Hi, is there an available developer in my tri-state area of Minnesota, N. Dakota, or S. Dakota? Please call me if you are available for a project for hire. The developer should...
I'm trying to design a very low power sensor that takes readings using ADC and SPI 200 times a second. I'm a bit worried by the current EasyDMA uses (1.1mA). As far as I can...
Hi, I am working on a project where I want to make one nrf51288 chip as central hub and connect that to a android phone and other salve nrf51288 .
idea similar to this: ...
Hi,
I have a code programming the nRF51422 development board to write to a Sharp Memory 96x96 pixel LCD screen using SPI.
Currently the code writes two numbers and a...
I've modified the ble_app_uart example by adding GPIOTE so that the transmitter sends a character to the receiver when a GPIO pin is toggled. This part is working well.
...
Hi,
I am working on my hardware product having nRF-51422 chipset. I just came to know from forum post that
nRF-52 chips will get arduino IDE support as standalone. I want...
Hi!
I've been using PCA10028 for a long time and I had some bricking issues but I've managed to un-brick it with "nrfjprog --recover" and everything would work again. ...
Hi,
I am struggling with I2S. While I was debugging my I2S data handler function, I found something interesting. I copy one element from a uint32 buffer into a (static...
Hello all!
Simple question: What is a SNR value for BT LE? I read 20 dB are OK, but I would like some sources/informations to back this number up.
Thanks!
Cheers...
I am using a custom nrf51822 board and S130.
I am trying to pull data from a sensor over SPI and then immediately send that data over SPIS to another processor. Is this...
While trying to implement a simple qdec demo application, I find that QDEC_SAMPLEPER_SAMPLEPER_512us above works ok, yet QDEC_SAMPLEPER_SAMPLEPER_256us does not work at all...
I have a case where I'm using a timer/counter as a counter with one PPI channel routing a GPIO rising edge to the COUNT task. Another GPIO rising event controls the counting...
I have an nRF52 paired to a central device. In order to delete the pairing on the nRF52 I clear the persistent data (dm_init_param_t).
I notice, however, that even though...
Hi all,
I'm a grad student trying to innovate on the BLE concept. I require a continuous signal as a source: preferably unmodulated, but a long duty cycle could also work...
The NRF52 product specification (aka, datasheet) has 3 chapters in it all relating to TWI: TWI (chapter 49), TWIM (chapter 33), and TWIS (chapter 34).
Which section (TWI...
Hi,
I'm trying to interface SIM808 with nrf51822 over uart using nrf_drv_uart. Everything works well for some time, but then uart starts reporting error code 1, NRF_UART_ERROR_PARITY_MASK...
Hello,
I am working with the GPIOTE library to get a GPIOTE_IRQ from a peripheral.
I have several questions regarding the library and how IRQ works.
1.How do I clear...
Hello,
I am using SDK7.1.0 for NRF51822.
In my subroutine, I would like to disconnect with the peer device, and re-advertise. But when after re-advertising, I found the...
Is it possible to set scope for search in info-center only for SDK 11? It search in all SDK versions and sorts results randomly. It is very annoying. Especially when there...
Hi,
I want to build expertise in BLE and want to use the Nordic nRF51x22 to build a hardware and write the firmware for the same.
I am planning to use the nRF51 DK....
I'm calling sd_ble_gatts_characteristic_add multiple times to add characteristics to a peripheral. At some point I get a return value of 0x200020B6. I'm not making much headway...
