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...
Dear Nordic
Does Nordic have a passive writable chip available (with compat antenae) that can be activated by mobile device bluetooth scanning event. The mobile device...
Hello
I am trying to run the dual mode BLE/Gazell application example ble_app_gzll. I adapted it slightly such that the stacks are switched automatically in main() as follows...
Hello
I'm using nrf51822 EK board. This is my first time to develop application in ARM system.
I want to develop a ble application.
This application can be shut down (system...
I've got my custom PCB design assembled. Attached segger jlink, but it detects only 0.1 V, although Vdd is 3V.
How is the power measured?
What should I read on SWDIO...
Dear
Is there a possibility within Nordic SoC to make a passive RFID Tag which will connect to SmartPhone via Bluetooth?
Just like µBlue Series, but smaller and using...
I found the "S110_SoftDevice_Specification_v1.2.pdf" but not the "S110 softdevice release notes" mentioned in a previous question about DCDC usage. Where is that doc?
What...
I have been developing on a nrF51422 QFAAC0 chipset. That chipset required SDK 4.4 for soft device capability.
I requested the latest silicon (so I could develop against...
Hello,
I would like to build a tool in Python that allows sniffing/interaction with BLE traffic between nRFgo modules (nRF51822) and a Mac via the master emulator. I am...
I have bought the Bluetooth low energy evaluation kit nRF51822. It can be paired with a Nexus and a Sony Xperia without problems, but it does not appear at all on Samsung...
L.S.
Today I decided to have a look at SDK5.1.0 for nRF51822 which supports the S120.
It is deliverd as an msi file with (as far as I have noticed) no support for specifying...
Is there anything preventing anyone from uploading the tinyest image that simply dumps the entire ROM content on the UART?
This would sort of circumvent the HW locking...
Hello,
I use nRF51822 for my project and I would like to purchase some BLE packet sniffer. Does anyone recommend any sniffer? My purpose for that is debugging and check transaction...
On PCB layouts I often see that the HF xtal is oriented at 45 degrees relative to the orientation of the 51x chip (that is to say the edges of the the xtal and 51x chips are...
Hello Nordic expert,
Regarding the antenna load impedance, I can find the data in nRF24L01+ datasheet and it is 15ohm +j88ohm.
But I can not find the antenna load impedance...
hi,
now ,i have save the power,so need to close the spi interface at some time.
but when i call follow function (hal_spi_disable).
it see not close the spi interface, ...
