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...
Hi.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
Dear friends, 1) As shown in the pic below, there are some values "max:13.70, min:3.33, rms:3.45..." at the bottom of the pic. which area is these values calculated from?...
I'm finding fairly large lags with the RTC2 I'm using. I use an app_timer to sample the current RTC count value as a timestamp (MM:SS:Hundredth-of-a-second) and send it out...
Hi all,
I have a question to complete the tutorial 'Setting up device firmware update(DFU) on the nRF5 DK'. this
I have tried to set up my nRF51 Development Kit.
Everything...
I am facing wierd behavior after migrating to sdk 10 serialization code i.e ble_connectivity example program. Unable to scan peripheral devices, some times unable to connect...
in SDK14 I'm trying to add an SD card into the BLE central example.
The SD Card example compiles and runs OK. Problem happens when I combine that code into ble_app_uart_c...
Hi,
I'm checking whether SDK 13.0.0 secure bootloader dfu can proceed correctly with iOS DFU library if the process is interrupted because smartphone application is restarted...
Hello,
I want to enable UART only when it is necessary to send data.
I want to use ble_app_uart_low_power_master or ble_app_uart_low_power_slave
The URL of ble_app_uart_low_power_master...
Hello,
I've been working on the ble_multilink example and managed to combine that with the ble_hrs_c example to connect to multiple heart rate units and receive the data...
I create software uart librarty for nrf52832. For one pair tx, rx it's worked (on 9600, 19200 baudrates). Then I create multi-instance software uart (all of them gonna use...
Hi,
I have recently inherited a project from a former worker. The code intends to read data from a peripherial through TWI (the peripherial is a Si7053 digital temperature...
The SAADC on the nRF52832 consistently reads 20-30mV low, regardless of the source (AIN channel or VCC), Tacq, Resolution, or gain. All of the measurements are using the internal...
HEllo,
I am trying to set up a whitelist advertising and scanning, and while the advertising seems to go fine, I am getting an APP_ERROR:ERROR:Fatal on my central while...
Hello all,
Accordingly with nrf52832 product especitifation when radio Rx is active there's a additional 5.4mA consumption. My doubt is how softdevice s132 handles the Rx...
hi!
i am working with the nrf52 and i am looking for a timed sleep mode, meaning, a function that goes into sleep mode for a given duration.
is there anything like that...
Hi all,
I am working on my Central device to request pairing to my peripheral ( I asked about the peripheral in my previous post , both are running a nRF52DK and SDK13...
