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 currently trying to set up the HTTP Application Update Sample and unfortunately it keeps stopping at the "downloading" state. Code is exactly the same from the...
Hi,
I´m using nrf52840 with softdevice S132 and set ble_gattc_conn_cfg_t::write_cmd_tx_queue_size to larger than 1. I´m count number of queued writes by increasing a counter...
I am currently developing with nrf52832 sdk14.2. I found in the test that after opening the hid service, the connection parameters will become the following parameters after...
I encountered a scenario where I call sd_ble_gap_connect() and get an event BLE_GAP_EVT_TIMEOUT with source BLE_GAP_TIMEOUT_SRC_CONN . This is followed immediately by an event...
Hi, i have written code in android, where i am using threads to connect to 832 ble over insecure RFComm socket..
Am not pairing with 832 in my app and am directly trying...
Hi I am implementing a buttonless_DFU function right now. I decided to do Buttonless on my project's PCB Board because it is no longer an environment where I can add switches...
My setup is as follows:
nRF5 SDK 13.1 with s132 5.1.0
nRF52832_AA
Keil 5.25pre
I use RTC1 counter for timestamping along with app_timer timers. My get_timestamp() function...
I am trying to send lots of data through radio (basing on old micro esb project from github, but heavily modified).
I need to keep radio IDLE (not DISABLED) when not transmitting...
Hi,
I am developing smartphone controlled BLE door lock based on nRF52840.
The door lock is a peripheral (also GATT server) and the smartphone is central (GATT client...
Using the nRF52840 with SDK15.3.0 and S140, I am seeing strange interactions between PWM and BLE.
The PWM is configured to create a continuous 175kHz output just under...
I am currently developing with nrf52832 sdk14.2. When nrf52832 is bound to a different iphone connection, if the stored binding record of nrf52832 is already full, will the...
Hello,
We require a bluetooth low energy IC with MCU. Right now we are testing with nrf51422 development board. Could you please suggest any updated ICs with (BLE+MCU) ...
Hi
Below picture and attached file is my 52810 hardware.
All the component are accord with the 52810 data sheet.
But, when I download the BLE blinky project from the...
Hi I am currently testing Buttonless DFU using SDK 12.3, nRF52832 DK. Example test was conducted first using the DK board, but as you can see in the picture, it will fail...
Hi,
I have a MQTT-sample based application running and everything works fine. If I supply the DK through a USB cable connected with my computer, LED 5 blinks high frequently...
