Hello,
I established a connection between my central and peripheral module. Now i want to write characteristic value on peripheral. I tried with sd_ble_gattc_write function...
I am using the NRF24l01 for my products and looking to buy in bulk(100-1000). Now I know where to buy the just the IC but antenna design is a hard point to break right now...
Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
If BLE device is sleeping,is link layer connection terminated or the link layer connection is still valid..?
if it is valid..how the master will know about the sleeping periods...
Hi all.
Consumption current increases by about 1.5 mA after a battery check.
uint8_t battery_start(void)
{
// Configure ADC
NRF_ADC->INTENSET = ADC_INTENSET_END_Msk;...
Hi all!
My project is depend on the "ble_app_template",which uses the "scheld structure", I am able to read the data from app but not able to send my data with notification...
I have a question about that code, when I test my code with lightblue, it showed me that there is an service called application notification client service, but it didn't...
I'm using GPIOTE library to check the change of two switch inputs.
Normally it works well, but rarely GPIOTE_IRQHandler become never happen even if the pin level changes...
Hi Nordics!
I am using app_pwm.c file in SDK 8.1, and when I use it with softdevice(advertising or data transfer event), sometimes pwm signal is reversed.
I guess, reversed...
Hi Guys,
I am using a the 350Mhz Analog Oscilloscope HM303-6 www.hameg.com/hm303-6.0.html to measure the voltage utilised by the board when it is transmitting data.
...
Hi,
Once I enter into BLE mode I am not able to read any gpios(nrf_gpio_pin_read) also I am not able to set any gpios (nrf_gpio_pin_set).
Below is my example
uint8_t...
I'm trying to establish a bond in my project and then perform service discovery, however the discovery is returning the BUSY error.
I tried to wait for the events according...
In SDK 8.0 the bare word asm was re-introduced in nrf_delay.h , causing failures in compilations that use strict C/C++ standard conformance flags. This was noted in earlier...
Hello Developers
I have to solve a problem for which I could not find much information about online, so I am hoping you guys can help me.
I am developing a WIN32 application...
Hello, For some reason the Ble App Uart is not working on my PC anymore. I have gone over Nordic tutorial again however, the LED doesnt blink and I cant detec the device on...
Hi,
What are the general causes of SDS assert in nrf51/52 ? Assuming that SW has been tested, is there something that could happen in the code that would cause the assertion...
Hi All,
I'm using "scanForPeripheralsWithServices" of iOS to the BLE devices.
"scanForPeripheralsWithServices" sometimes never return anything.
I have to stop scan or...
Hello! I'm trying to build a program for nrf51822 via QT Creator.
I'm using QBS for build. I have a makefile from SDK examples for nrf51822. Someone can help me, how to setup...
