Hello,
I have an NRF51822 (redbealab ble nano) that I would like to use to count pulses in very low power mode.
Pulses are asynchronous
The rate of pulses can...
Hi
I'm attempting to read a PT-100 sensor value that is part of a voltage divider using a nRF52.
Both the reference resistor and the PT-100 is sampled while the voltage...
Hi
I have been searching the forums, but were not able to find an answer to my question.
I'm trying to sample 4 analog inputs on the nRF51-DK using the ADC hal. (SDK10...
Hi
I have been trying to get two NRF24L01 chips communicate with each other since a week now, without much success. All what I can find on the net is Arduino examples using...
Hi
I have done several projects with the nRF905. I know the device quite well. Normally I use the CD, AM and DR interrupt pins to determine the status of the device, my current...
i made this project to try to create RSC service on arduino
developer.bluetooth.org/.../runningspeedandcadence.zip
unfortunately the server starts but i'm not able to...
Hello,
Could someone give me a hint with the following problem?
I am using two example projects (ble_app_uart_c, ble_app_hrs) to connect a central and a peripheral.
An...
Hello,
I have some questions regarding bluetooth low energy and the NRF51 series.
[list=1]1) I have to synchronise maximum 17 sensors, so i will maximum need 4 masters...
Hi.
I am looking for the internal resistance of the ADC pin of my nrf51822. I have looked at the Product Specifications (as well as the Reference Manual and other documents...
I find it unstable to send hid data, even if I set timer 1 every 8ms to send hid data.
I can catch data bag from wireshark it seems that interval of two data even close...
Hi All:
The hardware is working perfectly up until I changed some codes in the program and load it on the chip then I am unable to program again. The error message is:...
1.Size of EPROM. Is it big enough for our program as well as our data file for the whole day?
2.How can we secure the EPROM so that no one else can overwrite our code or...
We have an application that is an apple ibeacon, plus some extra properties that can be read (battery level for example)
The "ibeacon profile" eats up all the space in the...
Hi Guys,
i'm a newbie, trying to get the heart rate demo project working.
I've connected the nRF8001 to my own hardware, using a PIC processor.
i'm able to connect...
Hi,
I have a question about the service profile (ex:heart rate service, battery service,etc...), these services are based on protocol of IEEE11073-20601? Actually, I want...
See subject. The softdevice is currently installed on the chip (v6.0.0-1.alpha)
I searched online, and found some information that the security state of the chip has been...
Hi all,
When I receive data from the phone app, I do it via this service handler (and it works):
err_code = ble_services_init(&my_device_service, ble_receive_handler...
error:-559038737 ...line:1128 file_name:src\ll_lm.s0.c
And I can't find this file, so can somebody help?
Why this happen? How can I do to avoid this？ It will cause reboot...
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...
Hi
I would like to use the arm based energy micro MCU to update 51422 via UART
I've understood how the firmware update example with hci, but I need a set of hci api to...
Hello,
I in the nRF8002 data sheet it mentions a Programming tool for the nRF8002. Can you please send me the partnumber of this tool? Also, if a programming house wishes...
