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 have nrf51422 dk. The boards I connect to 3.3V power and via jlink to my pc.
I use the JLink command line tool.
I can not access the chips. Erasing is not possible and...
Hi there,
I am using Eclipse and GCC (codesourcery) as development tools.
In the gcc makefile, once provided by Nordic with the "button_radio_example" are two lines...
Would the example github.com/.../require-encryption-5.1.0
compile without any extra configuration ?
I am trying to build it in a Keil uVision v.5.12.0.0, but I have some...
Hi,
I have an idea to implement BLE based access control application. I considered nRF51822 based Peripheral device & iOS application for central device
Both the Central...
We are in the process of creating our 2nd pass boards with following components to achieve good RF range>20 meters. We are considering discrete BALUN components and SMD Chip...
I see 5V pins on the schematic for the new nRF51 development kit. If I power the board via USB, I understand that 5V is regulated down to 3.3V for the chip. Is the source...
hi,
i'm gonna make 51822 enter low power consumption mode.Meanwhile it could be wake up by "GPIOTE_IRQHandler()"
1:Now,i know that "sd_power_system_off()" can make 51822...
What exactly does the PSTORAGE_LOAD_OP_CODE (0x03) mean? The documentation says ( online ) that it is an "Error when Load Operation was requested".
The code is pretty straightforward...
When I try to generate a log file by clicking Log File... in master control panel. The following error message comes up.
error_log_file.png
I would like to create a...
Hello dear Nordic community,
currently I am working on the NRF51822 Direct test mode (DTM). I tested the ble_app_dtm example and it works fine for me.
This means I can...
Hi,
I bought nRF51822 Evaluation Kit and would like to blue wire an external MCU( Kinetis Cortex-M) to talk to the SoC. It looks like the SoC on this board has many GPIOs...
Hi,
Could someone can explain, how to handle Static Passkey in iOS Central application?
I would like to know whether iOS application allows static key based pairing or not...
Hello,
i'm programming an iOS app to connect to the nRF51822 (peripheral). The Problem: Any kind of authentication and encryption is needed, but in the final Product the...
I've seeing random crashes at that originate from ll_lm.s0.c:404. It seems to be happening when I have uart logging turned off. I don't think i've seen assert callback called...
