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...
I'm looking for an example code of central role which can run on nRF52 DK.
I want to check if it is possible for nRF52 DK to send a LL_CONNECTION_UPDATE_REQ PDU to slave...
In general, I'm working on my own dfu-bootloader project which was developped on the "Engineering A" chip-revision of the nRF52832. We finally have new hardware with the chip...
Hi all,
I have use nRF5_SDK_11.0.0_89a8197 and S130 before and use nRF Toolbox to do switch it to bootloader and do OTA, just use one APP. However, now I'm using nRF5_SDK_12...
Hi,
I look at this demo,found that the ESB is PRX in most time, it may lead to a high power consumption.I want to achieve auto ack, piggybacking data in ACk from PRX.So the...
Hi all, I'm working on experimental_ble_app_buttonless_dfu project in sdk13-alpha using pca10040 board. I just compiled experimental_ble_app_buttonless_dfu successfully for...
Hello all,
I am implementing an energy efficient system, in which I am advertising in BLE_GAP_ADV_TYPE_ADV_SCAN_IND mode, I am using scan_req_report as an acknowledgement...
I'm trying to following example of nRF51_SDK_v12 OTA-DFU Example , but there are no support with BLE400 at all. (BLE 400 has nrf51822 QFACA1 1536EK Chip on it)
I think...
Hi Nordic Team,
Please I would like to ask how can I globally identify my device (nRF51822) based on its address?
Assuming that:
The address type of nRF51 is...
Hi all,
Is it possible to place your own antenna into nrf51822 bluetooth smart beacon kit? if it's possible, how am i going to do it?
am i suppose to remove the antenna...
I made a custom BLE device using nrf51822 and need to do DFU from remote place.
The BLE device is connected using USB to windows PC.
The Serial bootloader examples are...
I am using the nRF52840 Preview DK with BLE 5.0. In the BLE ATT_MTU Throughput Example,I use several api such as sd_ble_gatts_value_get and so on,but i still can not read...
Hello,
I'm using several gpiote interrupts in SDK 12.0.1.
I want to know the max number of low power input pins.
My configuration in sdk_config.h is like below.
thanks...
Hi,
I need to read more than 3 or 4 Bluetooth Heart Rate Sensors (like chest strap, arm band, and so on)... I need to do this using Arduino and some library.
Could someone...
I'm using the ble_app_hrs_adc_battery_measurement example ADC code in my project
However, I don't understand what these lines do
github.com/.../main.c
As far as I...
I am trying to add spi communication to the twi_master_with_twis_slave project because I need to communicate with two different sensors. I have included nrf_drv_spi.h and...
