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 all,
After several tests about extending Timeslot, I have some questions.
I found out that the Timeslot will keep extending automatically after a successful...
Just a beginners question. I've read about central, peripheral, client, server, but i am still not sure how to choose. I use nrf51822
I want to create a beacon that has...
Hello,
I am currently working on an ultra-low power project that requires reading an I2C accelerometer multiple times per second. After analyzing the current consumption...
Hello,
we've got a problem with iOS 10 connecting to a peripheral using nrf51822 with S110. When bonding an iOS device to the peripheral the first time it works o.k. If...
Hi,
I am using BMD300 to develop my projects. I am working on SAADC sample example in SDK12.0.0. I am sampling the SAADC at a rate og 1000 sps. following is the saadc_ini...
Hi,
I want to set the reset bit to 1 in the reset register of Power Management module.
Chip used in nrf51822.
I have been trying to set the bit using the following statement...
how to send hex by nrftoolbox APP uart?
I use this app, when I start use it, I just only can send char, I can't send hex to the device. how to set it char to hex? please...
I am using the Nordic nRF51 SDK on a BLE Nano device. The example I am using uses a function to initialize the LED flashing (bsp_init()). This sets the timing for the ticks...
Hi all,
I want to use nRF51822 (s110) to measure the frequency (0 to 5kHz) of a signal connected to an analog input. Other posts ( like this ) show that a good way to implement...
Hi,
SDK:8.1.0
Chip:nrf51822
Power Mode:LDO
Battery:CR2450
Application:beacon
The equipment static power consumption is 3.3 ua, after a period of time is 1.9 ma,but...
I'm using Keil5 to compile example of SDK v12.2. And I'm trying to understand each of Source code to understand how each of it is consists of.
I opened an example "SDK...
My code hit weak handler when I try to modify the examples/peripheral/saadc to run with softdevice s140 on nrf82840 PDK. All I did was adding a BLE Stack initialization before...
On the nRF52832, what is the longest period of time that the softdevice will control the CPU while doing things with Bluetooth? This is effectively the interrupt latency time...
I am working on nRF51 and nRF52 series SoC.
I need to check whether my radio device is connected or not and also to test radio functionality(like radio range, sensitivity...
