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'm just starting with all this. My set up is a nRFgo motherboard with a nRF51422 DK attached (PCA10007).
I've installed all the tools of the toolchain as stated in...
I've just flashed the softdevice 5.2.1 and BLE Proximity sample app to my nRF51822. I presume any previous bond state on the device should have been wiped by doing this. ...
It would be nice if you could update Application Note 29 ("Development with GCC and Eclipse") for the nRF51822 to include instructions for Mac OS X.
I don't think it's...
Hello,
I developed a BLE based application using nRF51822 softdevice S110.
This application is very low consumption.
The device connects every 60 seconds, and can send...
I try SDK hid mouse example this days, In SDK v4.2.2 it does not work sometimes when I press button 0~3 ,and some times the mouse arrow move slowly when I press the button...
Hi,
I'm trying to make the nRF module work with an older IO demo board. Does the flexible GPIO system via pin crossbar allow you to modify the pin assignments of the SWDIO...
I what to send button data , how to construct button data array :
uint8_t buffer[INPUT_REP_BUTTONS_LEN]; in function ble_hids_inp_rep_send() ?
In SDK mouse demo I can...
I want to add to lbs service battery service(bas) as well. One of the changes is in the advertising_init() function:
static void advertising_init(void)
{
uint32_t...
Hi,
We have a custom board, with accelerometer sensor, our ultimate aim is to collect the accelerometer data and transfer it to the master device (PC or smartphone) using...
Hi there,
Will any 4.1 features by making their way into the respective Soft Devices any time soon?
I would imagine 32-bit UUIDs would create some memory pressure on...
I am trying to use Eclipse+GCC for my projects. I found a similar issue as stated in the following post:
devzone.nordicsemi.com/.../nan-29-nrf51-sdk-no-project-files
...
I am having trouble getting up and running with the development kit (without the starter kit).
My setup is as follows:
The PCB antenna module is hooked up to the JTAG...
Hi,
In my design, there is a tag used by 24l01,It can transmit the temperature value.In the tag, the parameters are like this:
addrofch[0] = 0xe7;
addrofch[1] =...
Hello,
When the Ant stack want to transmit a packet while the BLE stack is using the radio, an event called EVENT_CHANNEL _COLLISION will be returned, is that...
Hello,
when the device NRF8001 starts Advertise, it sends out only one packet and unexpectedly terminates with a fatal hardware error in "ll_ctrl.s0.c" line 572. This happens...
