Question about bluetooth control
- Zhaoyang Dong
- Aug 21, 2023
- 2 min read
The problem is the error in bluetooth control GUI system.
In June, the situation is:
The time interval is not reliable. Any time smaller or larger than 100ms will be exactly 1.5s. Any time larger than 1000ms will result in not stopping.
Recently, we test it again.
When I set the time as the following:
The video is as below:
When I set the time as the following:
The situation is the same, the pump will never stop.
On the contrary, if we directly use arduino to control it with wire, the time accuracy could be reached to 5ms.
So the question is: what should we do to improve the situation.
Our setting up process is as below:
1.Download and install the Arduino IDE (1.8.X) from the website:
2.Add the FlowIO library into your Arduino Libraries folder:
3.Open the Arduino IDE and go into the Preferences. CAdd as an 'Additional Board Manager URL':
4.Restart the Arduino IDE. Open the Boards Manager option from the Tools -> Board menu and install 'Adafruit nRF52 by Adafruit
It will take up to a few minutes to finish installing the cross-compiling toolchain and tools associated with this BSP.
5.Once the BSP is installed, select from the Tools -> Board menu, which will update your system config to use the right compiler and settings for the nRF52:
6.Connect to the board and open the test codes to verify if it works. If the test works well, then upload the project to the board. By controlling the bar pressure, test the ability of the fibre to expand.
An additional supplement is :
I have tried your device with 24 Vs, however, there are still many problems which will limit the usage of this device:
The PCB board will rapidly overheat (within 2s).
Could anyone give any suggestion on the heat sink for prevention on overheating?