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...
I follow the example, as below
nRF5_SDK_12.1.0_0d23e2a\examples\peripheral\flashwrite
but I only get some error, can not get anything, and the ble is unconnected.
Hi there. I'm making a sensor system which is intended to measure an ADC value, and send it using the Heart Rate Sensor template. To make this, I've rebuilt the ble_app_hrs...
Hi
Does the newly released nRF52840 chip have pins on the side, corresponding to the "outer ring" (A8-23, AD2-23, B1-W1, ...) pins on the underside of the chip, like this...
hello i am interfacing i2c sensor mma8452 with nrf51 dk. my function is
void mma_read(uint8_t *x, uint8_t *y, uint8_t *z)
{
uint32_t err_code;
uint8_t rx_buffer...
I have to sample 3 differential channels periodically. Should I calibrate SAADC for each channel individually? Unfortunately, "nRF52832 - Product Specification v1.0" doesn...
Update 2016-Mar-29: I used SDK v10 along with SoftDevice S110 v8 when I run the experiments described in this question.
Update 2016-Mar-30: Upload source code of the modified...
In order to perform dfu to softdevice S132 v3 sdk12 (secure bootloader) from sdk11 softdevice S132 v2 (legacy bootloader).I've change the legacy bootloader as it it says here...
by using Arduino mini pro 3.3v
I am planing to measure the temperature for the first five minutes, if the temp is over 40 degrees the device will send to Android app and...
Even though the SIG hasn't finalized yet and the 1.4.0 SoftDevice isn't out... Can we get a heads up on what to expect for 1.3.0 BLE 4.2 compatibility?
On something...
In arm_startup_nrf52.s (in the 8.9.0 device family pack), there is a new bit of code:
IF :DEF: __STARTUP_CONFIG
#include "startup_config.h"
ENDIF
I assume this...
Hi,
I'm thinking of using the NRF52 for an embedded wearable sensor application.
How much flash and Ram space can I expect to have remaining approx. for my application...
