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I am currently working on a project and I would like to add some security to my device by preventing services from being discovered. Ideally when a user connects to the device they should only see a Password service ... (more)
Hi, I bought the nrf51822-beacon kit and nrf51-dk including TC2030-CTX-NL connector for connecting them each other through the Debug out pin on the nRF51-DK.
I can't find right source code and don't right compile way using the Keil-uV ... (more)
I started with an empty ble_template and added my own custom service emulating the batterey service, with all the same functions etc. Using master emulator i can see the characteristic increasing and decreasing just like the batterey service ... (more)
Hi, I'm using a simple timer with interval set using "APP_TIMER_TICKS(1.4, APP_TIMER_PRESCALER)" alongside softdevice. Now i'm trying to get it to go faster but it would advertise for at most 3 seconds and then the system ... (more)
Is there a sample program for beacon listener for nrf51 DK.
While I am waiting for my hardware I wanted to test the control panel with my Xiaomi Mi Band.
But I only get a single horizontal line in the RSSI Graph..
As I read this: Known problems: - Nexus 4 and ... (more)
I'm using nRF51822 SoC and I have a LIS3DSH accelerometer connected to the ship via SPI bus . I used the SPI master example . So i used the switch_state() function then took the rx_data and tx_data . But when debugging the ... (more)
No text. It's a really short question.
I just wanted to try out the DFU on the Android app to see if I can successfully update the application on the beacon. For that, I only uploaded the precompiled nrf51822_beacon_app.hex as an application and did not ... (more)
When i google for power consumption 433mhz 2,4ghz and similar most results tell me that 433MHz consumes less power... but when I look at specifications of explicit chips/modules I can't seem to find a 433MHz module that ... (more)
We are using Gazell to stream data at <=6mS intervals for very low latency wireless gaming peripherals. We'd like to have many of these peripherals devices (more than 24) located in the same proximate area, each talking back to ... (more)
Hello, I've just purchased an nRF51 DK and installed the SDK. I have Keil uVision 5 installed from a previous project, with a "Freescale Only" license key. This seems to be keeping me from compiling for Nordic; I get ... (more)
power_manage function is required always? Or its required if i want to go in the low power Mode?
Can i comment out power_manage during development stage?
Just have a look at this beautiful drawing. (Red: what has to be done. Black: Can it be done this way?)
I only have some rudimental experiences in microcontroller programming and none with bluetooth stuff.
For a part ... (more)
I want firmware revision to be added in advertisement packet how can i do it . is it ok to add it to manufacturer data or it is nordic proprietary .
i have done it like this. to add firmware ... (more)
I know I have seen the topic on the forum, but can not find it. What changes need to be done to a example project designed for a softdevice 110 to convert it to a softdevice 310?
Thank You, Glenn
currently I am using the S110 Softdevice with the ble_template example as peripheral. This works fine.
For our final application, we need the central feature with up to 8 connected peripherals. Therfor I want to use the S120 softdevice ... (more)
1 sensor per nRF51288.
Sensor supports either 400kHz I2C (10k pull up recommended) or SPI (2MHz typ, Max 20 MHz)
In the nRF51288 Product Specification the
Run current for SPI master at 4 Mbps. 200 μA
Run current for TWI ... (more)
any plans to release firmware package for nrf51822 smart beacon using Soft device 8 and SDK 8? Thinking I better ask before I start adapting it on my own.
I've spent 4 days now (!!) on getting a "Hello World" project to work in eclipse with GCC. I guess something around the startup-code is setup wrong in my very simple project but I don't know what ... (more)
I would like to know if it is possible to log realtime sensor data to flash while advertising. I would like to have a device which transmits real time ECG data over ble UART to an android device when in ... (more)
Hello I have a nrf51822 mbed kit PCA 10024 V1.0.0. When I connect the kit to the PC (Windows 7 64 bits) the Mkit enumerates as an MSD named MBED:
I updated the firmware to version 2018following the ... (more)
This is factor 2 to what I read here. How can they achieve this? Where is the trick? http://www.dialog-semiconductor.com/p...
Here Hung Bui (@hungbui) gave the good answer how to use bootloader with new S120 v.2.0.
I'm sorry, but can anybody check is I have a right settings on the Keil uVision options->target? Please note that ... (more)
Hello, I'm using nRF51822-mKIT for a research.
To verify ADC readings from analog input, I've connected P0_5 to GND and ran the following code:
uint16_t adc_result; NRF_ADC->INTENSET = (ADC_INTENSET_END_Disabled << ADC_INTENSET_END_Pos); /*!< Interrupt enabled. */ // config ADC NRF_ADC->CONFIG = (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos ...
I was just wondering what the sequence of events would be in the following scenario:
A S110 peripheral device (GATT server) has a characteristic with write access and notifications enabled (by the GATT client). The GATT client performs a ... (more)
I have looked over the entire site and can not figure out what is needed to change the Smart Beacon Kit firmware and uploaded it to the beacon.
Is there a way to recompile the source firmware (what tools do ... (more)
For my project I would like to use this bluetooth module: http://freqchina.en.alibaba.com/produ...
Does it resist 4 bar pressure? Does it resist circular motion > 100 rounds/second (radius 7cm)? (And how does that may effect the bluetooth signal..?)
I am trying to connect to a peripheral through s120 central and vendor has a 128 bit fixed UUID
I am trying to add it on central using sd_ble_uuid_vs_add(...,...) but it is not working and everytime I am getting charachtreristics ... (more)
For my project I wrote and tested (w/ nRF51 DK) all firmware in mbed. I also made a custom PCB w/ the nRF51822 CEAA chip based on the 4 layer reference design provided by Nordic.
The problem comes when ... (more)