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...
I am currently designing a board using the nRF51822 chip and I would like to implement a soft power ON circuit using the low power comparator (LPCOMP).
I understand that...
Hello,
I'm using a code posted on this forum to read ADC input and fill an array with the ADC values but I always get values between 166 and 174, (even if I connect the ADC...
I'm completely out of ideas.
I've been developing a server for some time now based loosely on the ble_app_hrs sample using the 5.2.1 SD. Things have been going reasonably...
After I process some data (command) received by UART fifo module (I have installed handler for APP_UART_DATA_READY) I need to do a short atomic operation of a few instructions...
We have a project where we would like to use a balanced / dipole pcb antenna. As far as the great docs on the site stands, it's all for unbalanced / monopole antennas. Any...
Hi,
In my application I need to control a nrf51822 central device by an external MCU.
Does Nordic provide solutions to control a nrf51822 Cental device (with S120 softdevice...
Is there a register, accessible via the SWD-DP and present across ARM devices, that I can use to distinguish the nRF51822 from other microcontrollers?
Thanks,
-c
I can discover RFduino BLE devices that use the 51822 using the Master Control Panel but cannot with the nRFTemp app. The nRFTemp app scans for but does not find my RFduino...
Hi,
I have nRFStartet Kit, nRF51822DK and EK.
What is nRF2739? I am just following the setup section in nRF51SDK and it says to connect Master Emulator to PC. Is it...
Hello,
I have been attempting to get the watchdog timer working in my project without any success. I have read through all of the watch dog related threads that I could...
The S120 is a pure Central softdevice, and hence it can connect only to other Peripheral devices. Does it means that s120 cannot be used as a peripherial device?
Hello all,
I have been using nrf905 for about 5 years without problems.
now I would like to ask if is there any way to use an external PA? I am not a RF engineer and i...
Hello,
I've an issue only on IOS. My custom service is recognized as immediate alert and crash when we want to use it. It works fine on android and with Master Control...
Hi - I'm trying to use the pure-gcc make files and I've got my project building and the code is running, but when I try to launch startdebug gdb it reports no debugging symbols...
