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...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hello,
i am using the Visualgdb with sdk v 13.01. i have Nrf52840
i was trying to read the DeviceID of ADXL345
i am using API from this thread
devzone.nordicsemi...
I have used pstorage before but when I add scheduler to my project I face an error in update function of pstorage that in debug I found error_code : NRF_ERROR_NO_MEM .
any...
In short:
Is it possible to connect a nRF51822 s110 peripheral from a central without the need for sending advertising packets (by peripheral)?
If (hopefully) yes...
Hello,
I am trying to create an application that sends a notification from the nrf52 to a smartphone when a sensor reading exceeds a certain value. Would the immediate...
Hi,
I have designed and made a PCB with the nRF51422 chip on it. I am programming the chip externally using the P20 header pins on the nRF51-DK. I am not sure whether the...
What I have to do if I met this ? I round length to fit (len+4-(len % 4)). Is it right ?
if (!(IS_WORD_SIZED(m_start_packet.sd_image_size) &&
IS_WORD_SIZED(m_start_packet...
Hello,
We have problem BLE connecting to the nRF52832, if we use the method gap_init(), the "better" smartphones can connect(those who support BT 4.2). If we skip the gatt_init...
Hi,
I'm trying to program an external NRF52832 board with the NRF52-DK, per the instructions in this post .
Programming works fine, but the code doesn't execute after...
Hi,
I'm trying to do DFU in my app, I almost complete it, I met a problem that my app flashed back when I sent 04 to the device.According to the DFU doc,after uploading firmware...
Hi,
I'm using the ADC of nRF52832 on nRF5 SDK V12.2. The setting as attachment. I found that it just do sample one time. But I have use timer to call nrf_drv_saadc_sample...
The scenario like this:
A is BLE peripheral with firmware (ble_app_uart under nRF_SDK_13.0.0_04a0bfd), if no filter,any central can cenncet to it, but I just want B can cennect...
Dear all,
Help please,
I'm evaluating ble_app_uart (Central/Peripheral) but I don't understand how to disable the echo I have on the RTT USB VCP
When I send data from...
I am using 3 nrf52 DKs with S132 and SDK13 to try and implement a combination of the multilink and UART examples. I started with the ble_app_uart_c example and added the relevant...
Hello! I try to use three modules with chip nRF24L01 to syncronize two slave devices by one master device without wires. Required accuracy is about 10 nanoseconds. My idea...
