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 using:
DK52
SDK 11
Softdevice S132 2.0.0
I have initialized my service as follows:
#define BLE_UUID_BASE_UUID {0x05, 0x00, 0x00, 0x00, 0x00, 0x00...
I migrate a project from keil to IAR, at the moment of bulding im facing this error:
arm_startup_nrf51.s
Error in command line: Invalid argument to option '-D'
Error...
We did initial work on the NRF51DK (PCA_10028).
We are using SDK 12 and ARM-GCC.
We were able to compile and run successfully the experimental_ble_app_blinky and connect...
I'm attempting to make a sense of app_gpiote.c (in SDK 11) to see if it's suitable for my application and I can't find a match between the documentation, the sample code and...
Hi,
I am trying to use app_timer (had this working in isolation like I wanted) and esb (also had this working by itself) in the same binary. They both implement SWI0_IRQHandler...
Using nRF51822.
I use external DCDC to supply concurrent 3.1V for VDD(PIN1).
Then I have no way to check bettery level.
So I connect battery and AIN4(p0.03) separately...
Hi,
This seems to be an issue that pops up often. However, I wasn't able to find an answer here in the Nordic forum.
What I have:
a number of vendor services ...
I'm trying to change the SD version number of a test-S132-file, soI can "see" that the DFU was successful in my app. I can already read the current version (from 0x300C in...
Does anyone had controlled LoRa module with nRF5x??
I have nRF51822(BLE400(PCA10001)), nRF52832(PCA10040) and Semtch SX1276RF1JAS.
I hope to control LoRa module using nRF...
Hello All,
I am looking for a stand alone small transmitter/receiver that can be powered from a watch battery with a range of at least 300m. Is any of the nordic solutions...
hi,
i am working on code which require to store data array of 20x20 to store in flash area using FDS or any other possibilities.
1)i confused with FDS concept. how i can...
Hi,
we are now in the second round of prototyping - we'd like to move away from the chip-antenna based design to a PCB antenna. We have come up with two different ideas...
Here
My device (chip nrf51822_xxAA) exist softdevice 8.0.3 and BLE uart application work fine which flash by the ST-link in Keil MDK(5.20).
Now I try to add bootloader to...
Hello
I've found your example in the dev-zone and migrate the project to SDK10 and will probably do the same for SDK11.
However, I've got a problem in my project. When...
hi,
i want to implement rtxos in my nrf52832 application. one of the nrf52832's feature is ARM Cortex -M4 32-bit processor with FPU, 64 MHz.
my question is, why the...
