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...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hello,
I have not found a lot of information on connection encryption. I want to use a preprogrammed Long Term Key in my mesh that is then used to establish subsequent...
This is the application file I am trying to download:
dx02.zip
This is the sniffer Log I just captured by wireshark
dx02_20150820.pcapng
I was able to upgrade firmware...
We have a heavy duty scan based application being built on top of the nRF51822 SOC. We have tested the scan function (S130 SD) on both a custom PCB and also the Nordic Smart...
Hi,
I have PCA10028 board, and I'm trying to implement UART send/receive.
I've searched for the problem here but could not find a solution for it.
My uart init function...
Hi
I'm using Keil V5 to program the Nordic nRF51 DK ( the one here: www.nordicsemi.com/.../nRF51-DK) but I'm a bit confused as to whether or not I need to change the settings...
I am not quite certain what the advantages/disadvantages are of using LDV vs DCDC if you are using an external regulator. In my case i use a LiPo battery outputting ~4.2V...
In the ant-to-ble bridge example in the 7.x.x SDK, there is the following comment in examples/multiprotocol/experimental_ble_ant_app_hrm/main.c :
// Need to close the ANT...
Hi all,
As I know in constant latency mode, both the regulators (1v7 & 1v2) and HFCLK are kept on. Is there a way to keep the HFCLK on while one or both the regulators...
Follow up this image. I want to reduce the negotiation time.
10:44:43.655 --> Connected to D6:9E...
10:44:45.123 --> Services Discovered
= 45.123 - 43.655 = 1.468...
when i test the ancs example application for nrf51822, i foud a question : after i disconnect the lightblue ios app with nrf51822 peripheral, the iphone still connected with...
I downloaded ble_app_lbs from GitHub. Loaded the project (on GitHub it was saved as a MicroVision 4 project) into MicroVision 5 and build with no errors or warnings.
I...
Hi sir
I want to combine heart rate, proximity and uart(proprietary) projects to one project.
As your experience, is it possible? Any side effect for that? Thanks.
J...
I have an NRF51 board running as a GATT server. Using an iOS application (LightBlue) I connect to the NRF51. If I quit the iOS application then I get a disconnect event and...
Hi guys,
I got some questions with HID over GATT on iOS/Android:
Does iOS/Android handle Telephony usage input (e.g. for phone pickup/decline)? If not, is there...
