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.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
I have a nRF51 DK. I am trying to sniff the Bluetooth connection between the smartphone and watch at Window 7.
Installed:
Wireshark 1.10.7
Sniffer (tried ble-sniffer_nRF51822_1...
The sdk_config.h configuration file for ble_app_hrs_freertos example contains following definition:
#define NRFX_GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 1
This macro should...
HI,
I have connected to one peripheral from my central and retrieved all the services(For example i need Device Information Service, got all the characteristic values) and...
dear sir,
i have a nRF52DK board,
i want to power on the board but not glowing LED and my laptop not detect the board while connect with laptop,
please given solution...
Hi
Env: keil and no SD
I am doing the first steps on keil + nordic nrf51822. I started by opening the Blinky app (C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Examples...
Hi there ,
i am developing a biomedical recorder which needs to continuously transmit the recorded data ,
data rate is very low (9.6 Kbit/s to 32Kbit/s) but i have a very...
Hello,
I was wondering whether or not there is a way to know, how the connection interval is decided between the two values of the Connection Interval Max and Connection...
Hi, everyone,
We develop the project by using nRF52822 module. But suddnely we discovered that the latest supporting this chip sdk versionis 12.3. The SDK versions newer...
According the the instructions for the Thingy mesh demo, it is possible to manually provision new nodes. Is it possible to identify the unprovisioned node first by sending...
I am trying to make the nrf52832 enter in ON/low power mode for inactivity periode.
I must have the "System ON, No RAM retention, Wake on RTC" as indicated in nrf52832 datasheet...
Hi,
I run the Secure DFU, and I'm doing OTA update without any issue.
The problem is the case that I'm doing an OTA update with a application-version smaller than...
Hi all, Nordic distributors no longer carry the nRF52840-PDK, which included the NFC antenna. What is a direct replacement for the Nordic NFC antenna that used to be included...
I am trying to connect a BerryMed MD1000 Pulse Oximeter (BLE Server) with an Adafruit Bluefruit Feather (nRF52-enabled) Arduino board (BLE Client).
I made an Arduino sketch...
hi All!
I use WAKE UP event from G-SENSOR on some GPIO to wake up the MCU on motion detected.
But sometimes ( ~1% ) the event does not occur for unknown reason until RESET...
