I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
Hello,
I have some code running that transfers binary data from an iPhone to a nRF51822 device (used for firmware upgrade).
I have used a variable length characteristic...
When starting with nRFgo Studio "Erase all", "Program SoftDevice" & "Program Bootloader" to have a almost virgin base without an application, I succeed perform an over the...
Hello,
currently I am thinking about the proximity concept. The following scenario is given:
We have a Display that shoud lock/unlock a Device
We have a iPhone...
I used SDK 5.1 and S110 6.0, I dowmload the project ble_app_ancs to nRF51822 DK. I try to connect it to iPhone 4s (which run on IOS 7.04), when I click 'pairing', the led...
Device: NRF51822; BMA250E
Description:
When I read BMA250E via I2C without BLE protocol, commnucation run well.
And if there is no I2C commnucation, BLE protocol can...
Hi all,
My questions are related to frequency on the soft-device firmwares for nrf51822.
In S110 does the frequency channel hop according to the CONNECT_REQ packet...
Hello,
I am testing the ble_app_hrs project on two eval boards, with s110 and s120. Everything works.
If I power-off the peripheral board (s110), it seems that the master...
Dear Nordic guy, I'm developing with nrf51822.
I have one question regarding flash write.
In ble connected state,I have some error to write some data to flash.
I want to...
Hi,
I just loaded the nRF8001 Arduino code on my board and used an iPhone 5 to read the data that was being advertised. I get the following response:
<CBCentralManager...
Dear Nordic guy,I'm developing with nrf51822.
I have one question regarding lfclk.
I use LFCLK SOURCE RC OSCILATOR of ble_stack_handler_init() at the application side. ...
Hi,
Is there any example application related to alert notification profile for android 4.3 devices?
I just need to understand the gattserver implementation for the alert...
Hello All,
Since yesterday I have been getting a problem where my project using the S110 softdevice enters a reset loop. This runs on a unmodified PCA10001 that plugs into...
Hi,
I need to design a board that connects various sensor to a smartphone using the Bluetooth 4.0.
I'm interested in the NRF51822 chip but i have some doubt about what is...
Hi, I'm very new to programming microcontroller, so please go easy on me. :(
Firstly, apology if my post sounded weird, this is because English is not my first language...