Hi,my friend,
Now,I use nrf905.Situation is as follows:
I use the NRF PCB circuit of data manual.Nrf905 work, often loss of data.
1.The Product host is to use the stick...
Hi,
I want to use the Blend Micro with more security. I want use a passkey for the Bluetooth connection. For example through the iOS Device.
Is it possible? Static passkey...
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 everybody,
I want to do something very simple: Read some data from my Bluetooth peripheral. I know the UUID of the data I want to read, but I do not know the handle...
Hmm... this should be a simple question. But I haven't found a direct answer yet in the online SDK docs, the ARM NVIC docs, nor in this forum (and have only been confused...
Hi All,
I have a following setup :
The peripheral BLE device is supposed to send **(time critical )**data packets to Central device but the transfer is very rare (Can...
Hi,
I have modified slightly the OTA bootloader sample in SDK6.1 and SoftDevice 7.1.0. After flashing the bootloader code to the nrf51822 it works like charm, I can update...
when i use BLE_GAP_ADV_TYPE_ADV_DIRECT_IND mode,I can see the device advertise (MCP) but i couldn't able to connect with it (advertising_start at BLE_GAP_EVT_TIMEOUT)
i...
Hi,
I'm a beginner with bluetooth.
I'm actually working with nrf 51822 Evaluation board.
I want to realize a transparent mode of communication with your kit. Can you...
I never worked with Cortex M0 before so I wonder how it's possible to jump to correct IRQ handler when I have my own bootloader and application which are using e.g. UART IRQ...
Hi.
Where i can find some information and guidelines to do a good RF PCB with nrf51822?
thank you for your support
EDIT 02/02/2015
Where i can find " nRF51822 Reference...
Hi, I'm using my custom board with NordicSemi nRF51822-QFAA and J-Link.
(Softdevice S110 7.1, SDK 7.2, and using IAR for ARM 7.1)
I was testing the NUS example using...
Hi,
The examples provided seem to indicate that the NRF51822 needs to be attached to an application processor / CPU (e.g. - Raspberry Pi). How much resources (CPU cycles...
hardware:pca1001
software:s120 v2.0.0 sdk 6.1.0
i will get rssi value by connected by s120.so i update the s120 to v2.0.0. but when the app run, an error occur.[APPL...
Hello,
I am using the Sd130 (v0.9 alpha-1) and do experience a reboot with NRF_ERROR_INVALID_STATE.
I start advertising, then use another device to connect to it. After...
Hello,
where do the SD130 limitations come from. Is it the Bluetooth standard that limits a device to 3 connections as a master and one connection as a slave or is it a...
I am using latest (v 0.9) S130 and experiencing the following problem, the code below is located in the function which is called directly by the main():
uint32_t err_code;...
