I am looking for cheapest (up to few hundred USD) and simplest Arduino basic solution to track real-time RFID tags distance (also direction if possible) without additional...
Hi all,
I am new to Nordic semiconductor but I could be interessed by nRF9E5. To check if it could fit my requierement, I would like to know if it possible to configure...
Hi,
I am using ADC without external reference and no analog input in order to measure the battery level with a timer (code at the end).
I am also reading several ports...
Hi,
I'm programming the nRF51822 and save some user data into the FLASH by using pstorage_update . It works fine if I set system off mode, and wake it up. I can read back...
Hi,
I have been using nRF51822 with my Android app using Android's Bluetooth Low-Energy APIs.
In order to get more details, I am currently working on integrating the Android...
I'm looking at interfacing a typical Wheatstone bridge sensor to the nRF51822 ADC. This particular sensor only requires a mA or two for excitation and the output fits within...
When use the "nRFBeacons" app to update the info on my beacon the following happens:
Go to update tab.
Select "Connect"
Press "SW2" on beacon and see the LED begin flashing...
After startup, I was able to send a spi msg from the master (app chip) to the slave(nordic). But when I try to sent the second message, I did not get any response from the...
I am using the SPI Slave peripheral and attempting to send the nrf51822 bytes from another MCU.
Am I right to assume that there is, basically, a 256 byte max per transaction...
Hi,
I have nRF51822 board which works great with my app when running on iOS 7
The application listens for iBeacon transmission and displays them.
When i installed my...
Hi, I made a custom PCB.
I use a Revision 2 MCU.
The antenna is printed. I didn't used the chip antenna.
Sorry for not showing both the full schematic and the...
Dear all,
I'm trying to connect the NRF51-DK (PCA10028) with a LSM330DLC accelerometer over TWI (I2C). I'm using the ble_app_uart example, included the twi_master.h file...
I need to implement a function to store some parameters such as uart baud rate and use these parameter for device initialization, The parameter could be modified when the...
Hello,
I`ve got a working S120 peripheral BLE device with custom services and characteristics.
I am able to connect and bond with iOS and Android. But I cannot connect...
Hello:
Im rewritting a program from ST32F105RC to NRF51822.
In a part of the program of ST32, it checks if the interruption from pins 5-9 (EXTI9_5_IRQn) is enabled, and...
Hi,
I worked with temp sensor example and sofdevice s110 and something stuck on some function.
Anyway, I made readout from registers but softdevice blocks register access...
My nRF51 will occasionally lose connection to the computer, and I have to disconnect and then reconnect it before it will work. How can I reset the device dynamically, without...
I'm trying to compile a project I have for nrf51 on nrf52. I am running into errors with macros not being set.
For example:
error: #20: identifier "ADC_CONFIG_RES_10bit...
Hi,
I'm working on a sensor application that sends out fairly large quantities of data via BLE notifications. I understand how bluetooth works and have read and followed...
Hi,
I'm currently testing ble_app_uart on nRF51822 custom board. I connected it to nrf51 DK P19 and was able to program the hex file successfully.
But it doesn't run...
Hi, In your documentation you specify the maximum CPU temperature 85 DegC.
What problems could one expect after this point?
How much safety margain du you have on this number...
