Hello,
I have an NRF51822 (redbealab ble nano) that I would like to use to count pulses in very low power mode.
Pulses are asynchronous
The rate of pulses can...
Hi
I'm attempting to read a PT-100 sensor value that is part of a voltage divider using a nRF52.
Both the reference resistor and the PT-100 is sampled while the voltage...
Hi
I have been searching the forums, but were not able to find an answer to my question.
I'm trying to sample 4 analog inputs on the nRF51-DK using the ADC hal. (SDK10...
Hi
I have been trying to get two NRF24L01 chips communicate with each other since a week now, without much success. All what I can find on the net is Arduino examples using...
Hi
I have done several projects with the nRF905. I know the device quite well. Normally I use the CD, AM and DR interrupt pins to determine the status of the device, my current...
i made this project to try to create RSC service on arduino
developer.bluetooth.org/.../runningspeedandcadence.zip
unfortunately the server starts but i'm not able to...
Hello,
Could someone give me a hint with the following problem?
I am using two example projects (ble_app_uart_c, ble_app_hrs) to connect a central and a peripheral.
An...
Folks,
Newbie here with mbed, using nRF51-DK, but old hand with nRF51822, S110, SDK, J-Link, Keil MDK, etc. Trying to figure out how the mbed SDK API maps down onto the...
I have 25Q64 SPI flash chip connected to SPI bus. Unfortunately it works too slow even with using IRQ routine via SPI0_TWI0_IRQHandler (everything done like in example spi_master...
I was wondering if its possible to do a "Create new user" function, so the new bonded devices are accepted only if the first connected master tells the peripheral to.
For...
Hello,
I have taken the ble_app_beacon example and added a few things... I am looking to do something very simple like light up an LED on connection. So i added the on_ble_evt...
When is the S130 going from alpha to beta or release?
I understand that what ever answer is subject to change...just hoping to get a "ball park" date/plan.
hello,
I recently purchased a NRF51 dongle and NRF51 DK. I was working with older version of NRF51 development kit. I did n't get any information in the user guide provided...
Hi,
I am using NRF51822 BLE. I wanted to know that when we put this BLE ic in sleep mode then, is there VDD_PA voltage is still 1.6V or it becomes shut off internally.??...
Is it possible to generate useful documentation from the provided .dox file ?
If I run doxygen.exe ble_api.dox I get some Latex and HTML output but looks incomplete because...
What would be the best way to go about sampling and transmitting a signal at 60 Hz? I am considering setting up notifications and a characteristic, but I don't think that...
Mac OS X 10.10 Yosemite rejects the format of the file system and puts it in a read only mode.
This issue was raised last October 24, 2014 at https://github.com/mbedmicro...
Hey guys,
Sorry to a basic question here, but it's been a few hours and I still can't get a connection to either of two brand new nRF51 dev boards, trying both on WindowsXP...
Hi Sir,
I’m working in an application with the demo board A to communicate via Bluetooth to the demo board B and send data between them. In the module I have to do send a...
I have a 51822-DK board. I have followed all of the instructions to set up the environment. Loaded all NRF tools, Keil v 5, install SDK. I began working on the examples. I...
Hello.
I need to hold 64-bit timer value. I store the 32-bit hardware timer value in one variable (low DWORD) and use an additional uint32_t variable as a an upper part of...
