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...
nrf51822 QFAC have more flash and ram than QFAA, so, is QFAC consume more electric current than QFAA in idle mode and sleep mode? in low-power consumption product，if it's...
Hi,
I want to configure 2 channels of saadc in differential mode as follows:
But when I received data, it seems that only the channel that its channel index is zero...
Hello,
1) In nrf5340 app CPU, there are only 3 timer I can use, timer0, timer1 and time2, is it right?
2) I want to use four timers in my project, to control two SPI...
Hello,
I'm seeing nrfjprog return with error code 33 when I try to program (or erase) an Adafruit Feather nRF52. I'm using an nRF52-DK as a programmer. The feather board...
Hi,
I'm trying to write/read from flash in my app. Reading/writing works until I either:
a) run ant_hrm_rx_start() - then after the call to nrf_fstorage_erase I get "00...
Hello!
I'm from Russia, my name is Anton.
I need a developer kit to research a real-time motion tracking system (RTLS) based on Bluetooth Low Energy, Bluetooth 5.1, Bluetooth...
Привет! Я из России, меня зовут Антон. Мне нужен комплект разработчика для исследования системы отслеживания движения в реальном времени (RTLS) на основе Bluetooth Low Energy...
I am trying to upload an image via BLE DFU, tested on mobile phone and Desktop (Windows) But I receive the following error after all packages have been sent to the device...
Hi,
can nRF52/nRF53 automatically fall back to LDO mode if DCDC enabled in firmware but with bad inductor connection on PCB?
Could re-flash the firmware to disable DCDC...
Hi everyone.
I'm developing a product with nRF5340 and zephyr os. But I found some problems about bluetooth dfu.
Because my application very big. So I can't use defualt...
Hi,
I am evaluating the use of nRF52832/52840 running ZephryOS HCI (Uart or USB) in combination with Bluez/Linux to as central device/gateway. If I were to use the Nordic...
I'm using arm-none-eabi-gcc (10-2020-q4-major or 9-2020-q2-update) to build my firmware. For some reason recently it started to overflow the flash, and I can't figure out...
I inadvertently flashed my PPKII while trying to flash a 52840 Dongle. Now my computer doesn't recognize the PPKII when I plug it into the USB (PPK does not light up). I've...
Just need a little help on something that is probably very simple. I am sure I will be embarrassed at how simple this is.
I get the nr52 device MAC address and append 4...
Hello All,
I have a requirement where temperature Sensor is collecting temperature data constantly. If temperature data is changed by at least 10% from previous value...
