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...
Hi,
My settings are:
NRF_DRV_SPI_FREQ_1M, NRF_DRV_SPI_MODE_2, NRF_DRV_SPI_BIT_ORDER_MSB_FIRST.
I'm trying to readback 0xD8. The proper value should be 0x71. Instead...
Hi,
I am trying to use the nrf52 in serialized mode, where I was successfully able to program the connectivity board (using SDK 11.0.0) However if I try to load any of the...
We are using a module which has nrf51822 on it. Before we have programmed it, we were able to see it when we scan for ble.
But after we program we could not able to detect...
I am building an automated test stand for programming our production devices. After programming, I need to pin-reset the device to leave debug mode so I can get an accurate...
We have an BLE application that we are targeting the nRF52 device for. The application demands using a UART interface to communicate to a host processor. In addition, we typically...
Hi all,
until now, I used nRF51 Chips on my board. I programed them trough the nRF51DK(PCA10028). But now I would like to work with nRF52832 Chip. I have a nRF52DK(PCA10040...
hi ..
i am new to mbed and nrf51.
softdevice is s130
if i enable the ADC in my project then other output(out3,4,5,6) is not working ok.
if ADC is not enabled then...
Thanks Stefan. The zip file making and updating steps work perfectly for me, if I follow your steps and make it from your stock pre-built "dfu_test_app_hrm_s132.hex". My question...
Hi
I have a problem when bootloading with nrf toolbox. It seems like when i flash files over 0x10000 in size the program overwrites itself. When i flash files with smaller...
I know this is somewhat "how long is a piece of string". I'm happy for guidance rather than solid numbers:
I'm trying to spec a "keep alive" circuit for an nRF51822 project...
In my S110 softdevice I want to accept connections only from centrals which passed OOB pairing.
My situation: There can be many centrals around my peripheral but only authorized...
We are trying to get an mBed-compiled hex file uploaded to production hardware but it is throwing the error "failed to read hex file".
The code is compiled for the nRF51...
Hello
I want to connect nRF51822 (on a readbearlab ble nano) to arduino micro which uses 5V logic on a 32U4 IC. I know I can use an external logic level shift, but I need...
In table 32 on page 25 of the NRF51 Reference Manual, there are a bunch of registers with the description "Reserved for Nordic firmware design" or "Reserved or Nordic hardware...
