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,
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...
Hi,
I am very new to nRF51822 controller. i got some problem with compilation.
i have downloaded SDK v10.0xx and tried to compile blink example from following path.
...
Using Segger Embedded Studio 310i in Linux and SDK12.2.0, I imported the Beacon example project (ble_peripheral/ble_app_beacon) from Keil. Right now I'm trying to make it...
Hello everybody,
RTC0 is used by the SoftDevice. Is it possible to use the current RTC0 counter value as a system time, so that RTC1 doesn't have to run additionally? For...
I created a service with several characteristic values. I can read the values without any problem with the Master Control Panel on my Android tablet, but reading from the...
I am working with nrf51, SDK 11, S130, Keil uVision 5 and have an Application with RTX and want to use DFU OTA.
The bootloader works with the app_hrs_dfu example.
When...
Hi, I tried to enable non-connectable advertising timeout using the macro APP_CFG_NON_CONN_ADV_TIMEOUT in es_app_config.h, but it has no effect. I test this using nRF connect...
Hello,
When I call TASK_START in SPI Master it does not start a transfer. According to registers all seems to be set.
I found what was the problem. When I called TASKS_SUSPEND...
I am using SDk 11. S130 V2.0
What is the equivalent of spi_master_evt_handler_reg ?
I just want to configure my handler to receive the interrupt of the SPI master.
Please...
Hello, I've just purchased nRF52 dev kit and I'm using ble_app_uart example from SDK_12.2 to send/receive data from one pc (which is connected to the dev kit through usb)...
I have been trying to use nRF5 SDK 12 on nRF52 Preview DK by using PCA10040 instead of the removed PCA10036. But example 'ble_app_hrs' that uses SoftDevice S132 v3.0 do not...
Hello,
I am developing a custom board using nRF52. In my previous custom board, the total current consumption is 15mA with DCDC regulator enabled. I want to reduce this...
Hi,
I'm trespassing some code of nRF51 to nRF52 (s132, SDK 12.2.0) and I get an error when I try to call sd_ble_gatts_rw_authorize_reply. This is the code
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST...
I'm using the beacon example (SDK 12.2.0) which I've modified slightly so that a sensor output initiates advertising for 20 seconds with LED1 flashing accordingly. I want...
Hello I was working with the Flash Storage examples in the nordic github repo. I noticed that the FDS example while it has a IAR Workspace it does not have the associated...
Hi,
I am having trouble with buttonless DFU on my application. I am working on custom hardware on the nRF51822, SDK10.0.0, S130.
When I enter DFU from my application...
