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 am developer of indoor location tracking solutions for asset tracking applications, actively looking out for new technologies, i would like to understand what are the...
Normally I am using nrf51 for peripheral(sdk 8.0.0 s110) and central(sdk10.0.0 s130) device. But I want to use nrf52 for just central device. I tried nrf52 for central(with...
Hello All
Currently i am using nRF51422-DK (PCA10028) Board .I am planing make mesh network using nRF51 devices.i go through the mesh network introduction document which...
Hi,
I'm trying to set a button as an interrupt source. I wrote this code:
void Init(void){
pwrmng_MainStatus = PWRMNG_STS_STARTUP;
//LED
#ifdef DEBUG_LED
nrf_gpio_cfg_output...
I want to read the status of LFCLK,but I find that ,the value I have readed is awayls zero! my code is follow :
LFCLK_State = ((NRF_CLOCK->LFCLKSTAT) >> 16) & 0x00000001;...
Hi,
I had done secure OTA in nRF51 DK board using SDK 12.2.0 and s130 2.0.1 softdevice. Now, i am trying to same thing with my custom Board RL-51822-A1.
For that first...
I cloned the demo project inside the Keil MDK5, from the following path:
pack installer
device = "nRF51822_xxAC"
examples = "uart_pca10028, UART_Example_Application...
Hi,
I want to use the nRF BLE Sniffer to detect wether a connection (between my fitness tracker and smart phone) is present or not.
I am able to get the advertisement...
hi,
I am struggling to create custom service to send the simple message to the client device where both devices are nRF52832 (Server and client). when I receive the message...
I have 2 of the nRF51 Dev. kits and have been ble to run Blinky, BLE_UART and set up the 2 dev kits so that I can send data from one DK to the other and to an external board...
Hi,
I tried to flash the mbed FOTA bootloader on my nrf51 DK. I copied the bin file to the bootloader device. It said the storage on the device is to small. Now it won...
1- I am looking for Bluetooth Chip to control a DC Motor.
2- This Chip need to be small since it will be fitted on a small narrow PCB (10mm width x 110mm long PCB).
3- Chip...
Hi guys,
I want to ask if it is possible for a nrf51822 to connect to a Central ( my cell phone) without advertising. Let assume that my cell phone has nrf51822's MAC address...
Hi,
I am using st-link debugger with NRF51822 module.
I was trying to connect it openocd, but it failed. st-link is working with STM32 processor and able to flash through...
