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'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...
Hi,
When I call nrf_drv_spi_transfer to transfer 250 bytes in non-blocking mode, it takes 1.1ms. Is this normal? Any workaround? If it is normal then I have to split my...
My android app give me this "register with gatt stack failed" error on Samsung S7 marshmallow. The scenario is that I am working with 21 BLE peripherals (nrf52). I scan available...
hello dear Engineers!
I Prepare PCB to produce, so have some question about QSPI pins.
According to the "52.10 Registers" , it is possible to Assign any pins to QSPI...
Hey, I have my nrf 52 dk. I have soft device v3 on my nrf 52.
I was doing a blinky test with two boards (one central and one peripheral)
I was just wondering how to...
I have two sensor: Si7021 and CCS811 connect to board (nRF51 DK).
Si7021 work fine.
CCS811 always return NRF_DRV_TWI_EVT_ADDRESS_NACK error.
Anyone can give me a help?
Hi,
I'm trying to setup NRF52 with a microphone (ICS-43432) using I2S and easyDMA. I'm new to embedded software development, and would very much appreciate your help and...
Hi,
I am really new to the Nordic products and programming for that matters. But, the thing is that I am in somewhat of a hurry. I would like to use a similar code to below...
Hi all. I am sending to BLE device AE A7 04 00 05 09 BC B7 command, getting status 0 ( success ), but do not get any updates or notifications from BLE at all. So am I doing...
I've compiled the secured DFU bootloader (from SDK 12.2) and loaded it on my board. But whenever I run my firmware, it won't start (none of the expected interaction happens...
Hi there,
As the title says, i'm tring to add nus service to the freertos example (board PCA10040, SD 132, SDK 12). Actually, I want to mix it with the peripherical app_uart...
We started with normal Pstorage functions and add now some pstorage RAW functions.
Could anybody explain the resulting and needed linker script definitions flash allocation...
Hi!
This is my first time working with bluetooth and Nordic chip and I'm having program getting started.
I'm trying to program the Sparkfun nRF52832 Breakout Board as...
1.application downloading
we need to download the appliacation to the address which is designated. However, the NRFgo Studio offered offically can't designate the address...
Hello,
I'm new in programming beacons and ble sofware. I'm using the nRF51822 Beacon with S110 and the USB Dongle.
I updated the beacon with the example ble_app_beacon via...
hello, i am new to the Nordic controllers.I am having 2 doubts.
i want to modified saadc example code in keil 5 for that i want to add "app_timer.h" header file...
