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...
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...
Hi
I cannot find the answers from your documents. Please help me answer them. Thanks.
DC supply voltage of core cell of nRF51822 chip?
DC supply voltage of IO pad...
I am using a modified sample of your rangedemo example and can get it to work. To test if I am switching to 915MHz I change the HFREQ to 1 but the receiver that is set to...
Hello
Im starting a new project and i wanted to save time by asking if there is a list of providers or company that produces sensors that will have an easy compatibility...
Hi,
I need to store an image of size 40kB to internal flash memory. Actually i tried to store it from the address like 0x28400 and 0x2E984 (memory addresses after softdevice...
Hi, I am developing an BLE application using nRF51822.
This question is from my previous question:
devzone.nordicsemi.com/.../question-about-adc-power-consumption
...
i have purchased one of the modules. i need to interface with other modules of the same kind but how will i start programming it ,can u people suggest me the IDE ? do i need...
Hi,
I try to modify 51822 device_firmware_updates code for 51422.
But I have a problem.
When I run my code, my cell phone can connect to 51422. I can click DFU button...
According to Page5 of nWP-018, if we compare QFAA G0 to C0, G0 doesn't have a valid version reference design with the right balun. But G0 and C0 have the same valid reference...
