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...
Hi,
I'm using a nrf52 custom board based out of the telit bluemod s42. I'm trying to port the ble_app_uart example of the SDK14 onto the custom board.
The code seems to...
hi team,
i am using nrf52840. some examples in sdk14.1. the program is compiling but i cant flash it to the device. i had compiled usbd_audio and temperature example. i got...
Hi,
I'm using SDK 13.1 and SD 4.0.5 and I add to my code the WDT example of the SDK, but the code doesn't work, and when I debug, the code is stucked in HardFault_Handler...
Can NRF52 gpiote detects pulse width nearly 250ns? We use a AFE sensor that notifies MCU it's data by sending a low to high pulse. The pulse width is about 250ns which is...
Hi all,
I'm trying to measure the transmit power of nRF51 development kit with a spectrum analyzer and I am facing the following issue:
It is specified in the user guide...
hi,
i am using nrf52840. i have downloaded code for mpu-6050 in github but it is available for nrf52832. so i made all the changes in the code to work in nrf52840. but atlast...
Now I want to access the RAM of nrf52832 with pdm digital microphone, I need to put the RAM data to the RF data buffer,is there any good way to slove the problem?
Accroding...
Hi,
I'm retreiving data from my Running Speed and Cadence BLE device to my Android smartphone. The BLE device is the Polar Stride .
The problem I have is that the data...
Hi,
So I just started programming with the SES IDE and I'd like to import some libraries from the SDK and external sources to the blinky example(for example didn't even...
Hello,
I want to transfer and particular size image from mobile phone to nrf51822 Board.
can anyone know the application which can transfer an jpeg image file from phone...
When I study the ANT example, ANT Advanced Burst, in SDK document, I see this:
The transmission rate, along with optional features such as frequency hopping, is negotiated...
dear nordic employee
when I send the data with 131 length by function sd_ble_gatts_hvx
some times it return NRF_SUCCESS，but some times It return 19error
I cannot...
Hi.
I'm in the process of migrating an application from the nRF51822 and SDK 12.2.0 to the nRF52832 and SDK 13.0.0. My code now compiles but doesn't link. Here's the make...
Hi,
I tried using ble_notification interrupt to 'warn' me before the start of radio activity so that I can get around the CPU blocking issue. But, for some reason, for 1...
I am working on blinky example and want to modify service/characteristic uuid. I do
that in ble_lbs.h as follows:
//#define LBS_UUID_SERVICE 0x1523
#define LBS_UUID_SERVICE...
