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...
Hi.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
Hello,
We are using Nordic SDK 11 MQTT adapted for TCP/IPv4(separate module) . It works fine without TLS. I added the flag "MQTT_TRANSPORT_SECURE" and made adaptations...
Hello,
Question regarding using the SPI master peripheral with DMA to communicate from the nRF52832 to the ads1296 device .
In order to use this device in the mode and...
Hi engineers, Here we are facing a critical problem in which the NRF51822 stops handling/processing the GPIOTE->PORT interrupts after some days good working. This problem...
I have a project which needs to be built in IAR, but uses the signed bootloader. I understand, that if I want to flash and debug the application from within IAR, I need to...
Hello,
In my next project I plan to conductive pads as buttons(that are exposed for humen touch to interacte with the) one is connected to ground and the rest will connect...
Hi,
I am using SDK v14.1 for nRF52840.
The secure_dfu_usb debug example works well when the J-link RTT Viewer is connected.
But when the RTT Viewer is disconnected the...
Hi everyone,
I would like to know if it is possible to establish a serial communication to a PCA10028 card using Adafruit Bluefruilt LE friend knowing that there is no...
Hello everyone,
I am using nrf51822 chip that has functionality to flash bl, sd or app using mobile app application. I want to reuse this functionality in order to have...
When I was using the device as peripheral, I was wondering when the Softdevice notified BLE_GAP_EVT_SEC_PARAMS_REQUEST and BLE_EVT_SEC_INFO_REQUEST:
1, when peripheral...
I am using the ble_app_uart example as my base on a 52832 with sdk 12. My project runs off line power and needs to remain available for connection 24/7. I have commented out...
I am communicating with a temperature sensor (MLX90614), which has flag register. However, in order to read this register, I must send a read sequence without issuing the...
Hi,
As has been mentioned many times, the DIF on both the nRF51 and nRF52 consumes quite a bit of current. In the past, on the nRF51, I've relied on power cycling both chipsets...
Hello,
I would like to make changes in ble_app_uart_c example for connecting to a custom peripheral.
Service Uuid of my peripheral is as follows : 99aa0001-d0e3-44ce-a306...
Our homeowners association has a gate which opens when a transmitter in the car is pushed. I would like to add a BLE device to the gate which would trigger the gate to open...
Hello all,
So.... i'm quite green to the Nordic and Bluetooth protocol.
i want to program NRF51422.
what i have now it the Nordic test board and a spi-canbus print. this...
