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,
There's lots of questions and back and forth talking the nrf51 SDK both on here and on other sites, about the requirement for a product key to access and download...
Hi,
Using nRF51DK with softdevice 8.0 and sdk8.
I found the max number of whitelist in "ble_gap.h"...
/**@brief Maximum amount of addresses in a whitelist. */
#define...
Hi
I want to get the number of broadcast data.i try it as follow:
But i can not get the BLE_EVT_TX_COMPLETE event. Why? can you tell how to get the number of broadcast...
Searched -- without success -- the SDK docs extensively for access to the Transmit Window Size.
Wondering if there are ways we can manipulate it, and query the current...
Hi all,
I want to know how long it takes for NRF24LE1 to wake up from low power mode, especially in these situations:
1) Wakeup from pin voltage level , from Register...
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...
