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...
hi，
we are using52833 QFN40 to test carrier,but the program will loop at as the picture bellow,while it runs well in 52833 QQFN73 in another board, why? Coutl you help me...
Hello,
Our modem consumes a lot of current when we use a simcard from a provider 1 (a MNO), much more that when we use a simcard from another provider 2 (a roaming service...
Hi,
with a custom hardware, I'm using a NRF9160 with a ESP8266 chip over uart with following prj.conf and board overlay:
I was trying to open a socket (that uses the...
Hi
The chip used is nrf52832, the SDK version is a peripheral device v13, and the central device uses v16.
The referenced example is ble_app_multirole_lesc and has been...
Background: SDK 16.0.0, SoftDevice 7.0.1, 1 ble_central connected 6 ble_peripheral, Send an instruction to 6 ble_peripherals every 50 milliseconds, at the same time, the ble_peripheral...
We need fast response from peripheral to central. That means we need a fast connection interval. We are using less than 100mS. But that results in an unacceptable battery...
Hi I have a question regarding USB port on the nrf52840 device When connecting a new device to computer is it possible to tell PC to assigne the same COM port number as last...
Hello, this is my first post in here. I'm trying to read the TX_POWER information of my beacons. I'm able to read this info using the nRFConnect app on my phone no problem...
Hi,
If I want to write a driver to control the communication process on nrf52840, the SDK is based on BLE mesh5.0.
How can I do it? do you have any examples?
Best...
Thank you ahead of time for any help that the community can provide. These forums have taught me a lot over the past few weeks. In my project, I am noticing 20x higher sleep...
I'm unable to get SPI to work on my nRF5340DK board. I can see activity on MOSI and SCK pins, but not on CS. The pin is not even initialized and is floating.
My overlay...
Hi,
During automatic assembly of the NRF52840-QIAA
We have found after Xray that we have air gaps surrounding ground pad vias - see attached images below.
I am...
I have a project that runs I2C to collect data from a pressure sensor and I have a different project that sends arrays of data over Bluetooth and they both work perfectly...
We are using RTC with external 32.768Khz clock to maintain and count a full date.
we found that we have a drift of time counting about 1 minute on every 10 nintues which...
