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...
Hi All,
I want to read/write long characteristic (200 bytes max) from Android to my device.
I'm working on the 15.2.0 SDK and S140 Softdevice.
I read some Q&A on...
Hi there,
Right now I am doing some dry research into long range Coded PHY for S=8 or S=2 since I need to have some extra room in the link budget to go the distance. The...
Hi, I'm trying to adapt the ble_gateway example for nRF91dk to use a nRF52 instead a Thingy52. When I change the UUID at ble.c from Thingy to nRF52, I'm not able to get a...
Hello guys,
In next few months I've to put down a new design for a medical product. Both nRF52840 and nRF5340 would fit well the application requirements. But I think this...
I want to use two UARTS ie uart0 and uart1. I read that nrf51822 gpio pins can be set as rx & tx but i couldnt find any example.
I am using SDK12.3
Please attach some...
Hi,
I've looked around the DevZone for answers to this, and haven't quite seen an answer, so I'm going to post my solutions here.
I am using the secure bootloader from...
Hello
I have a use case of typical 3 key (lock / unlock / alarm) car remote lock key fob implementation. Since I already have nRF82810 / 840 based hardware designs that...
I was checking DFU through serial usb/uart on the following link:
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Fsdk_app_serial_dfu_bootloader.html...
I am using nordic nrf52 chip and nordic Soft Device. I observed that power level increases(ramps up ) before finally disconnecting. This behavior is observed when external...
Hello,
I'm working on nRF52832 and i'm porting the SDK15.3.0 (i was currently working with SDK14.2.0) but i'm facing something strange with the function : "ble_stack_init...
hi ... i am using nRF52832 , SDK 15.2 version, using ble_app_uart example , here i want to advertise the device constantly, for that what should i change
i tried to change...
In my project, I typically have 20 central connections to the Nordic device. Occasionally, I need to allow a phone to connect to the device using a peripheral link. When this...
