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...
When performing a DFU using the latest iOS nRF Toolbox I keep getting an "Error on init Packet Message:Operation Failed". The DFU works fine with the same firmware application...
HI:
i use master control panel to write data to 51822(sdk8.0 ble_app_uart),but i can't write successfully.i do as help information.and i have selected the right UUID and...
I've just got up and running with the nRF51 DK. I've had a play with some of the examples, and now I've started on my own project using ble_app_template_s110_pca10028 as a...
After startup, I was able to send a spi msg from the master (app chip) to the slave(nordic). But when I try to sent the second message, I did not get any response from the...
I am using the SPI Slave peripheral and attempting to send the nrf51822 bytes from another MCU.
Am I right to assume that there is, basically, a 256 byte max per transaction...
Hi,
I have nRF51822 board which works great with my app when running on iOS 7
The application listens for iBeacon transmission and displays them.
When i installed my...
Hi, I made a custom PCB.
I use a Revision 2 MCU.
The antenna is printed. I didn't used the chip antenna.
Sorry for not showing both the full schematic and the...
Dear all,
I'm trying to connect the NRF51-DK (PCA10028) with a LSM330DLC accelerometer over TWI (I2C). I'm using the ble_app_uart example, included the twi_master.h file...
I need to implement a function to store some parameters such as uart baud rate and use these parameter for device initialization, The parameter could be modified when the...
Hello,
I`ve got a working S120 peripheral BLE device with custom services and characteristics.
I am able to connect and bond with iOS and Android. But I cannot connect...
Hello:
Im rewritting a program from ST32F105RC to NRF51822.
In a part of the program of ST32, it checks if the interruption from pins 5-9 (EXTI9_5_IRQn) is enabled, and...
Hi,
I worked with temp sensor example and sofdevice s110 and something stuck on some function.
Anyway, I made readout from registers but softdevice blocks register access...
My nRF51 will occasionally lose connection to the computer, and I have to disconnect and then reconnect it before it will work. How can I reset the device dynamically, without...
I'm trying to compile a project I have for nrf51 on nrf52. I am running into errors with macros not being set.
For example:
error: #20: identifier "ADC_CONFIG_RES_10bit...
