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 increase MTU size for transfers and it works up to a size of about 72. After that I get an error.
Thanks to Sigurd I now know that it is when calling...
Hi, I've an application developed with SDK v8.0.0 and S110 v8, that is using the bootloader to start the main firmware and to start the DFU OTA (in case the user request to...
I currently have a problem with the gpiote setup. I'm using it to detect an interrupt from mma8652 accelerometer.
here is an annotated version with the key portions of...
Hi,
I've been trying to integrate the secure bootloader witrh SDK12 into my device, which had been working fine with the old bootloader and SDK11.
I've swapped everything...
Hello,
sd_softdevice_enable give me a hardfault every time. What can I do ?
Configuration:
Jlink / Ozone
Confirmed on 2 Sparkfun nRF52832 boards (nRF82832 AA rev 1...
Hello, I am trying a simple btle application where one mcu will send a "help" message and another will respond with its address. The mcu that asks for stores the address of...
Hello,
I would like to implement the nordic DFU protocol natively in a new app as I have historically found it tiresome and buggy to turn the DFU program into a library...
Hello, I am using eclipse app development, to achieve OTA function, use Maven to download DFU library, can not find the library, see your introduction： compile'no.nordicsemi...
I have a BLE circuit utilizing an NRF52832 cpu/integrated radio, necessary impedance matching network and a single ended micro-strip "L" antenna. How can I determine the gain...
I an trying to wake the chip and record the temperature readings when temperature reaches a certain threshold (eg: 80 deg C), can this be achieved using built-in temperature...
I debug the DFU Bootloader through UART,I am sure the APP code is complete updated,but the application does not run when the device is after bootloader to auto soft reset...
Hello:
I'm trying to get an example program ble_app_hrs running on my custom board, because earlier last month I couldn't write the cccd descriptor properly and I suspect...
i try to connect and read and write on my device with ionic2 BLE plugin , i can connect and also write on the device but when i try to read a data from device and use startNotification...
