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...
hello i want To use mbed for nrf51 dk. i used this link developer.mbed.org/.../ . i am following steps but i can't copy hex file into bootloader. i got error message "There...
Hi,all
my question is in the title.
i am making a project like NUS (sample in SDK).
i found that during the data transmission Situation，the write without response...
Hello,
I was using Nordic's Master Control Panel for a while to upload firmware to my nrf51822 BLE beacon for a while and now I want to move one step further. I want my...
HI,
In the BLE Spectification, both of the inquire and scan can find out the advertising slave role device.
what's the difference between them?
And Is it true that...
I am trying to emulate the case where a scanned peripheral goes offline before the connection was issued by the user by calling sd_ble_gap_connect() with a completely made...
Hi, Guys,
I have occured a wired thing. I use NRF51822 with softdevice S130 to do a BLE project. I use both spi and twi to get information from sensor(I use spi0 and twi1...
Hi,
In my application I need to keep both time and date so I need a real time clock & calendar (RTCC). I was planning to use on the nRF51 real time counter (RTC) to implement...
Hi.
I'm trying to declare an uint16_t array while programming on the NRF52 Development kit as follows :
uint16_t FinalSignalArray[225000];
However, I keep getting...
I want to read the nrf51 memory, I'm using nrfjprog.exe --memrd 0x0 --n 0x40000 > name.txt
but get something like
0x00000000: 20000C58 00000115 0000012F 00000131 |X....
Hi All,
I need to read the data written on RX characterstics of nrf_uart Service from my board using bluez.
I'm using interactive mode of gatttool with my Nordic sensor...
Hi,
I need to design a small nRF52 board, with a 3cm by 3cm size. I am very new to antenna design, so i have some questions, in order to avoid ruining it. The reference...
I'm trying to write 32bit word on flash memory every 25ms, but when I read the memory using nrfjprog I noticed that it write only 16 words (32 bits), in this code saveToFlash...
1,How do I send a data packet using BLE Peripheral? What API should I call? How should I prep that API? Do I have to care about the format of the data that will be sent, or...
