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...
Hi
Do the latest sample apps (for example, Heart Rate) which do not required bonding behave as follows:-
make connection from iphone
enable notification
check...
We have done some test on how fast we can receive data from a BLE service, which is around 6KB/sec and this is all fine. This test was fairly easy to make, as we could just...
I have implemented my own I2C driver and I am getting issues with NACKs.
On review my code is doing what twi_hw_master.c is doing.
I then went looking for a Nordic sample...
We have developed and certified a module which uses the nRF24l01+. We spent a good amount of time tuning the antenna circuitry which has resulted in very good range... in...
Hi,
how to get into the bootloader mode without pressing any button, when some application is running? I also tried it with setting the NRF_POWER->GPREGRET but it is not...
I am looking for a minimalistic schema design using BLE for collecting data from i2c (twi) sensor and sending them over blue-tooth to the receiver. I need the following features...
Hello,
I would like to know if there are any restrictions in the amount of external memory (RAM, Flash) that can be added to a system using a nRF51822. In that case which...
Although there are some posts dealing with bond manager issues, I have not been able to find a similar issue. I am using part of the BLE code from nRFready Desktop 2 v1.0...
Hi,
i have some trouble with acting with the nrf 51822 ADCs. My Problem is that i have an Impuls which is 100 uS long and i have to measure it with 2 ADCs. I know that...
Hi,
What will happen when we press the service discovery button in the master control panel? do we get any event like BLE_GAP_EVT_CONNECTED? I couldn't find any detail regarding...
I'm looking for information to start developing BLE slaves with nRF51822, but I can't find any datasheets/SDK. Do I need to buy the Development Kit in order to have that?...
I have an issue with my keyboard working with the windows suface (on windows 8.1). Occasionally, the last character sent is repeated several times instead of one. I do not...
On the nRF51822, I see that by programming the readback protect register, one can prevent reading code regions 0 and 1 from the SWD interface. However, if one had access to...
Hi,
I just watched a webinar from the bluetooth SIG on how to create source code from the nRFgo Studio for the nRF8001. Is the same possible for the nRF51822? To create...
Hi,
We modified the ble_app_hrs code to work with accelerometer peripheral, and we have created some custom characteristics with custom uuid's. Now we need to set the device...
