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...
Can someone please provide detail on the clock source for the SysTick in the nRF52? Is it clocked by the processor clock or an additional clock source? I'm trying to understand...
what's the difference between app_timer api an nrf_drv_timer
are they using separate timers or the same timers?
if they are using the same timers, can app_timer_create...
I'm trying to use app_timer without softdevice, I tried to initialise it explicitally but still not working
static void lfclk_config(void)
{
uint32_t err_code = nrf_drv_clock_init...
I have an application which uses SPI to communicate with ADC.
when I don't use SoftDevice and use nrf_drv_timer to start conversion periodically it works
but when I...
Hi,
I am using the sample ble_gls code from Nordic.
When i try to write to the RACP characteristic through an iOS code that we are developing it gives an error CCCD not...
Upgrade softdevice through OTA (old softdevice version is s110_7.0.0, new softdevice version is s110_7.3.0), when complete upgrading, the application can't work but only the...
Dear Nordic developers,
In my project there is a possibility that CPU and RADIO EasyDMA peripheral can access to the same memory RAM locations in parallel. I read from...
I try to run ble_app_hrs_c & ble_app_hrs with softdevice S132-v2, when ble_app_hrs_c receives DM_EVT_CONNECTION event, reset event occurs and restarts.
Any idea to resolve...
Has anyone got the setup described here: developer.nordicsemi.com/.../a00042.html
running using mbed instead of uvision?
If not, any direction or guidance on how to...
I use timeslot and BLE in my project.
m_slot_length = 5000; //us
m_timeslot_request.request_type = NRF_RADIO_REQ_TYPE_NORMAL;
m_timeslot_request.params.normal...
Hello,
I want to implement a single bank ble dfu bootloader for nrf51822_QFAC. I already read most of the threads regarding this topic here in the DevZone. But now I`m...
I am developing some application and I have decided to use Device Addresses to distinguish between devices. I have read device addresses of 2 chips (I have read addresses...
Hi,
I am working with Gazell device and host example code from the Keil pack installer, using the default the data rate of 2MBit, so per Nordic's documentation the timeslot...
I confused that I run a SDK 9.0.0 example ble_central_and_peripheral app_s130_demo on my nrf51 SDK. then use Android App MCP to scan Advertise data. it did not work.
but...
