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I have a device that I need to control, that needs 2 different square wave signals of different frequencies (although they may be multiples of each other), one at around 4 MHz and one at 10 KHz. Additionally (while the ... (more)
I would highly apprciate if anyone can point me in the right direction here
After lot of consultation we imported a smal size shipment (of about 1000 nRF51822 based beacons) to India. We have a delivery / deployment commitment ... (more)
hello, I want to make a beacon with NRF51822 chip. But now i have a trouble: In normal working mode, after i stopped the advertising with sd_ble_gap_adv_stop() ,i cann't restart it with advertising_init() and advertising_start(). The chip is restarted every time.
I have a nRF51822 smart beacon kit and a ST-LINK V2. I read the documentation found on nordic's website, downloaded all the programs that the documentation requested etc. Unfortunately I can not connect to it on the computer, I ... (more)
Currently, I am developing a application on nrf51822 which requires writing values on flash to store in case of power down. However this values need to be updated frequently. Because this is just a small value, I just ... (more)
I download the mesh sdk from: http://www.nordicsemi.com/eng/nordic/Products/nRF5-SDK-for-Mesh/nRF5-SDK-for-Mesh/62377 Compile the light_switch/server project for nrf51422_s130 with SES, got the warning:
Linking light_switch_server_nrf51422_xxAC_s130_2.0.1.elf cannot find entry symbol reset_handler; defaulting to ...
Hello, I am useing NRF51822-QFAC in my BT bridge project; Now I need to design the matching circuit; there was some recommended matching circuit in the datasheet(11.3--11.10)(Picture2 in attachment); But the reference PCB (picture1 in attachment ... (more)
As the title says, I'm having problems connecting to my device with my custom board and I don't know what else to do. This is my Layout:
Whenever I upload my firmware to the nRF Kit it works ... (more)
I have a question that Product Specification v3.1 of nrf51822 describes Flexible Power Management: 2.6 μA at 3 V ON mode, all blocks IDLE. But, in the same place, NRF52832 describes as follows: 1.9 μA at ... (more)
I didn't see reference to it in documentation nor in the application help files.
I am working on an nRF51822 central BLE device. I am wondering if it is possible to lower the clock speed / underclock the device to save power? I know this will make it run slower, but it already is running ... (more)
I have a central device that uses BLE to scan for a specific device (there is only a single device it can bond with). Right now it checks the UUID and the mac address of all peripheral devices it finds ... (more)
I would like to get data from BLE device and I have two services are available in BLE device which is offering in 3 characteristics and 2 characteristics.
Can u share any source code which is used to get data ... (more)
I am using nRF 52832 (softdevice v2.0). I am writing a code to get data via SPI and then transmit over BLE.
I have written my code and SPI is working perfectly.
But the connection with the BLE gets ... (more)
I wanted to use a encoder for measuring rotary motions. so i kept a magnetic encoder named AS5601 which uses I2C communication and i have never done anything on this communication protocol before.
Any help for code is ... (more)
I am new to nRF platfrom, I am working on a protect which contains multiple BMD-200 modules with nRF51822 controller. It has to transfer some data via UART, I started of using example code and writing the values ... (more)
I added a SIG general onoff model by modifying nordic mesh SDK example project 'example/light_switch', just modified model ID as below:
#define SIMPLE_ON_OFF_CLIENT_MODEL_ID (0x1001)
#define SIMPLE_ON_OFF_SERVER_MODEL_ID (0x1000)
#define ACCESS_COMPANY_ID_NORDIC (0xFFFF)//as ACCESS_COMPANY_ID_NONE for SIG model
Then ... (more)
I heard that NRF51 familey is becoming obsolete and the NRF52 replaces tham is it true because we have a product the uses NRF511822 and we want to make another product using the same processor.
Is there and C/C++ source code to get float value from 32-bit ieee-11073 FLOAT data type
I need c/c++ code to parse 32-bit ieee-11073 FLOAT data coming from FORA IR20b Thermometer.
Please reply. Brajesh
Hi, I have NRF52832 development board and NRF51824 beacon board. I want to dumb the code to NRF51 but i don't know whether we can use NRF52 DK to do the same(Supply to NRF52 and connecting NRF51 to ... (more)
I am newbie to nrf51822 programming. Currently using nrf51822 (raytac's MDBT40) with S130, SDK11. I am programming the nrf51822 using arduino IDE using this github repo: https://github.com/sandeepmistry/ardu...
I want to store data such ... (more)
I've bought an iBeacon Station NRF51822 like this one (http://linksprite.com/wiki/index.php5...). My idea is using it as a temp sensor for my smart home installation. It works fine but the battery is drained ... (more)
Hi averyone, We are developing the BLE project whith two devices master/slave.
The master device is built on the NRF52832 processor with SDK14.1 and it's program is built is the modified example "ble_app_hrs_rscs_relay" that has the two ... (more)
hi, My program used total 10 app_timers, like this APP_TIMER_DEF(connect_timer_id); APP_TIMER_DEF(scan_timer_id); APP_TIMER_DEF(standby_timer_id);
I don't know how to setting APP_TIMER_OP_QUEUE_SIZE ? (If 10 app_timers need arrange APP_TIMER_OP_QUEUE_SIZE ?)
Because I test app_timers. I arrange APP_TIMER_OP_QUEUE_SIZE=2 when I use ... (more)
Hi I've been testing HID example ("nRF51 SDK v9.0.0\examples\ble_peripheral\ble_app_hids_keyboard\pca10028\s110\arm5_no_packs") for a while.Now,I want to test Custom HID over GATT base on the keyboard example using the pca10028 DK.reference ... (more)
How to flash SoftDevice and Bootloader (OTA enabled) to nrf51822 by CMSIS-DAP programmer? For instance: I did cmsis-dap programmer with mbed code form github. Can I do that with Keil? Just set properly IROM1 and IRAM1 values? Is something similar ... (more)
I'm tying to learn nrf51822. I had ordered some modules from ebay and nrf52-dk from local distributor . A week ago I had receive some modules. But local distributor says that nrf52-dk is late and won't delivered before ... (more)
Is there a demo project that contains RTC function with softdevice. I called the lfclk_config() and rtc_config() function before softdevice initial in main(), but it could not pass through SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL). How can I sovle this issue, am ... (more)
I am using nRF52832 , i need to connect external antenna with nRF52832 chip. I need 20 to 30 meter range. so which antenna is useful. and what is the necessary rule for connect the external antenna. Thank you in advance.
I am using FDS module in nrf51822, sdk 11 to store and read data from flash. I have a problem about reading the data. In the documents, the function:
fds_record_open(&record_desc, &flash_record) is used to read data from ... (more)