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...
I have just begun tests with the nRF51822 DK.
I have written a test program which uses the RTC and PPI to generate an event every 125 ms, and use a task to toggle a GPIO...
Hi,
I´ve programmed the nRF51822 DevKit´s module (PCA10004) with S110 SoftDevice and example <ble_app_pwr_profiling>.
In SystemOffMode I measure a current consumption of...
Hi
I trying to read data from EEPROM through i2c bus . i used twi_hw_master.c application code.
i am reading same data from EEPROM when i debug step by step. but once...
Hello,
I would like create a basic programme in c/c++ for the NRF24LU1 .
I have take sdk, when i try compiling 1 programme i have a lot of errors .
What compilator...
Hi,
I use an app_timer to gather ADCs and send with Gazell with period 5ms.
What I suffered is the sent packet is different from what I put in buffer.
my pseudo code...
I am able to send data from EK to MCP but even i am sending one byte of ASCII(alphabet) of data, it is showing as hex value in MCP ex., 'C' as 43 , if i want to see ASCII...
Hi,
How to set the advertisement parameter's (uuid's list) , while using both custom and SIG adopted services?
I modified the source code as below, but it is not showing...
I would like to implement a simple wireless sensor network, using Enhanced Shockburst with Auto-ACK. The idea is that there will be many sensor nodes (SNs) reporting to one...
I have a question about using the GPIOs,I found that I can set a ‘1’ at the same bit position of OUTSET register and OUTCLR register. But which one is effective ?
Hello guys,
Looking through the product specification for nRF8001 I am still not clear on whether a master device can be connected to the nRF8001 (in peripheral mode) and...
Hi,
When erasing one page flash for responding one GATT request, it always went into assert_nrf_callback and has to reset the app. So I have to disable SoftDevice before...
Hello,
I am going to start programming BLE application, and I would like to know which enviroment is best to program it. Are there too many differences between programming...
Hello
According to the documentation the optimal CPU frequency is 16 MHz, Please, could someone tell me if that is correct or not?
Thanks for your help
Hi,
I modified the ble_app_hrs sample application with one custom service which includes, some custom characteristics (128 bit uuid), Now the problem i am facing is, i am...
