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...
I'm using Eclipse Mars with gnuarmeclipse plugins to evaluate the new nrf52 preview board. After much fighting, I've got the blinky example project building but now I can...
I am using the EmbSys Registers Eclipse plug-in to view the nRF51822 register values. The majority of the registers allow read only. Why isn't the access set up so that more...
While attempting to test multiple iPhone models on the ANCS example, I'm finding that even after I forget the nRF DK from the iPhone's Bluetooth menu, I have to reset the...
Hi:
I use the demo code (nRF51_SDK_9.0.0_2e23562-NORDIC\nRF51_SDK_9.0.0_2e23562\examples\peripheral\spi_master) find a BUG(?) : when i use 1M clock , 1byte translate use...
Hello,
I am currently optimizing the throughput for my mesh network and I am wondering whether I've hit the limit of what's currently possible. I have two methods for sending...
I want to measure the RSSI strength of my Bluetooth module, in various distances and situations.
I read in the description of the app nRF Master Control Panel that:
...
I'm trying to change the mac address of my nRF51822 chip using something like:
ble_gap_addr_t m_address_1;
m_address_1.addr_type = BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE;...
Hi,
I use GCC for compilation and nrfjprog for flashing. A few weeks ago I needed to switch on compiler optimization (Level 1) because my code grew a little too big. Now...
Hi,
I would like to have several nRF51 development cards connected to my computer at the same time using the USB debug port. The serial port and the RTT port work when several...
Hi,
We are trying to develop application with OTA DFU on nRF51. And we need to build bootloader ourselves. We use gcc for development. We found the bootloader example for...
I tried to run beacon example (from SDK 9.0). Even after uploading hex file I was not able to "see" becon. I'm using st-link v2 and openocd. Let me tell a bit more about what...
Hi,
I'm making device with nrf51822 chip and 400mA battery.
It connects to smart phone.
It has to calculate heart rate and some other things, so it's doing it on device...
Hi All,
I just bought the Nordic Semi nRF51822 DK (without the starter kit). I tested the Heat rate monitor app and it worked fine. It could send some random values to...
Dear all,
I tried the example program ble_app_uart given in the examples section of the Nordic folder in Keil installation. I created the hex code and programmed my chip...
