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...
In the nRF SDK version 11 (specifically, this download ) some functions are either declared or defined to be __WEAK .
I will use app_error_fault_handler(uint32_t, uint32_t...
Hi, I found a bug with weak function declarations in SDK11, using GCC.
app_error_weak.h contains the following declaration:
#ifdef __CC_ARM
void app_error_fault_handler...
Hi Nordic Community and Developers,
I'm a beginner in the RF world and I'm designing a small Bluetooth module using nRF51822 to acquire the RF knowledge and to use it in...
Hello,
I have an NRF51822 (redbealab ble nano) that I would like to use to count pulses in very low power mode.
Pulses are asynchronous
The rate of pulses can...
Hi,
How Can I verify if my CPU has entered Low Power mode??
I have power manage function running in the main loop , but when I put breakpoint on sd_app_evt_wait() or...
I am trying to read data from SPI slave on the nRF51DK using mbed online compiler. To do this the mbed SPI library (class) includes a method called transfer. When I try to...
Hi,
I am trying to save some parameters after disconnection pstorage_clear or pstorage_store will not return to the pstorage callback function. I am working under SDK 9...
Hi.
I have a question.
I use nRF52 Preview DK, PCA10040, SDK11,
I tryed some examples in nRF52_SDK.
Some projects moved,and some another projects didn't move.
I...
I don't find the information in the nRF51822 documentations and in this forum.
How can I know that? Is there some register to check, or some hints to know that debug mode...
hi,
i am using the nrf51422 and trying the UART example ( in order to connect the nrf51422 and a stm32f4 using serial connection)
what i didn't understand is what does the...
I am using a nRF51822(pca10028) for current measurement. I had set up the devices as told in user guide. I am using SDK 11.0, softdevice s130 and default ble_app_pwr_profiling...
I am trying to make a custom BLE service and be able to do debug it with UART at the same time.
Just trying to print some UART messages at some points in the code.
However...
I have a couple of questions with the MCP.
Before knowing MCP, I've been connecting with my nrf51-DK with the nordic master control app installed in my smartphone. Opening...
I am doing burst transfers using exactly the code suggested here devzone.nordicsemi.com/.../
The problem is, the data is received three times by the receiver (three times...
