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...
Hello,
I work on module BLE LAIRD BL652 and I'm a BLE peripheral. I have tried to make a BASIC program for advertising while in a connection but without success.
As...
Hi,
i am creating a new project iar workbench 7.8 with SDK V8.1.0 and softdevice V8.0.0 using custom board nrf51822 ic revision 3 (QFAAH00),clock source as "NRF_CLOCK_LFCLKSRC_RC_250_PPM_8000MS_CALIBRATION...
Hello Sir,
I am designing PCB using nRF52832 SoC it is very small and operated on AA battery source.
So please recommend me for reverse battery voltage protection diode...
Hi Guys,
Me again. I was thinking someone could provide some suggestions on my understanding of the BLE connection ( porfile, GATT, characteristic,value, etc...)
I finished...
I had successfully write a structure data to fds. After which, I would like to update the same file and record key with new values of a structure. After updating, I will read...
Imagine I have developed a MESH made up of 50 Relay Nodes and I say only Relay Nodes because any of them must be able to relay and also able to initiate a message. In my application...
Hi,
I am making a GPS tracking system using NRF51822-QFAC. I am using 2 UARTs, one of the (external) GPRS IC and one for (external) RS485 communication.
The UART peripheral...
HI,
I tried to compile Thingy v2.1.0 with keil. And sereval file are missing.
Actually i work with your SDK 14.0.0, i find so many missing file, but not all.
Can...
Hi,
I am currently testing with a USB MSC example .
FATFS_QSPI is disabled because the file system is not used,
Subclass has also been modified to 0x06 -> 0xFF.
...
Hi,
I am implementing experimental_bootloader_secure_usb code example on PDK PCA10056 V0.9.2 using Sdk v14.0 and also tested with Sdk v14.2 but in both cases Windows 10...
With SD140 v6.0.0.6 having been released, will an accompanying example project that demonstrates simultaneous use of BLE and USB be released? Will this be included in the...
Dear devzone,
I am currently merging the Mesh SDK into the normal SDK to run BLE & BL mesh concurrently.
Followed multiple guides to get it working, at this moment I am...
I use nrf52832 development kit,nRF5 SDK for homekit.
Now I have read and write to UUID, want to realize how to handle the notification operation, and call what API?What are...
I enter to bootloader via my app by UART command:
err_code = sd_power_gpregret_clr(0, 0xffffffff);
APP_ERROR_CHECK(err_code);
err_code = sd_power_gpregret_set(0, 0xB1...
I know nothing about bluetooth
like ble_app_uart , uart to where?how to use this uart?
like ble_app_alert_notification, alert? beep? vibrator?
any tutorial of develop...
