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...
dear all：
I use the spi slave mode. i have a question,pls help me.thanks.the questions as follow:
I want to distinguish instruction type, and then reply to the corresponding...
Hello,
I am working on nrf51822 SDK 9.0 and softdevice 8.0 . I got the application note to create a custom profile for SDK 5.2.0 and softdevice 6.0.0 in nAN-36_v1.1 . ...
Hi: We develop our program based on (nrf51822 QFAAG0 1403AL), I found a serious problem that our new IC is (nrf51822 QFAAG2 1415AF), and the old program can't run on it any...
Not sure where to post this...
but there's a minor bug in components/toolchain/system_nrf52.c, where NRF_UICR->PSELRESET[0] is being checked twice to see if a reset pin...
While ota dfu via nrf toolbox android app, it sends wrong (0x15918) image size in start packet, and also bootloader starts writing softdevice image at address DFU_BANK_0_REGION_START...
Hi! I want to make a BLE network with 1 master (nRF51-DK) and multiples slaves (nRF51-dongle). I`ll send differents commands from master to slaves. This is for home automation...
Hello,
I am writing an application using SDK version 8.1 where I have a pin using the PORT event in nrf_drv_gpiote library. I have a need to disable the event temporarily...
I am encountering a problem with GPIOTE PORT events on the NRF51422 in a custom design. The chip occasionally seems to be able to get into a state in which the registers are...
Hello Guys,
I successfully used ble_hids_mouse and ble_hids_keyboard on my hardware but my final solution is a mouse + keyboard combo.
I merged the mouse and keyboard...
Hello,
I want to secure a link between 2 NRF51 (man in the middle and privacy with AES).
How to do that ? (I can use a static key in this application)
Most of the...
I want to create a single hex file that I can use to program the SD, DFU, and my application. I know I can use mergehex.exe to merge these files. To make it so that the bootloader...
Can anyone pls explain what is relation between advertising interval and advertising timeout..
Consider now i am setting advertising interval 1 second how i can prove or...
Hi Nordic,
I have got two PCA10028 boards and have a problem starting BLE on both.
I use latest Keil (5.16) and try to start ble_app_uart_s110_pca10028/ble_app_uart_s130_pca10028...
