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...
In our testing we encounter some devices (Centrals with nrf52832), where the peer manager event PM_EVT_BONDED_PEER_CONNECTED contains a invalid peer id 0x4000 (allowed values...
I have a device the uses MSP430f169 and CC2500 RF controller for communication I need to replace the CC2500 RF controller with nRF51422 device.
As I understand an nRF51422...
Hi,
I develop application on MBED platform with NRF52-DK. I figure out that pin "logic" on this board is interchanged. For example. I have LED connected to some pin. When...
Hello,
on my custom board I am trying to use pin P0.09 and P0.010 for interrupt-purposes. So I integrated the necessary adjustments as mentioned in this topic here , which...
Hi,
I develop application using BLE.
In my scenario two NRF52832 operate in two different roles (Client and Server).
I have ready to run app (as server) and can communicate...
Hi,
When I call nrf_drv_spi_transfer to transfer 250 bytes in non-blocking mode, it takes 1.1ms. Is this normal? Any workaround? If it is normal then I have to split my...
My android app give me this "register with gatt stack failed" error on Samsung S7 marshmallow. The scenario is that I am working with 21 BLE peripherals (nrf52). I scan available...
hello dear Engineers!
I Prepare PCB to produce, so have some question about QSPI pins.
According to the "52.10 Registers" , it is possible to Assign any pins to QSPI...
Hey, I have my nrf 52 dk. I have soft device v3 on my nrf 52.
I was doing a blinky test with two boards (one central and one peripheral)
I was just wondering how to...
I have two sensor: Si7021 and CCS811 connect to board (nRF51 DK).
Si7021 work fine.
CCS811 always return NRF_DRV_TWI_EVT_ADDRESS_NACK error.
Anyone can give me a help?
Hi,
I'm trying to setup NRF52 with a microphone (ICS-43432) using I2S and easyDMA. I'm new to embedded software development, and would very much appreciate your help and...
Hi,
I am really new to the Nordic products and programming for that matters. But, the thing is that I am in somewhat of a hurry. I would like to use a similar code to below...
Hi all. I am sending to BLE device AE A7 04 00 05 09 BC B7 command, getting status 0 ( success ), but do not get any updates or notifications from BLE at all. So am I doing...
I've compiled the secured DFU bootloader (from SDK 12.2) and loaded it on my board. But whenever I run my firmware, it won't start (none of the expected interaction happens...
Hi there,
As the title says, i'm tring to add nus service to the freertos example (board PCA10040, SD 132, SDK 12). Actually, I want to mix it with the peripherical app_uart...
