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 all currently i am setting a Client Characteristic Configuration value to indicate to retrive value from device. but in some device refuce to give value . so first i...
I'm using the nRF51822 with the S110 soft device. When specifying the maximum size of a variable length characteristic notify property (the max_len field of the ble_gatts_attr_t...
now,I want to know how the process that application invoke the method to send or recieve the data,but I did't find it in the source code ,and when I want to find the definition...
I want to read a line of text from a UART peripheral. I'm using app_uart.c, not the "simple UART" example code.
My main() looks something like this:
uint8_t line[MAX_CHARS...
Hello,
I've been working on the SPI module for the nRF51822. I used the sample spi .c file as a starting point, but I got rid of the timeout (not sure why there is a timeout...
Hi,
We have nrf51822 evaluation kit and some custom board with nrf51822 chipset(works fine). And also we have tested the nrftoolbox application with the proximity service...
I use the example "Keil\ARM\Device\Nordic\nrf51822\Board\pca10001\led_radio_example" and "Keil\ARM\Device\Nordic\nrf51822\Board\pca10000\led_radio_example" to communicates...
Hello, I think there's a mistake in page 35 of the specification, it says that if Auto Retransmit is disabled (that meaning Auto Retransmit Count = 0 in SETUP_RETR register...
Hi all,
I am using an nRF51822 Development Kit and I would like to create a simple test code that allows me to send data (no matter what kind of data, also a sequence of...
Hello, I am working with both QFABA0 devices as well as a QFAAC0. Because of the outdated silicon I am constrained to SDK V4.x and SD V5.x
My current test setup is
I...
Hello,
which profiles are available currently to the S120 protocol stack? In the nRF518 SDK V5.1.0 I could find only one example profile for Heart Rate. However, this is...
HI,
I am the beginner of develop bluetooth le device, and test the sdk 4.x examples and it's work correctly,
then i updated the sdk to 5 , but i can't get the example...
Hello,
I am Ethera's engineer, evaluation technologies to include on our next generation products.
Here our goal is to have a transparent mode between a smartphone program...
Hi There,
I want the functionality of my device to change when a value is written to a gatt characteristic. I've written an event handler that gets called whenever a write...
