hrs). However, the peripheral does not show up whenever the central scans for HRS device(s). Meanwhile, the HRS peripheral appears ... (more)
Hi, i'm working a BLE gateway with NRF52DK and S132 by using the demo example central uart.
The peripheral equipement advertise manufacturer data like this: 0x0001 during 5sec then 0x0002 during 5 sec and stop advertise.
But I want ... (more)
Can the central device (
ble_app_hrs_c for example) scan for and connect to a custom peripheral device (not nRF based)?
I am using SDK 13.0 and tried to burn in fresh example code (Experimental NFC BLE Central Pairing Reference) to either PCA10040 and PCA10056. However both always shows :ERROR:Fatal in debug terminal. Did I miss out something ... (more)
I adapted the ble_app_multilink example to continuously scanning for ibeacons and collecting rssi data.
Data are then sent via UART to a microcontroller which provides Bluetooth connectivity in order to read data on an iOS device.
I am using ... (more)
I have 2 boards NRF51:
One as beacon (SDK 9), use example code "nRF51_SDK_9.0.0\examples\ble_peripheral\ble_app_beacon".
The other as central (SDK10, softdevice s130), use example code "nRF5_SDK_10.0.0\examples\ble_central\ble_app_uart_c" to read beacons ...
We're using the SDK 12.1
ble_app_uart_c as an example for a nRF52 DK as Central application. Instead of using
ble_app_uart example for peripheral device, we created a new custom service based on
ble_app_template example for our peripheral ... (more)
I download the example of multilink central (S130) into nrf51822 .The central transmit 20 bytes to peripheral interval 50ms sometimes will reset.Anybody know the bluetooth to send and receive the largest interval?
I keep having problems like frequent disconnects (reason 0x08 = BLE_HCI_CONNECTION_TIMEOUT) and NRF_FAULT_ID_SD_ASSERT on my NRF52832 (tested with S132 v3.1.0 and V5.0.0-alpha1) with the central scanner enabled, that vanish when switching the slave latency on the peripherial ... (more)
I want my nrf51422 dk acting as peripheral should able to connect multiple mobile phones near to it. How I can achieve this?
hi, i was looking for example of two nrf52 communication. One is central of course and other one is peripheral. But i have following doubts. 1. If one is central then how peripheral device will connect to central? Are we ... (more)
I need to have a Central device physically connected (via UART) to a sensor. Data is collected from the sensor and sent to a number of Peripheral devices which use the data to perform a task.
So far I have ... (more)
I'm aware of GATT's Profile, Service and Characteristic. And also, for GATT_Server, GATT_Client it can be Central or Peripheral. (As I manually set it.)
And also, the Bluetooth Communication Sequence goes like this.
I'm having a problem at the moment with code based on Espruino on nrf52.
I connect as follows:
ble_gap_scan_params_t m_scan_param; memset(&m_scan_param, 0, sizeof(m_scan_param)); m_scan_param.active = 1; // Active scanning set. m_scan_param.interval = MSEC_TO_UNITS(100, UNIT_0_625_MS); // Scan interval ...
We are using NRF52 and SDK 11 and S132.
The nrf52 acts as a central and selectively connects to the closest phones (ios) that are acting as a pheripheral. For this purpose we have 4 characteristics (TX, RX, RSSI ... (more)
At the moment I am working on a project that uses the nRF52328 acting as both a peripheral and central to connect 3 separate devices intermittently. I am storing their bonding information. A current problem I have now is that ... (more)
Hi, I'm using a nRF51822 as a observer/scanner for Eddystone beacons. This device is intended to scan up to 16 beacons, but under certain conditions (unknown at this moment) the scanner becomes unresponsive and keeps "broadcasting" one of ... (more)
Hi, I'm trying to modify one of the examples (the hrs_relay) to find my custom service to identify the device uniquely. I know I need to add the 128bit uuid using and then use that handle, but am getting ... (more)
I am attempting to run the examples of BLE HRS C and BLE HRS Peripherals from the SDK. Getting to the connected state works (discovery and notifications as well) just fine. But the two seem to always disconnect after ... (more)
I have an nrf51822AC chip connected to another ARM based processor which provides a CAN interface. The two are connected via the UART and we are using the ble_connectivity software in connection with the S120 softdevice on the nrf51.
So ... (more)
Hi, I want to get the RSSI for each peripheral that is connected to an nRF52 when it is operating as a multi-link central to multiple peripherals. Helpful hints? Sample code?
I am using a custom board with a nrf51422, SDK11, S130 v2.0.1 with central role.
I have made changes on the code to change from MID bandwidth to High. I added the following code to the
ble_stack_init ... (more)
Just a beginners question. I've read about central, peripheral, client, server, but i am still not sure how to choose. I use nrf51822
I want to create a beacon that has two buttons called "1" and "2". If somebody ... (more)
I am using the example ble central devices from the SDK 8.1. The example provided prints out to pin 19 (the on-board LED). I wanted to change the functionality to print to an external LED that was attached to ... (more)
Hello dear Nordic team,
we want to implement a white list to our central device in the production process. Bonding while producing is not an option for us.
Therefore we have an idea and I would like to know if ... (more)