My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
Hi,
I'm able to successfully enable Access Port protection, either using nrfjprog or by setting NRF_UICR->APPROTECT register to 0xFFFFFF00 in code.
But I have a problem...
Hello,
Since this seems to be a very hard topic to find info about (its very contradictory and confuse) I'd like to ask a Nordic employee directly.
I'm planning to build...
This concept keeps popping up when I'm dealing with mesh networking.
My guess is that, to avoid air collision, packets/pdus are sent on a randomized or predefined combination...
Hi,
I am using ble_app_uart for my development, in that I have buffer size of 2kB which will store all the incoming data and the data will be processed and send over NUS...
Hi all,
I am using an NRF52 and SDK 13.0
I have an external device (central) that I am connecting to using my (peripheral) device.
My peer manager set up is
#define...
Hello All,
I've got two Rigado development boards that I'm programming with KEIL uvision 5. I've tried a few examples, for example: blinky, which program and work fine...
Hello
I want to clarify the exact meaning of the carrier test or unmodulated signal in DTM.
In carrier test mode, DUT transmits 0xFFF....FFF which means all one pattern...
Hello,
For my project I need to measure the battery voltage while transmitting data to get a good indication of the battery capacity. I've found an old example ( link text...
Hi,
nRF24L01 seems like a perfect choice for home automation project that I have in mind .. I will have to install about 20 of those around the house.
My question is...
Hello,
I'm working on the bootloader using SDK13.1. In the file dfu_req_handling.c there is a variable called m_flash_operations_pending that gets incremented with every...
HI,
I am very new to this, I am looking to put a video or flash player or another image to to load into my nRF51822 beacon kit. I am thinking the straightaway method would...
Hi,
I am working with ble_app_uart code, in that I am trying to configure different baud rates like 9600,38400 and 57600. With these baud rates I am not getting any issues...
Hi
sd_ble_gattc_primary_services_discover() is being called from ble_db_discovery_start() within ble_db_discovery.c. I'm trying to get the ble_cts_c service working. It...
Hi
I am receiving INVALID_STATE (error code 8) from ble_db_discovery_start. According to documentation, this error can be returned "If this function is called without calling...
