Hi,my friend,
Now,I use nrf905.Situation is as follows:
I use the NRF PCB circuit of data manual.Nrf905 work, often loss of data.
1.The Product host is to use the stick...
Hi,
I want to use the Blend Micro with more security. I want use a passkey for the Bluetooth connection. For example through the iOS Device.
Is it possible? Static passkey...
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...
Hi,
I have download nrf5_SDK_for_Mesh_v1.0.0_src and want to start with nRF52840 DK and 52832. I could use EmbeddedStudio to flash it to 52840. Is there a app on the phone...
hi guys ;
i have already an application on android phone that can read and write charchtéristic i also followed the tutorial Bluetooth low energy Characteristics, a beginner...
Hi,
I have an application where both radio notifications and flash operations are used.
It seems that every sd_flash_write() generates two radio notifications. So during...
Hello Everyone,
I am using raytac's BLE module (nrf51822 chip antenna version, 32kb RAM 256 kb Flash ) (www.raytac.com/download/MDBT40/MDBT40-ANT-D.pdf) in our product...
Hi,
I have a problem with NRF_LOG_INFO() macro - it only shows messages form main.c file but not from another .c files in project. Why this could happen?
I work in Eclipse...
Hello,
is it possible to use a external clock e.g. a digital output of a TXCO. As source for the LF clock. So the same clock source as used for the host uC can be used...
Hi!,
I'm newbie with nRF52. I have a nRF51 Development Kit and a nRF52 Development Kit.
I have installed nRFconnect (for Ubuntu 64 bits) in Fedora 24 Workstation (64...
Hi! I have tried to use USB CDC ACM in my project but after running the USB CDC ACM example in the SDK, I found out that the example have the issue of not sending the data...
Hello,
So I'm constantly reading data using i2c into a variable. How do I transfer the data in this variable to the pc? It's just an array.
I understand that I have...
I am looking for a smallest size transceiver with an antenna done as part of the PCB layout (no external antenna needed). The simplest RF PCB layout is preferred, single frequency...
Hi, I purchased a Sparkfun Breakout board for the NRF52832, but the bootloader on it seems to be extremely unstable. Hence, I've decided to flash the NRF52832 directly from...
Hello,
I already checked below link, but want to clarify the limitations of how many concurrent sessions are allowed in Soft Device initialize.
devzone.nordicsemi.com...
Hello,
i add a new custom service with one characteristic that allows me to send values over BLE with nRF connect, but i must send some acceptable values (-2, -4, 0, 4, 10...
Using SDK14.0.0, nRF52832, GCC, GDB/Ozone, secure DFU
This question seems to get close to asking about my problem.
I am trying to debug my application with a loaded...
Hi,
We made a custom PCB using the NRF52832 and followed the reference design. While everything else is working in our system, the BLE part is not working. We are using...
