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
data sheet of the nRF52840 states that the QSPI port pins should be initialized to "high drive".
I've experimented a little bit because I have problems with a Macronix...
I have connected a BM680 sensor on a BL654 (NRF52840) via I2C. I have connected the power to the BME680 on a switchable power rail. I need to power this rail with a GPIO pin...
I am trying to create a test case for in house validation and would like to know how to do so.
Here is what I want to do:
I want to create a boot loader that checks...
Hello,
In nRF5_SDK_17/examples/dfu/secure_bootloader/main.c, the main program starts off with protecting a couple of flash areas:
But how can, after this, an OTA update...
I don’t know what all the XML syntax is, or what program processes the flash_placement.xml file, or what form the output is in, so I don’t know if I have to do exactly what...
Hello, nrf experts.
I have trouble with testing update over ble from main application. Using buttonless dfu example. But when I'm connecting to nrf dev kit, nrfConnect on...
Hello, I am trying to erase a page on the internal flash memory of the nRF52840. I am doing this as a BLE peripheral with 1 active connection. The problem I'm facing is that...
I am trying to determine the cause of iOS stopping to reconnect to my nRF peripheral in the background. I have seen posts from several years back that reconnecting too many...
Hi
I'm trying to add CMSIS DSP Software Library to my project.
After adding DSP function I'm getting linking error:
components/toolchain/cmsis/dsp/GCC/libarm_cortexM4lf_math...
Hi all,
I have a problem with 802.15.4 association in beaconned PAN. Basically I have two devices, PAN coordinator and an FFD. FFD is able to find the coordinator (throught...
Hi. I am working on the nRF52840 DK. Currently, I am trying to implement a DFU feature for my application.
The application has the bonding feature. Therefore, I tried testing...
Hi.
I purchased a nordic thingy 91 in Singapore. But when i try to update firmware through programmer, it is not detecting the module. Also i am not able to activate the...
Hi,
I'm using a custom board with nrf52840 and sdk 15.1.0.
I have altered the ble central and peripheral example(ble_app_hrs_rscs_relay) to support nus central and peripheral...
