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,
is it possible to use the RSSI value of the NRF51822 for collision avoidance?
How long does an RSSI measurement take?
I'm trying to implement a discovery protocol...
Hi all! I used PWM module of nRF52832 to create the PWM but i don't know how to update new value to duty_cycle. This is my code. I used Button (Pin 13) to set a new DUTY_CYCLE...
I am trying to set custom value to advertising address. The code snippet is below. I am getting error code 0x10.
static ble_gap_addr_t * p_addr;
uint8_t itr_i;
p_addr...
Hello,
I have a question about stack usage. I use nRF51822 SoC, 12.2 SDK & IAR 7.60.1. I am interested in stack usage. Have you done any estimations? Or may be you have...
We have a BLE application where we need hopping through nodes. I have shown below how it looks like. We don't want mesh network because we don't require node to node communication...
i use nrf52_DK to debug PDM with a digital MIC, and select the P0.09 for the PDM clk, but i have not see any clock signal output, is it right? and i also haven't see the convet...
Say I have 3 records, then I delete them and collect the garbage. If I try to save a new record again, it will be saved with a record ID 4 , but it should be back to 1 after...
I want to use the development kit for Bluetooth 5.0 IoT product development.
Is there already a bluetooth mesh software available for the nRF52840 development kit?
Or...
I am working on time synchronizations between different nodes in a mesh network. I have earlier worked on the radio and the ppi examples given. I wish to generate time stamps...
Hi
I would like to prepare a provisioning hex file for my firmware.
Can somebody supply an example how this could be made?
I'm using gcc toolchain, Eclipse and SDK...
Hello,
I am using sdk12.2.0 and pca10028 dk. I am using one code downloaded from unknown source. The code is used to store data in flash. When I compile through keil I don...
Hi,
i try to establish a communication between 3 sensors in the following way!
Node 1 should broadcast messages to Node 2 and Node 3 as Peripheral.
To establish a...
Hello,
I am using pca10028 and sdk 12.2. I have interfaced temp sensor with nrf51 and now I want to store that data continuously in memory of nrf51. I want to store min 4k...
Hello, I want to program and debug the nrf52840 device but I'm kind of stuck at the programing range/address issue.
I'm using my customized board so I doubt Nordic Semi...
