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...
Hi~
I am trying the example code of [--app-button-example-master--] from here... github.com/.../nrf51-app-button-example
for understanding button press features. I did...
Here i have made an UART0_IRQHandler routine. When i try to send some 50 bytes data through UART using PC tool here its receiving bytes, but it only receives 1st 6 bytes which...
Hi Everyone,
I'm working on adding DFU on my project and here is my setup:
Softdevice = 7.1.0
SDK = 6.1.0
DFU Bootloader = Keil compiled from SDK 6.1.0
MCP...
I'm having a bit of confusion understanding how the nRF51 Series Compatibility Matrix works.
I have a QFACA10 development board running my software perfectly, but when...
The nRF51822 Bluetooth Smart Beacon Kit User Guide (nRF51822-BK-UG) mentions an iOS project contained in the zip file nRFBeacons_iOS.zip. Where is this file? I cannot find...
Hello all,
I'm trying to save the service context with the Device Manager on the Central side. But I don't understand the implementation on how to do this. But no information...
I'm trying to adapt the BLE_BAS_C library to perform discovery and read/write operations for a custom service. However, when I change the UUID that I register with ble_db_discovery_evt_register...
i used this function to send data to my ble device ble_nus_string_send.this function sends ASCII values. and when i pass this function hex values it converts them into ascii...
Hello,
I was using wiringPiSPI() to connect via SPI and so i was using wiringPiISR function to create an interupt handler that will do callback to the user suplied function...
I'm compiling my project successfully in Eclipse, but trying to build it from the command line (cygwin) fails near the end with this error (make, make all, make nrf51422_xxac_s110...
I want to restart the radio portion of the softdevice - all of BLE essentially - to update the connection parameters and device name mostly. Is it necessary to re-initialize...
Hello Everyone
I have designed the schematics for my prototype but i have a question for impedance matching can anyone verify my technical doubt
I had put a 2.45GHz...
We are using nrf51822 for products of our company. We use mbed + nRF51822 driver + BLE_API for the BLE peripheral devices. The softdevice is s130 ver 1.0.0.
I create an...
Can the nRF51X22 be paired with an iPhone to communicate (both ways) using regular BLE and emit a beacon signal at the same time? In fact, I'm looking to change the beacon...
So I suspect there is a very simple answer to this, but a couple days of much reading and searching haven't led me to a very clear answer.
My setup: Galaxy S3 (Android...
