why use 50ms and 400ms connection interval for testing the maximum data throughput(2M,247byte payload)?
Because 50ms can only send a pdu , and 400ms can send up to 8 pdu...
Hi,
I am using Keil IDE to develop nRF51822 project.
in main(), the command line
APP_SCHED_INIT(APP_SCHED_MAX_EVT_SIZE, APP_SCHED_QUEUE_SIZE);
has Error : L6218E...
Hello,
I'm new to the Nordic SDK and I would like to ask you for help with implementation of PORT events for revision < 3 in "low power" mode instead of "high power" mode...
Hi Nordic,
I've built a ble app with a custom protocol, but am struggling with storing bonds, when running under freeRtos.
What I see:
central app crashes (hardfault...
Hello All,
I am new to this forum, I have been using nRF51822 for a while, and its a great little BLE chip. I am usinga BLE keyboard to send a key to iphone and I captured...
I WANT COMMUNICATION BETWEEN A NRF51422 AND NRF528321 BOARDS, IN WHICH IN NRF51422 BOARD I WILL MEASURE PWM COUNT(IT IS PHERIPHERAL) AND SEND IT TO NRF528321 BOARD WHICH IS...
Hi,
I've been working on a way to detect and prevent replay attacks when beacons are used for sensor data. This is mostly used for home automation sensors, where I have BLE...
Hello everyone, I'm severely struggling to perform a simple task. I must be missing a very simple answer and, I hope with your help that I resolve the issue.
I am trying...
I want to send a data of length 1024 bytes over the ble UART , but the maximum length of data is 20 bytes at a time. Is it possible to increase the data length per instance...
Hello!
I try to use "ble_default_bootloader_app.hex" with my app to allow OTA option for my device. (nrf51822 and SDK 7.2.0) With NRFToolbox I can connect to the device ...
Hi all,
How can it be that sd_ble_gatts_sys_attr_set function returns BLE_ERROR_GATTS_SYS_ATTR_MISSING?
With the first and second connect it returns success but the...
I saw that each CCCD or sys_attr should be persisted per connection, does it mean it should be saved on flash to be restored during next connection for same device ?
and...
If iOS of BLE master sends 4 packets of the same write characteristics with MD bit in the same connection event, how does SoftDevice of BLE slave work?
The ble_event_handler...
Is there a summary of potential pitfalls, i.e. issues which are asked repeatedly by users in these forums regarding HW/Schematic/PCB design for NRF BLE chipsets. Making mistakes...
I just published my port of a new FreeRTOS operating system version for the nRF51x22 and the nRF51 SDK 8.x.x to github.com/.../freertos_nrf51 , the README is copied below...
I am trying to implement some write to flash, and started by integrating the relevant functions from the example code I found in this thread .
I added a dummy write function...
Hello,
I'm building an aplication with multiple nRF51822 beacon modules. I'm using dual mode S130 softdevice. Sometimes, when beacon recieves a lot of messages, and forwards...
I'm trying to erase the page 32 of a nRF24LU1+ via SPI (using a Bus Pirate).
What I did so far:
Display the first 16 bytes of content of page 32: 0x03 0x40 0x00 0x10...
I have a switch connected on the nRF51DK Board. The switch is connected on PIN25 and PIN 28. I try to read the state of the switch.
My setup:
-nRF51DK
-SDK8.1
...
Hi
I am making some low-power wireless sensors powered by coin cells, which will sleep for long intervals between readings/transmits. I am using the micro ESB libraries...
