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...
Hello! I am trying to prototype a DFU solution that works well for our application. We want to build a network with both normal Mesh devices and with friend nodes (once that...
Hi,
for my PCB, i'm using an NRF52832 as SPI slave, i send an array of 4 bytes {0xA5,0x00,0x01,ff}, but my SPI master receives always a byte (0xff) before 0xA5.
this...
Hello everyone
I have kind of a basic question.
I'm not sure how to manually disconnect from a ble connection. I'm using the ble_app_uart and ble_app_uart_c examples from...
Hey all,
We’re trying to figure out the best way of keeping our nRF52 (or 51) based design in the lowest power mode possible while sitting in inventory.
Currently, our...
Greetings,
I have 12 sensors each of which is located on an nRF52832 board. I need to collect the sensor data at 50Hz (10 bytes for each sensor).
For some reason I can...
This one is throwing me for a loop.
We just did a small build of 40 devices based around the nRF52832. 1 device out of those 40 is behaving very strangely. When the device...
Hi Sir
I want change the power transmission level for measuring the RSSI values for different configuration from -40DB to 4DB. for that i configure the radio. But it is...
When compiling (after the project folder change and paths updating) I get always this error.
No idea why. The C99 option is choose
It compiles correctly from SDK tree...
Hello,
I just finished migrating my project from SDK13.1 to 15.0. It caught my attention that when I flash the Softdevice, it uses memory from pages 0x00000 - 0x24000. I...
I think I found a bug in nrf_ringbuf_cpy_get. The first memcpy is wrong. The source and destination should be swapped.
if (length > trail) { memcpy(&p_ringbuf->p_buffer...
Hello,
I am using the NRF51822 in a low power application and need to transfer the data from the PCB (with the NRF) to the PC over Bluetooth. I need the biggest possible...
Hi,
I would like to know if there is any reason that tx_power is limited to +4dBm in the Mesh examples. I am using an nrf52840 and it is capable of +8dBm. Would it increase...
I am starting afresh, and have only just downloaded & installed Keil v5.25, nRF SDK v15.0.0, and nRFgo Studio v1.21.2.10
So everything should be "latest" and "up-to-date...
I am working on small UART project. I am begineer coder.
I want to transmit 0-9 numbers using UART. I am using nRF52832 board and IDE using is Eclipse pca10040. I applied...
