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 folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hi,
I'm using the attached circuit and we recently took our product to FCC testing and failed the 2nd harmonic because we were transmitting too much power.
I'd like...
Hi All,
We have been working on Arduino Mega board with BLE shield. We want to get the address of the BLE shield and we are using aci library for that.
I found this...
I'm in the process of designing a consumer product using the nRF51822. I'm using the "square wave" antenna and matching circuit exactly as the are in the development kits...
Hello,
we are based in Germany and need a way to mass-programme the nrf51822 for production with our custom firmware+the softdevice.
Unfortunately we haven't found any...
Hi
I am writing an application that will have to switch the radio in between a number of different modes. (With/without AutoAck, and with/without dpl).
I have been looking...
Hello,
according to the documenation, the function sd_ant_burst_handler_request() can return with the error code NRF_ANT_ERROR_MESSAGE_SIZE_EXCEEDS_LIMIT. When will the...
Hi,
I was thinking if it is possible to use, per example HackRF greatscottgadgets.com/.../ , to tune the antena of the nRF15822 seeing if it is transmiting on the 2.4Ghz...
Hello,
We developed the energy harvest application equipment with the HRM1017 module.
The function is every simply as follows:
After initialization, CPU scans 4 I/O ports...
Hi,
I am searching for a way to disable then re-enable the BLE packet transmission on PTU.
This is for testing the A4WP conformance test PRU/PC/GR/Link.
"Disable the...
Hi,
I just got an Arduino and a BLE shield. I was following the Smart Starter Kit. The demo project have me errors, so I just started using the proximity example, and editing...
Hi,
I am using the nrf8001 module provided by adafruit ( www.adafruit.com/.../1697) but it's not clear if the RDY and REQ pins available on the chip are active low or not...
I have made a small device composed by
SD310-1.0, boootloader and application. The device is sealed to be waterproofed and has a serial conenction used by the custom bootloader...
I've been working with SDK 7.1 and I am struggling to understand how to get the makefile working with an NRF51822-QFAA device rather than a nRF51422-QFAC. I have samples of...
