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...
Hello, I have established the connection between two pca10001 boards, one as central and one as peripheral using multilink_central and multilink_peripheral. I have serial...
Hi,my friend,
Now,I use nrf905.Situation is as follows:
I use the NRF PCB circuit of data manual.Nrf905 work, often loss of data.
1.The Product host is to use the stick...
Hi,
I want to use the Blend Micro with more security. I want use a passkey for the Bluetooth connection. For example through the iOS Device.
Is it possible? Static passkey...
How do I receive multiple signals simultaneously at a single receiver (433MHz) with multiple transmitters ?
I am working on a polling system. This one is similar to the audience...
Hello,
I established a connection between my central and peripheral module. Now i want to write characteristic value on peripheral. I tried with sd_ble_gattc_write function...
I am using the NRF24l01 for my products and looking to buy in bulk(100-1000). Now I know where to buy the just the IC but antenna design is a hard point to break right now...
In nRF51 SDK 7.1.0, there is a c header file using c++ keywords operator .
Here is a snippet of components/ble/ble_racp/ble_racp.h using the keywords.
/**@brief Record...
Hi all, I m new to Bluetooth Low Energy. I have to develop an indoor positioning project based on Bluetooth Low Energy 4.0 in which i have to locate person's current position...
My ble device try to notify a data to my android mobilephone after phone connect it,but sometimes,phone can't receive the data and error 8 occur .this happend frequently when...
Hi,
pstorage_raw_store() API fails as p_src address is not 4 byte aligned (i.e. 0x20002b1a), as p_src is RAM address and also as its "SOURCE" address is it necessary to...
Hey Folks
I wonder to design my own simple circuit based on NRF51422, the circuit should connect to a mobile app. By the way I'm I wonder to follow these steps:
visulaised...
Hi all,
I have one question about the deep sleep wakeup process in NRF24LE1. I want to realize the function that "when I press the button, it will cause rise edge on the...
Hi,
I'm testing doing a soft device update (v7.0 to v7.1) over DFU, but I consistently get OP_CODE_SYS_RESET sent to my device after 4 packets(80 bytes), at which point the...
Just want to know how acknowledged message works.
ANT document says there is no retry logic for acknowledged message.
According to ANT protocol, acknowledged message should...
Hi all!
I've been trying to OTA firmware using iOS nRF Toolbox App. I'm able to read.hex files in the App, although, after trying to send the file to the device the format...
I have a "heartbeat" LED which flashes for 10mS every 2 seconds. I was doing this with one of the HW timers and a PPI channel, but I have discovered that just having the HW...
How would I go about changing the connection event packet length?
I have an 8 byte characteristic setup with notifications enabled, but it still looks like it is transmitting...
Hi,
I have the following code with SD110 7.1.0:
static void uart_init(void) // device inter-communication
{
// Configure RX and TX pins.
nrf_gpio_pin_set(0);
nrf_gpio_cfg_output...
Hello,
I am building a sample protocol using nRF51822 DK. I am using S130 soft device. I have a few BLE nodes communicating with each other. The nRF51 DK acts as these nodes...
Is the nRF51822 pin-for-pin compatible with nRF51422?
I can't find any distributor stock of nRF51822-QFAC.
I see the eval kit has nRF51422. I don't need ANT functionality;...
