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 Dev team,
I have an application working on the Thingy91 that sends the data of the sensors through MQTT to our server. I was interested in knowing the data usage of the...
Hi All!
I'd like to ask if anybody succeeded running zephyr without optimizations?
For ex. i have a following code:
Now i have following problems: 1) If i set...
Hi,
We got carrier frequency tolerance failure in a certification test.
The max deviation should be under 20ppm, but the result is above 30.
We used DTM example...
I'm working in a project where I have to use produce a PWM signal which actively drives the pin low for 0, and disconnects the pin for 1. The PWM is generated by an in house...
Dear Members,
For checking my LF 32KHz crystal is working,
XL2 is the output of the crystal ? or vise versa ?
So XL2 to the scope and the other probe to the ground...
Greetings,
I'm trying to develop a project on the nRF5340 DK where I collect measurement data from an I2C sensor (LPS27HHW) before sending the data via bluetooth. My firts...
Hello i'm trying to run a sample from my projects but each time i'm getting the CMake error i tried changing project and running from another directory but the problem still...
Hello,
we try to add DTLS to the CoAP client example . We have problems with the DTLS connection. The handshake with PSK works. The first CON or NON query works also without...
Hi! I developed a locator and beacon pcb boards for AoA direction finding using the NRF52811 chip. The locator has 4 patch antennas and the SKY13575-639LF external antenna...
Dear Members,
I want to use MAX17048 and getting thiis message :
<error> app: ERROR 33281 [NRF_ERROR_DRV_TWI_ERR_ANACK] at ..\..\..\MAX17048.c:71
void MAX17048_init_i2c...
I have found an issue with ESB/Nordic radio where it will receive a packet on the wrong pipe. I think the issue occurs when the prefix array set to the PREFIX registers contains...
While testing our custom Hardware with the nRF52840 in a climate chamber in the -40°C to +85°C range i noticed that the value read from the internal temperature sensor was...
Hello,
let me explain my problem as below.
after doing pairing between nrf52832 and phone(android app). phone is central (including scan behavior)...
after success...
Hi,
I'm using SLM app (on nRF9160 module) and I want to find a way to send a data (any data) to a server.
Can someone help to provide an AT commands sequence for that...
