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...
I'm running into a weird problem where there is a long delay that is variable between calling ble_conn_params_change_conn_params() and receiving the BLE_GAP_EVT_CONN_PARAM_UPDATE...
Hello,
I've got a problem with my nRF51 DK. When I attach it to the USB port the drive doesn't appear on Windows explorer and green diode doesn't flash too.
I've been...
By design, the TI LP55231 LED driver IC will fail the TWI write of the reset register (0x3D). It's necessary to reset the IC in an edge use case. I'm using the nRF51822 HW...
Hi,
I want to write a characteristic, the value size is fixed, for example the size is 4 bytes. When I try to wirte 6 bytes from the client, the first 4 bytes is writed succesfully...
Hi all,
I have the nRF52 DK programming consistently without any trouble both on Kiel and using the nRFgo Studio.
My problems arise when I connect a 3rd party module...
Hi,
im trying to set up 3 PWMs for simulating a RGB LED with the 3 leds on the nrf52-dk.
I need the following behavior:
pushing on a button increases the width of the...
Hi,
I have implemented a custom application(Lets name that file app.hex) which works and sends the data to phone via BLE on my nrf51822 DK. I am using the s110 v8 softdevice...
Due to some constraints in the manufacturing process of my product, there is substantial mechanical variation in the BLE antenna. I can constrain this variation to a degree...
Hi,
I am trying to program MDBT40 with Jlink and having some problems.
Here is the scenario:
I have two versions of the MDBT40. One that I took off a BLE NANO (RedBear...
Hi,
I tried to get the sample ble_app_uart to work on NRF51422_DK with the S130.2.0.0 soft_device.
The compilation and programmation of the board is OK.
The soft run...
Hi all, i recently posted some topics about my application to receive support, everything went good but now i need to add a last step to the project, and i would like to have...
I am using nordic_sdk_10 for PCA10001. what are the BSP changes and config changes needed after replicating PCA10028 for DFU over UART.
I just changed CFLAFS & ASM FLAGS...
Hi,
I am storing data using pstorage module but when i power off my nrf51-dk board, the contents get deleted and not retained in memory. What could be the reason for that...
