My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
devzone.nordicsemi.com/.../
In this blog this is written:
"Opening and closing a connection event adds a lot of overhead"
how much is the overhead and where can i...
Hello,
I am currently developing a new bt-le-program and besides my own log-messages, I wanted to enable also the log-output that is happing in the files from the Nordic...
I'm building something based on ble_app_gls. However, I only want it to be pairable when I say so (user presses a button to put it into that mode). Is there a "correct" way...
Hi,
upon connection I get these messages via RTT:
nrf_ble_gatt:DEBUG:Peer on connection 0x0 requested an ATT MTU of 185 bytes.
nrf_ble_gatt:DEBUG:Updating ATT MTU to...
I would like to know how to dampen the effect of metal surface on BLE signal . Let me give you an instance, i am installing a wireless sensor inside a metal box and this sensor...
Hi,
I'm trying to make github.com/.../nrf52-spi-i2c-master-ssd1306 to compile with GCC (linux). So far I've managed to get it compiled, but linking fails:
mkdir _build...
Hi all,
I am using NRF51822 Bluetooth, which I am interfacing with the my microcontroller UART. when I dump the code into my Nordic NRF51822 BLE then it is only advertising...
Hi all, I have an Eclipse project in which I want to transfer packets of data bidirectionally between ESB and UART. The makefile includes both nrf_esb.c and app_timer.c (needed...
I'm working on a 2.4GHz wireless microphone (2T1R) project now. I'm wondering can I use nRF24L01+ as the core of transmitter and receiver? Also can it be configured into 2T1R...
So the question would be if I would need to pair each time the device comes out of reset or are there information stored to return to direct communication without pairing...
The chip uses nRF 52832. MDK keil μVision V 5.22.0.0 is used as the development environment.
The SDK version uses 13.0.0_04a 0 bfd.It is based on template_project.
1drv...
hi,
i have two nrf51822 beacons in which one would send data to other over ble.how can i make nrf51822 as central.what are the modifications should i do to make it central...
hello,
i want to know that which code i have to prefer for communication of nrf51822 with android phone via bluetooth.suggest me the code for using bluetooth of nrf51822...
Hi,
I expected a bit more fanfare for the BLE-based DFU, but eventually found it in the 4.4 SDK after my sales rep told me it was there ;)
Some questions:
(1) Is...
Hello.
Due to expanding code size because of the peer manager i m forced to move to gcc and Eclipse.
So far according to the tutorial i`m proceeding fine.
But, after...
