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...
Hello,
i am writing an application which uses the SDK13 peer manager library for bonding. The Nordic chip is acting as a peripheral.
Is there an easy way to prevent...
Hi，I update my IAR IDE from version 7.70.1 to 8.11.1，when I compile the workspace ble_app_hrs_freertos_pca10040, the error occur in port.c, as following:
Error[Og014]:...
First try to create a TWIM driver from scratch without any DMA. Following the steps in the OPS I get mixed behavior and only the chapter with DMA generates any clock and data...
I ran into an odd issue on nRF52840 using s140 version 5.0.0-3.alpha. My application erases and writes to a region of flash.
I've found that I'm able to erase the pages...
Hello,
I have implemented experimental DFU buttonless example with my application and able to do the firmware OTA via secure bootloader example using private and public...
Hi,
I'm experimenting with the nrf52840 preview board.
I have tried the example "ble_app_att_mtu_throughput" using the coded option to check the extended range and it...
hi, everyone!
I have a question for pstorage, when i use pstorage_store,it was failed, return error code :15 how to solve it. Below is my code
void custom_flash_init...
With good luck, I traced my connection timeout to the slave/peripheral using nrfSniffer. What is most unusual is the slave unexpectedly stops corresponding with the master...
Hello,
I am trying to implement DFU secure bootloader to do firmware update over the air for nrf51822.
I have followed the steps as per the blog
devzone.nordicsemi...
Hello,
I want to ask, did the nordic chip support I2C slave ? I want to make other controller (STM) as Master and Nordic chip as slave in I2C.
Is it possible? or Nordic...
Hello!
I am trying to increase the MTU size to get higher speeds. When I increase the MTU above 65 the application locks/software reset when doing transfer. Up to 65 it...
Hi, I'm facing an extremely strange problem with a product I'm developing.
I've been getting significant idle current measurements (around 7 mA), and I couldn't for the...
I recently attempted to upload a new image via OTA.
After emailing the zip file to my iPhone as an attachment and tapping on it,
then tapping on the share icon several choices...
Hello,
I need a voltage regulator to power a microphone at 1.3V from a 3V coin cell battery and I was looking for a regulator like the lm317 , but with this one the minimum...
