I was wanting to use a nRF24L01 with a breadboard but its pin-out didn't allow it. A solution then occurred to me based on parts at hand. I wrote it up with instructions and...
Hello. Can I get a literature to the nRF51 series?
I need a full abstraction of the nRF51, like a book or other information, it's structure schematic of build-in modules...
hts, HTC phone, nrf tools HTM, nrf51822,
every time when it's power up :
the once connect: error code 0x7A cann't read characteristic and 0x14 state change.
the second...
Our company needs wireless temperature sensors (can be externally powered or battery operated) and transceiver with 4 channel analog outputs. It has to be finished product...
I am toggling Value of slave through a button on nrf51822ek .This Value is displayed on MCP of dongle, but i have to get this value on terminal to send it to pi then through...
Hello, I am tryong to use to masters to communicate with two accelerometers.
Q1_ I found the following image from Nordic's website that shows SPI0 pins but there is no indication...
In the nrf51 series reference manual section 12.1.9 it states that there is hardware protection that prevents write instructions from being executed and that there is more...
Does there exist a white paper describing some typical PPI use cases with coding examples? The only one I've found is the peripheral/gpiote example and it is severely lacking...
Updates are moved to the end of the question
I created a modified version of pca10028.h and boards.h and have preprocessors changed so that the following new config is...
I example test ble_central and ble_peripheral of ble_app_uart.
Radio TX and RX test is OK.
It confirmed the data communications relating to uart_event_handler function....
I'm trying to get a time stamp using app_timer_cnt_get(&ticks), but the ticks always equals 0. And I have called APP_TIMER_INIT() to init the app timer. I have no idea why...
Hi everyone, I have been given a nRF51-DK board and I should use it to send data retreived from a sensor to it through Arduino, to finally receive it in my cell phone. I am...
Hello everyone,
I'm brand-new here. I have developed quite a bit of software on desktop PC's, but this is my first experience with embedded programming. A few weeks ago...
Hi Team,
So I downloaded the new nRF Connect for OSX. I inserted my PCA10031 nRF51 dongle into my USB port and the relevant lights lit up. However nRF Connect does not...
I am quite new to embedded firmware development and definitely just two days old into Nordic nRF52 development.
I want to just setup a 25% duty cycle clock output on GPIO...
Hi,
I have a very sophisticated program on nRF51822 with SD120 which uses SPIS (as an RX for another board) and UART. I used "spi_slave_example" as a base program.
I am...
Hi, in the (not great) mBed PWM driver, when setting up GPIOTE to toggle the output pin they do this:
/** @brief Function for initializing the GPIO Tasks/Events peripheral...
Hi,
I have a application that needs to advertise only for 120 seconds and on change in values of accelerometer , it needs to start advertise again.
presently i have a...
Hi,
I've been using these parts for a few years (the 51) and recently did some work getting the boot loader to be joined together with the application into a single burnable...
Hi,
I wish to exchange the sensor form mma7660 to hmc5883l, so I simply replace it with my own function just like mma7660 did.
Those function are
define HMC5883L_ADDR...
Dear All.
As I know, nRF52 support PDM mic. So, I'll make recording sound with nRF52.
But, I do not find PDM example on SDK 11.
Please notice me, where is the PDM mic...
We are using the NRF51822qfaag0 ic and softdevice 7.3 with sdk 6 . We are able to do dfu using the android device with nrftool box apk. But we have to do dfu from windows...
