How do I receive multiple signals simultaneously at a single receiver (433MHz) with multiple transmitters ?
I am working on a polling system. This one is similar to the audience...
Hello,
I established a connection between my central and peripheral module. Now i want to write characteristic value on peripheral. I tried with sd_ble_gattc_write function...
I am using the NRF24l01 for my products and looking to buy in bulk(100-1000). Now I know where to buy the just the IC but antenna design is a hard point to break right now...
Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hi!
I am fairly new to programming micro controllers so apologies if I ask many questions.
I am using NRF52832. The situation is this - I have 2 devices and 1 host . After...
Hi all,
I've found the nRF52840 with USB but it seems a bit OTT for our application, something more like the 51822 would be nice, but cannot identify one, can anyone list...
Hello!
I have a code that is working perfectly on Eclipse for Linux and I would like to copy it to a windows computer with keil. I created a new project with Keil copying...
Hi, I'm developping endless PWM sequence.
That is ...
Only one output pin and the signal from it is repeated with the same period of pulse but with two different duty...
Greetings,
I'm having some trouble using the secure DFU bootloader and buttonless DFU service in my application. The code for both of these has been taken from their respective...
nRF52 SDK13 S132.
For example, I have handle from 0x180A service.
I want to read characteristic 0x2A24 from here.
How should do it?
In the watch window I can see event...
We are interfacing to a SPI Flash MX25R8035F.
When attempting to read 1 page of 256 bytes from the chip we break the read command up into 4 SPI Commands.
1) Read the Status...
Hi,
I`ve made fixes in SDK 13.0.0 files described below:
nrf_section.h : to supress gcc warning: invalid suffix on literal; C++11 requires a space between literal and...
When I set the PWM driver for very low frequency i can see how it blinks, the thing is that it always blinks where it's more or less 70% of the time ON and 30% OFF .
When...
Hello,
Working on a project using the pairing and bonding security model, I would like to filter out of a central's scan all already bonded peripheral devices. Or, I could...
For some reason I get a softreset instead of a sleepmode when I call sd_power_system_off();
Device: NRF52832
SDK: 12.2
S132 v 3.0
I do clear all gpiote interrupts...
Hi, in our project, we need to apply 51822 as MCU to control other devices. But we need 2 USART ports. I wonder is there any product in nRF51 series that can do this. Thanks...
I got some SPI flash memory that is capable of generating interrupts in order to save some program/erase time and power consumption. The only drawback is that interrupt is...
hi,
the main function could not execute with softdevice. before it was working. but i have added some code that mean pstorage_store(). already, it has pstorage_load() and...
