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...
Hi,
it seems there was lately a new IC revision release of the nRF52840.
Is the nRF52840 IC Revision Engineering B 100% pin compatible to Engineering A, i.e. pinning...
Please excuse my basic question but I'm new to this - I am needing to have data collected from probe/sensor, which would be in a device, sent every hour to an android app...
Hello,
We plan to switch between two sets of UART pins for factory testing. One set will talk to an IC in our design and the other to a USB port through FTDI. Since simultaneous...
Hello,
We'd like to connect 50 bluetooth 5 devices (nRF52840) to a Receiver (made of multiple centrals nRF52840) with a long range (PHY 250kbps, conn interval 50ms, no...
We are evaluating the nRF5 SDK 13.0 to upgrade our projects from v12.0 and it looks like it has a bug related to the FDS functionality.
I managed to reproduce it on the...
Hi friends,
I am doing a project in NRF24le1 using RF communication with multiple nodes with a host using star topology.
Could you suggest a Protocol that supports connecting...
Hi,
to what impedance shall the BT antenna be matched?
Copying from the datasheet:
A matching network is needed between the RF pin ANT and the antenna, to match the...
Requests for the FW:
Add characteristic to access general GPIO pins in analog and digital form.
extension of the existing MOS_1-4 access, PIN read/write under the...
Hi,
We use nrf51 SDK v9. I found there are two SER_MAX_CONNECTIONS defined both in app_ble_gap_sec_keys.h and ser_config.h. Their values are different. One is referred...
Hello,
I have a problem when I try to use cheaper Android phones to communicate with our 52832 chip.
I can discover the peripheral and then connect, but when I device...
Hi,
I flashed softdevice and ble_app_UART_c code. But after searching bt device, i could not find bt nrf52 device in mobile.
Do i need to something more..
hi,
i am using nrf52840. with sdk 14.1. i am trying to broadcast my dk as beacon. with your neccessary examples. i have created my own services and started advertising. when...
I want to transfer data using UART to BLE by Baud Rate 460800 up to(using nRF52832).
I need to send a file, its size is 100MBytes
However, the use of examples(14.0vesion...
I would like to establish a BLE unencrypted link to send text messages. I have nRF52480, nRF51 USB dongle, and a mobile phone. I run Ubuntu 14.04 and Win10. It is not clear...
Is it possible to program the Atmel SAM D20E chip (based on an ARM-M0 cortex processor) externally using the P19 debug out header on the nRF51-DK?
Thanks.
