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I am working through the TWIS Slave and TWI Master mode drivers Example using SDK 12 with the nRF52832 PCA10040 board and having issues. I am using Minicom through the terminal on a Mac to talk to the board. After ... (more)
I started a new software project on the nRF52832 a couple of weeks ago. I've been using Segger RTT for a lot of debugging with no problem throughout the beginning of the process. I've recently hit an issue ... (more)
I'm using s110 pheripheral mode in my application. I want it to be in sleep mode and do not advertise untill a central want to connect it. Is it possible, when a central start scan my pheripheral device read ... (more)
I'm using the nRF52832 chip without an external crystal. I configured it to use the internal RC with:
nrf_clock_lf_cfg_t clock_lf_cfg; clock_lf_cfg.source = NRF_CLOCK_LF_SRC_RC; clock_lf_cfg.rc_ctiv = 16; clock_lf_cfg.rc_temp_ctiv = 2; clock_lf_cfg.xtal_accuracy = 0; // Initialize SoftDevice. SOFTDEVICE_HANDLER_APPSH_INIT(&clock_lf_cfg, true);
However, the ... (more)
Hey, I am trying to sample from 10 analog sensors and stream the results via bluetooth. Since the nRF5 is on a board that only lets me access 5 Pins, I am using a 16:1 multiplexer connected to a ... (more)
I've run into some interesting behaviour in my code and wanted to see if anyone can clarify for me. It seems as though the SPIS module doesn't set the MISO pin as high impedance when the CSN pin ... (more)
Hi, I'm using nrf51dk board and nrf_log came out correctly on my RTT terminal with built in module. After that I use debug port (P20) to program to my custom module. I've vdd, gnd, swdio and swdclk connected ... (more)
I'm looking to use the nrf open mesh on battery powered devices based on nrf51822. I would like to enable the mesh for short periods of time to transmit values (~50 nodes, each with a single 20 byte attribute ... (more)
I face a problem that I have not been able to solve since several days...
I would like to send only one advertising frame every 4 seconds. I do not want to use connectable mode since I only ... (more)
Hi, Dear Expert:
I am an Electronic Engineer. We used nRF51422 or nRF51822 at our products, but found the products was easily reset when did +/-1KV contact ESD testing at charging pogo pin. So, I added a 1uF capacitor between ...
I am spending the last 3 days trying to make sure somebody on this plant made it using a mac. Write a simple program and flash it to the DK. (before we make our own pcb)
I was able to ... (more)
I have changed in my services so I have added 0x2A05 (service changed) characteristic in my 0x1801 service. But I am not able to read the service.
In didDiscoverServices I have below code.
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError ...
Hi, i'm currently using two NRF52 (1 central and 1 peripheral) using the ble_app_blinky and the ble_app_multilink_central.
I would now like to connect my Android phone with the Central in ordrer to control several NRF devices.
How can I ... (more)
Can we add capacitor to the swdio pin to improve ESD capacity? We have make some sample that add 1uF capacitor to the swdio, indeed have improved the ESD capacity. But we don't know whether it will ... (more)
(1) 52832 PCA10040;(2) softdevice: s132_nrf52_4.0.2; (3) sdk 13.0.0(4) 52832 configure 4 conccurent peripheral connections:
ble_cfg_t ble_cfg; memset(&ble_cfg, 0, sizeof(ble_cfg)); ble_cfg.gap_cfg.role_count_cfg.periph_role_count = 4; ble_cfg.gap_cfg.role_count_cfg.central_role_count = 0; ble_cfg.gap_cfg ...
I have this board: https://www.sparkfun.com/products/13990 connected to a PCA10040 Nordic board. I am able to write and debug the Sparkfun board (the blinky LED example). I am now trying to get the ANT+ HRM ... (more)
I'm having issues executing any Zephyr project on a breadboard connected to a ISP1302. It works fine on the nRF51-DK but anything I try a final hardware nothing happens. Tried LED blink, UART comms and now a beacon (because ... (more)
Hello, I am trying to implement OTA firmware update using Secure DFU.
SDK - 12.2
Softdevice - s132
Board - PCA10040 (nRF52)
I followed instructions mentioned here
Once the bootloader code has been uploaded, device advertises as DFUTARG.
Able to connect ...
I was wondering what would be a good block size, and saw this in the documentation:
For example, if a module has a table with 10 entries, and each entry is 64 bytes in size, it can request 10 blocks ...
Is there a mechanical specification document for the nRF52 development kit (PCA10040)?
I can extrapolate from the Arduino Uno Rev 3 specification (P1-4 connectors and holes) but I can't do it for the P20 connector (with precision).
Thanks ... (more)
Assuming SDK 12.x
For those people that want to integrate the Buttonless DFU service to their app, which uses already one custom base 128bit UUID, please make sure to:
softdevice_handler.c (located at
I need to add connectable beacon advertising data instead of normal advertising for proximity profile example (NRF52 DK -> PCA10040 ->S132 -> nrf52832).During Advertisement it should show beacon data and in connected state it should stop.
I tried of doing ,but ... (more)
I've just started to implement the example
for the nrf52. And it is now running so I can send and receive stuff via BLE and at the same time send something via ESB to ... (more)
hi,all i use ble-sniffer_win_1.0.1_1111_Sniffer.exe,but it note as follow:
and Why sometimes not get the connection of the data? Sometimes it stop 60 CONNECT_REQ or else
I am not able to read value from characteristics. Always getting isNotify=NO.
not able to call back didUpdateValueForDescriptor method for desritor
Hey, I want to save stuff to flash under the same id and key which should be no problem as shown in the documentation. But when I save it and retrieve the data only the last saved data is in ... (more)
We had a power issue with our custom board related to DFU updates. After performing a DFU we were seeing 8mA idle current, and when we had programmed the firmware directly with the JLink Flasher, we were seeing ~500µA ... (more)
I want to know Tx power and duty cycle information of Beacon and NRF52 for the following cases:
In our case NRF52 will be our receiver and Beacon will be transmitter.
Consider NRF52 as an master and beacon as ... (more)
What is the best method for attempting to recover from a stuck TWI bus after init?
I am currently initializing the TWI instance with
.clear_bus_init=true but this only happens once during the init.
For example in the past we ... (more)