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...
Dear all,
I need to measure a pulse width on a GPIO pin which is in between 100mseconds and 7.2 seconds long without the use of "regular" timers due to low power requirements...
I have migrated a new project from SDK 9 to 10, and now I seem to be having issues.
I'm using the uart_fifo to read data from a GPS, so the data shows up every 1 Second...
I would like to use pstorage to store some data.
From the developer zone I know, that the softdevice has to be used for pstorage.
I'm asking me, what will happen with...
i downloaded source code from github.com/.../nrf51-ble-app-lbs . and i am getting error like C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_DeviceFamilyPack\8.2.0\Device\Include...
my issue is that when I use the bootloader to get DFU working it advertise DfuTarg and doenst show my services. I searched for hours, I found many answers and none worked...
Hi,
I am developing an application on nrf51822 chip. I have set
#define SEC_PARAM_MITM 0
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE
Also i am developing...
Hi Nordic support,
I want to use the OOB key pairing and I found the below discussion:
Set OOB key on Master Control Panel?
This means I need to implement the application...
Hello,
Connection between linux router and NRf51 devices worked before I've updated kernel version from 4.09 to 4.3.
Now, with the same configuration and hardware, I'm not...
Hello,
Connection between linux router and NRf51 devices worked before I've updated kernel version from 4.09 to 4.3.
Now, with the same configuration and hardware, I'm not...
I am trying develop a project in which when we request a characteristic from phone( read request), we will read data from other module through UART and give reply back. I...
Hi,
I designed before my board for 2 layer PCB and i used the coplanar waveguide with ground-plane in the bottom. now i want to move to the 4 PCB layer and i choose the...
Hi, I'm porting my project from SDK8.1 to SDK10.
I replace static app_timer_id_t m_beacon_timer_id; to APP_TIMER_DEF(m_beacon_timer_id);
to avoid hardfault when creat...
Hi all:
I modified DFU-BLE to make it suitable for S130 on nRF51822. I made the following modifications:
On "dfu-ctr1_pt_add"
ble_gatts_attr_md_t cccd_md;
memset...
