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...
Dear friends,
I want to measure the current of RF of BLE using PPK. However, i do not care the current of other peripheral devices, such as timers, pwm. How can i make it...
Hi,
We have nRF51822 acting as a central and another nRF51822 acting as peripheral. The peripheral advertises at 1 second advertisement interval. The peripheral and central...
Hello,
There is a characteristic with properties:
memset(&char_md, 0, sizeof(char_md));
...
attr_md.vloc = BLE_GATTS_VLOC_USER;
...
char_md.char_props.write = 0;...
Hello everyone~
BLE 4.2 secure connection is very useful for smart automobile. It's fit for many lock/unlock and rent/sharing scenes. Is there a plan for automotive grade...
How do you do
Now use E: \ Nordic \ nRF5_SDK_12 2.0 _f012efa \ examples \ peripheral \ pwm_driver \ pca10040 demo5 of routines
The program below：
Using the oscilloscope...
I used 51802 made a PCBA module for 2.4G transimit , and use 24LU1 as a usb dongle , both of them used PCB printed antenna and haven't used PA.
I want to know , in generally...
I am communicating between nRF24LU1 + and nRF24L01 +.
Are there any registers or methods for receiving sensitivity from 01+ or U1 +?
The data sheet tells us that the...
Hi community,
I custom a service and need it be filter by mobile phone. For that I need my service uuid show up in advertisement.
Search some article. And find SDK example...
Is on_ble_evt () constantly moving?
I will reset the WDT with this function.
However, it seems to stop resetting the WDT after 3 seconds from startup.
Set the WDT to...
Hallo everyone.
I'm working with the processor nRF51422 with S210 softdevice and I would like to use the HFCLK crystal oscillator for clocking another external periferal...
I am trying to work with ECC signing on the SDK 13.0.0. I can create the public key and compute the hash without errors. However, the ecdsa_sign_hash always returns the NRF_ERROR_INTERNAL...
Hello,
I realized that different SDK versions have different behavior for DFU. I'd like to add DFU feature into my heart rate application. In nordic infocenter, it's mentioned...
I am trying to pass a base64 encoded string as an argument to a CLI command over UART. It seems like the longest length command I can send is 258 bytes long. How can I pass...
