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...
Hi,
I want read accel data from BNO055 sensor to NRF51 DK board, but SCL and SDA pins are 1 always.
My code is the next one:
#include "twi_master.h"
#include "twi_master_config...
I have existing design with I2C accelerometer on P0.1 and P0.2 (SDA/SCL). Don't need extreme data rates. Since examples of initializing on-board TWI don't seem to exist, and...
I am developing a tool that will be using the existing NRF51 dongle to run the S130 SD and it is being written in Python. There is no way to change any of these parameters...
Does anybody have a suggestion for a relatively low cost way to test the output power of a nRF24L01+ module? We make the modules (which are identical to the demo module) in...
Hi,
I am using the GPIOTE->PORT event to detect button presses and I would like to detect both button press and button release.
However, it seems like SENSE can only...
(this is duplicate with a support case I just opened... I hope that's okay.)
Hello, I am setting up a new laptop (our development machine caught a virus) and have installed...
Hi,
I have a sensor which sends data in a not specific time and each time start to sending data sends more that 100 data in 5 seconds
My problem is i just want one data...
Hello,
as described in the Compatibility Matrix it is necessary to use a revison 3 chip to use the S130 SoftDevice? Right?
Please explain why the Revision 2 chips...
I'm working in a project & I want to wake up the system from the sleep mode but it didn't wake up or I don't know what is expected on the wake up, will the system be run from...
Hello
I am using PCA10028 and I have written some customized service after taking help form nAn36 documents. Now I want to combine the predefined standard services like IMMEDIATE...
Now that the infocenter is available, please consider making product anomaly descriptions available at a permanent URL, e.g. infocenter.nordicsemi.com/.../PAN .
The frameworks...
Hi,
Same question in the ARM forum: topic
I am a (French, sorry for my English) software engineer with very little knowledge in hardware. As part of a prototype, I'd...
i have initialized a uart then i changed its rx and tx pins. now i want to initialize two uarts. i found the function to do this. app_uart_init.but i dont know how to pass...
I am trying to add pairing option in IOT examples provided in nrf51_iot_sdk_0.8.0. I don't see device manager interface in this SDK. Are there sample examples I can use to...
Warning[Pa082]: undefined behavior: the order of volatile accesses is undefined in this statement C:\Projects\..\lib\nrf_drv_twi.c 273
21 the same warnings. No errors...
