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...
Hey,
I use ESB protocol on nrf51822. I am using one Pipe currently I can achieve only 183 Kbps, I read that i can achieve 1Mbps data rate if we use ESB. I have few questions...
I understand that it is possible to set a static passkey on the nRF51822.
However, what I would like to do is handle the verification of the user-entered passkey myself...
Hello all,
I am completely new to BLE and would like to make a sensor network with nRF51822 ( 1x S120 as center node and 8x S110 as slaves) I have been reading the content...
I am trying to make my NRF 51 advertise forever till someone connects. I have based myself on the ble_uart example where it uses fast advertising with 40 ms intervals for...
Hi,
Last year, I heard that nordic semi will release a SoftDevice for central that supports mulitple packets per interval time until June, 2015.
For now, I guess s120...
My understanding so far is that the input buffer of GPIO is disconnected by default and we can keep it disconnected for saving power when the pin is configured as output....
Hello,
I just read this paper "High speed data streaming with nRF24L01 " where we can achieve 1.6 Mbps Data Rate in clean RF environment. I am currently using nrf51822 in...
The documentation for ble_evt_hdr_t says that the evt_len field is
Length in octets excluding this header.
However as far as I can tell it's actually the length...
I am using BLE_Gateway example defined in nRF51-ble-bcast-mesh to create an rbc_mesh over 2 nRF51422 devices . For now, I am just testing it out on 2 nRF51422; I will set...
Hi,
I need to implement an application who acts like a GATT client and gets notification from a GATT Server (on smartphone) and then sends the information to a GATT Client...
I am wondering what is the lowest DBM/RSSI i should have to make sure my connection between devices is safe both with setting up a connection and datatransfer?
Hello,
I know it is not recommended to use SD8.0.0 and SDK8 on revision 1 ( QFAAC0 ) based modules.. But as it is for testing purpose only and would save me a lot of time...
When not programed bootloader,my own 51822 module can work without Development Board,i supply the power through the button cell to my module.
But when programed bootloader...
Hi,
I want to use ble_app_multilink_central example for my own application. Here are my problems:
Setting MIN and MAX CONN_INTERVAL to more-less 20ms or lower (both...
