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...
Hello,
What is he meaning of PROTENSET0, PROTENSET1 in sd_flash_protect()?
How can I use this function to set WRITE PROTECT to a certain flash page?
I searched a lot...
Hi,
I need to use nrf51-ble-app-lbs application example to add my customized applications. I have downloaded the project but I'm not able to compile it probably cause I...
Hi All,
I am new in nrf51 development. I have a nRF51-DK kit. I would like to make development in Linux (Debian) only.
I found a lot of documents and I can compile examples...
I have read many times about how BT LE allows devices to run for more than a year on a coin cell.
However, the least current consumption I can obtain while connected is around...
Hello,
We are developing a system using a receiver nRF unit, and multiple transmitter nRF units. The transmitters use the proprietary radio protocol (not bluetooth LE)...
Hello,
I am trying to flash an application onto nRF8122 from an android mobile using the Nordic app. After pressing the DFU button, the programming fails giving a pop as...
I've been looking for information on GCC support for the DFU bootloader examples in SDK v7.2.0 for the BLE Dongle board(PCA10031) but unfortunately there's nothing in the...
Hi
I'm testing the nRF Toolbox for Android. But I get this error when I try to connect using the proximity feature:
I'm using the nrf51822 EK with the s110 ble_app_proximity...
Hi Nordic Guy,
I'm trying to fine tune my connection parameters for better battery life, while at the same time trying to keep them within Apple's guideline. I notice in...
Hello guys, I'm going to start programming for nRF51822 and I want to ask you something.
I'm going to start coding for mbed HRM1017 which is the simplest eval board I found...
I'm attempting to use a custom UUID as outlined in nAN-36. I get an error (NRF_ERROR_DATA_SIZE) when I call ble_advdata_set . Specifically:
ble_advdata.c::uuid_list_encode...
I have a bluetooth hub (NRF51) as central and a wearable device (NRF51) as peripheral. What I need is that as soon as a smartphone enters the range the peripheral let's go...
Hello,
I'm redrawing and routing my own PCB for nRF81x22. I take the details from pca10028 files.
My question: Can I route the PCB with only 2 layers?? I have seen only...
Hello,
I had to use sd_ble_gap_address_set() to make sure, that a bootloader running on the same device will not be cached on OS/X:
static const ble_gap_addr_t gap_addr...
This may be a newbie question, but it had puzzled me for a while now.
Looking at the PCA10031's schematics i can see two leds been used.
LD2 i can figure out. Datasheet...
