Remote Monitor v:1.9
BACKGROUND
TODO: A very brief blip on the background.
PRINCIPLE
TODO: Principle of operation, add schematic.
DEVICE
The device we're currently using is a Raspberry Pi Pico W For details of the pinout, see here
DEVELPOMENT
The Raspberry pi was coded in Python using Thonny, due to the ease of which it supports the Raspberry Pi, the codebase can be found here.
The client, known as Proton-5 was coded in Java using Netbeans, mostly on an Apple Mac. The codebase can be found here
Where possible it was intended to use Java 7, but certain aspects of the requirements were more suited to Java 8.
The following libraries are also required:
MySql Connector (mysql-connector-j-8.1.0.jar and mysql-connector-java-5.1.49.jar).
The above is packaged into an Install.jar file containing Launcher.jar, Autoexec.jar and launching scripts to suit Windows, Mac and Linux. (.bat and .sh). Note: The Proton-5 application can be launched from the command line with java -jar Launcher.jar ptoton-5
It can not be launched directly, it is protected by GateKeeper to allow for managed updates mostly.
THEORY OF SOFTWARE OPERATION
TODO
SOFTWARE
TODO: Detail the client and device software with link to repo.
OPERATION
AP Mode
On initial power up the device will likely be un-configured and as such will boot into AP mode, allowing the wifi network to be configured. To do this, simply search for the device's wifi network named Resource Monitor using your mobile device and connect using the password 12345678 (if required).
Configured Mode, Normal Operation
TODO: Describe normal operation...
If the device fails to connect to a configured wifi network, you will
also have the same opportunity as per Reset (the LED illuminates
for approximately 10 seconds), allowing you to reset the configuration and enter AP Mode without the need to power down the
device. See Reset for more information.
Reset
If a previous wifi network has been configured, the method to reset it is as follows:
Power on the device and the LED should illuminate continuously for a period of approximately 10 seconds (see LED Status). During this time, you can bridge pins 19 and 20 as shown in Fig.1 which will enter the device into AP Mode as discussed above;
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| Fig.1 |
TODO: Add access point image.
Once the device has been correctly configured and connected to your designated wifi network, navigating to the appropriate IP address and port should display a page similar to the below;
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| Normal Operation |
To monitor the device, connect using a usb cable and connect using PuTTY or using screen device baud, for example: /dev/cu.usbmodem1401 115200
If you do this after powering the device, you may be able to see some useful information or diagnostic, however in general use, there is no such need to do this.
In addition, when a client connects, be it the Proton-5 client or from a web browser, the following line will be printed to the console:
0:0 - Client 1/2 connected from ('10.28.12.69', 54100)
What this tells us is that there has been 0 wifi restarts and 0 web server restarts since power on, as you can see it also tells us which ip address and port has made the connection.
LED Status
The LED on the device will indicate the status of the device as below:
startup - blink twice, solid for 10 sec then flash 3 times.
check for reset - The LED will remain on for 10 seconds.
Configuration mode - The LED will flash twice every 5 seconds.
check for reset - The LED will remain on for 10 seconds.
Configuration mode - The LED will flash twice every 5 seconds.
Attempting to connect to wifi - The LED will flash quickly every 3 seconds.
Connected to wifi - The led will flash once ever 10 sec, this is generally the normal operation.
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