How do I receive multiple signals simultaneously at a single receiver (433MHz) with multiple transmitters ?
I am working on a polling system. This one is similar to the audience...
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...
Hello Everybody,
I have read these articles on the site : article_1 &
article_2
I need to do something like that, read around 8000 sample with sampling rate equals...
Hi,
I used the app of nordic , that puts the system off in order to measure the current at that mode.
the example i used is at this link . ( system-off-wakeup-on-gpio...
Hi
I'm very new and looking at the PTR5518 breakout board. The docs below specify some of the pins:
Are the pins EN , RX , TX , RTS etc. tied to P0.08, P0.09,...
Dear Sir/Madam,
I want to use the One channel of Timer 1 for PWM generation and other channel is used to measure the pulse width of input square wave.
For above i need...
When I try to step through my code, I get a wdt event firing. I have tried setting the behaviour to pause during debug and sleep
void wdt_init(void)
{
uint32_t operationStatus...
I would like to measure BER and PER on custom board by using sample project that is included SDK.
\examples\dtm\direct_test_mode\pca10028\s110
Could you please teach...
Hello,
I'm powering a Readbear BLE nano using a CR2450 coin cell battery. The firmware application is written using mbed. How can I measure the battery level of the CR2450...
hi,
can i use timer interrupt has more than 1ms period??
#define APP_TIMER_TICKS(MS, PRESCALER)
((uint32_t)ROUNDED_DIV((MS) * (uint64_t)APP_TIMER_CLOCK_FREQ, ((PRESCALER...
Hi, I'm trying IOT SDK now and I got some questions
My devices: nRF51422 DK, nRF51_iot_sdk_0.8.0_f1f6187, iot_ipv6_coap_client_pca10028
Q1: Why is the advertising interval...
Hi Nordic support,
I am building the ble_connectivity project of the latest SDK11. My EVB is pca10028m, the project is located under "nRF5_SDK_11.0.0_89a8197\examples\ble_central_and_peripheral...
HI,ALL,
in the Blue Core Spec, there are such statement here,
L2CAP permits higher level protocols and applications to transmit and receive
upper layer data packets...
Hi, I use [nRF5_SDK_11.0.0\examples\ble_peripheral\ble_app_hrs\pca10040\s132],but I get error such as the following.
{
............\components\softdevice\s132\headers...
I read this older post ( devzone.nordicsemi.com/.../) and have a similar issue but with enough differences that I felt it was worth a new question.
I have an STM32 MCU...
HI, I am new to embedded system and just start to learn NRF52 DK. currently I want to configure a pin of nrf52 as interrupt. so i created new GPIOTE_Handler function . however...
