My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
So I'm currently trying my hand at some very simple things that one can do with the NRF51-DK.
One of those things involves sending notifications to a client on certain...
Hello,
I'm testing n51822 with low voltage mode, and want to check the BOR condition.
Is there any threshold for brown-out reset, or voltage tolerance? e.g. 1.68V...
Hi.
I have received down the source of the example of experimental_ble_app_uart in my keil.
I use register.(NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;)
but, Hardfault occurs...
Hi there,
I am currently using the nRF51 DK trying to teach myself how to create a working ble application. I am currently going through the application note nAN-36_v1...
Hello!
We are using an BLE NRF51822 chip as a GATT-Server, unfortunately without any possibility to modify its software at the moment. The BLE-setup should be very similar...
I want to run the Direct Test Mode for nRF51422 on my board, I'm trying to use the nRFgo Studio.
When I'm trying to connect to the specific COM port, I get the following...
Custom Board which has NordicSemi nRF51822-QFAA MCU,
a temperature sensor (Si7020-A10), and a white LED. The circuit follows the internal LDO setup.
(Ref. nRF51822_PS...
Hello,
i use Bootloader from SDK 7.2.0. I have some questions about init packet handling:
The bootloader compare the device type, device revision and softdevices...
During ble ADV，my device will consume 60uA，when ADV stoped it will drop to 13uA. But when I get ble connected current will up to 130uA.
I test nrf51_sdk_v6_1_0_b2ec2e6...
Hi,
in the new version of S110 (8.0.0) I can see the implementation of scan services:
SD_BLE_GAP_SCAN_STOP, /**< Stop Scanning. */
SD_BLE_GAP_CONNECT, /**< Connect....
Hi,
like many others, I'm confused with Peripheral Passkey Connection.
I'm playing with the ble_app_hrs, in order to be able to setup a Connection Passkey (for the moment...
Just got the S110 SD spec, version 2.0. Very interesting.But I've recently switched from projects on the Keil MDK IDE to the mbed environment (using the nRF5-DK as test platform...
Hi All,
Has anyone mimicked the nrf8001 ACI interface over SPI on the nrf51x22 devices using S110 soft device?
I am interested in increasing throughput by using 6 packets...
Hello,
I am working on a project regarding the pairing security of two BLE devices. nRF8001 chip follows the v4.0 specifications which lacks security against passive eavesdroppers...
