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 trying to program nRF52832 custom circuit with nRF52 DK, I have connected debug out from the nRF52 DK to the custom circuit containing nRF52832 debug in. When I...
Hey Guys,
i am currently experimenting with the NFC functionality and have an issue with our "nrf52840-DK" boards:
i am testing with IAR (8.40.2 - including the library...
Hi there,
I'm trying to use serial library from SDK to interact with cellular modem (AT commands, not nRF9160). I've read documentation (library description, api). May be...
I have build and flashed the zephire/sample/bluetooth/hci_uart on nrf52840 board and connected the board with ubuntu but hci interface was not created when checked using hciconfig...
Hi,
We have chose LCD which has only 3-Wire support CS, CLK and DI so we have connected that pins with nRF51822 chipset. Now Please see the below image which shows that...
Hi All,
I want to read/write long characteristic (200 bytes max) from Android to my device.
I'm working on the 15.2.0 SDK and S140 Softdevice.
I read some Q&A on...
Hi there,
Right now I am doing some dry research into long range Coded PHY for S=8 or S=2 since I need to have some extra room in the link budget to go the distance. The...
Hi, I'm trying to adapt the ble_gateway example for nRF91dk to use a nRF52 instead a Thingy52. When I change the UUID at ble.c from Thingy to nRF52, I'm not able to get a...
Hello guys,
In next few months I've to put down a new design for a medical product. Both nRF52840 and nRF5340 would fit well the application requirements. But I think this...
I want to use two UARTS ie uart0 and uart1. I read that nrf51822 gpio pins can be set as rx & tx but i couldnt find any example.
I am using SDK12.3
Please attach some...
Hi,
I've looked around the DevZone for answers to this, and haven't quite seen an answer, so I'm going to post my solutions here.
I am using the secure bootloader from...
Hello
I have a use case of typical 3 key (lock / unlock / alarm) car remote lock key fob implementation. Since I already have nRF82810 / 840 based hardware designs that...
I was checking DFU through serial usb/uart on the following link:
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Fsdk_app_serial_dfu_bootloader.html...
I am using nordic nrf52 chip and nordic Soft Device. I observed that power level increases(ramps up ) before finally disconnecting. This behavior is observed when external...
