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 am using nRF52840, SDK_16.0.0, SoftDevice S140 V7.0.1 and Segger for flashing the image. I am using ‘ble_app_blinky’.
I want to send packet with different...
Hi,
In our project we are using the adc pin (p02) for batttery level measurement.
The analog dc signal from the battery is connected to p02 pin after the voltage is...
Hello,
Our peripheral device has no keyboard and no display.
Yet we would still like to have the most secured way of communication.
For our application, we don't like...
Apologies for the newbie question. Does this BLE Module need a separate antenna to be purchased? Or are you supposed to design your own with PCB traces? Some BLE modules have...
I want to avoid the soldering of the inside (Becoz of production isse) pins that's why I'm using all the outer pins of the ic. But the problem is RESET pin is inside so can...
Hello,
I am using UART_1 in my program to comminicate with other sensor. So the data is read from UART_1 and print to UART_0. Now I want to communicate with other sensor...
Hi, I am using BMD301 chip on my custom board which schematic i have shown below,I need to enable UART as well as nrf_log in my application. For this I am using SDK 15.3 PCA10040...
I am getting small power spikes but cant seem to pinpoint what is causing them.
The smaller spikes in between the transmissions. (The wave is clipped from the top so the...
Hello,
Has there been any success with getting the python bindings for the pc-ble-driver running on openwrt? I've succeeded with the driver itself but not the bindings....
So with the errata in mind the RC oscillator has a accuracy of +/-500 ppm, while the XTAL on the nRF52 DK has a accuracy of +/-20 ppm. During the longest waiting period of...
I have your full eval board as well, I also have multiple NB_IoT sims from Vodafone but have not tried them yet. How do I get your Thingy:91 unit with your sim running please...
Hello,
I want to implement a data logger that will save events in an external flash (even if i think i will start with the FDS). My purpose is to identify some behavior...
Hello,
I am looking to start an independent project this month. One of the tasks will be to use BLE to relay information from a custom PCB board with the nRF52810 chip...
