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...
Basically I used below function for sending 1 byte of data with bluetooth and it is working completely fine.
static void test_service_on_ble_write(ble_os_t *p_service,...
Hi,
I need to send some data but this should be done compressed using gzip or deflate algorithms (like in http). I have been searching for some info about the possibility...
Hi,
It's my first post here so let introduce myself : I'm a 25 y.o. French electronics engineer and hobbyist. I also like skating (inline skates and ice skates) mainly...
Hi, I was trying to create an NUS (Nordic UART Service) application for iOS 10 devices using Swift 3.
I was testing with my
iPhone 6 Plus 64GB (iOS 10.2.1)
...
Hello,
I am working on nRF52832, In my application I have added base UUID, service UUID and two characteristic UUIDs.
Please send me any example code for adding two...
Hello to all embedded jedi-masters out there!
I need your guidance.
I have a general product design question: I was wondering on what would be the best practice for...
Hi,
I am facing some problem with openocd and stlink connection.
I saw some dve. boards having USB<->serial converter on board for programming (i guess).
So, i got...
Hi,
I have install openocd on ubuntu. but i after running next line
openocd -f interface/stlink-v2.cfg cfg -f target/nrf51_stlink.tcl
i got these error.
Runtime...
Hi,
I'm trying to modify one of the examples (the hrs_relay) to find my custom service to identify the device uniquely. I know I need to add the 128bit uuid using and then...
I'm trying to transmit a radio signal inside time slot handler, the code is like:
switch (signal_type)
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_START:
radio_configure...
I'm working with nrf52832 dev board. I used nRF Connect app for IOS but my phone run on IOS8.4.1, so i can't get it from apple appstore. Someone can help me by give version...
This system does not work if I enable the third Pipe (Pipe2) .
The system is working without any problem as one RX and two TX (Pipe0 and Pipe1).
The problem on enabling...
Hi there,
I'm using nrf51822 timer1 as the timer for some time-critical task, and I'd like to ask two questions about it:
What's the precision of Timer1 if the...
Hi
I am using nRF51822 (pca10001).I am unable to discover my device. I used the ble_app_template_s130_pca10028 as my base and added the code for gpiote handler as following...
