The VegeHub makes it easy to connect sensors to the Internet.
The hub consists of a configurable WiFi board enclosed in a water tight box, with cable glands. It is designed for low power operation, and can be powered by battery, solar cell, or line connected DC power supply. Depending on sensor current and sample rate, it can operate several years with a quad Lithium Ion AA battery back.
The VegeHub uses TLS 1.2 SSL for secure Internet connections, allowing it to do secure https posts to servers.
You can configure the VegeHub and add it to your local WiFi network by using a browser on your phone or PC. Once connected, you use a simple phone app to determine the IP address that your router has assigned it. With this IP adddress, you can access the device and set up options, such as the sample period, data upload interval, sensor warm-up time, and link it to a data server through a simple webpage interface.
The VegeHub will connect with websites such as VegeCloud or ThingSpeak, out of the box. These sites will graph your data, and allow you to create actions, such as send an email, when your sensor data has crossed a particular threshold. If you want to post to your own website, this is also possible, using our simple VegeHub API.
VegeHub WiFi Sensor Hub - Applications
- Home automation.
- Garden and farm automation.
- Wireless sensor data gathering.
- Wireless irrigation and sprinkler systems.
- Environmental monitoring.
- Water conservation.
VegeHub WiFi Sensor Hub - Features
Pricing and Ordering Info
For volume pricing contact us.
|VG-HUB1||VegeHub WiFi sensor hub with single sensor input.||$49.95||Buy Now|
VegeHub WiFi Sensor Hub - Specifications
Sleep mode: 35uA.
Server update mode: 38mA for about 2.5 seconds
Sensor read mode: 11mA + the current consumption of the sensor.
|Sample Buffer Size||64|
|Supply voltage||5.5 to 12V supply|
|Dimensions||See drawing below.|
|Number of sensor inputs||1|
|Maximum sensor input voltage.||0 to 3.3V|
|Voltage to Sensors||Same as voltage input to unit.|
|USB comm port baud rate||115200|
|Operational Temperature||-40°C to 85°C|
|Enclosure||Wall mounting bracket.|
|Maximum Sample Rate||once per minute|
|Maximum update Rate||once per minute|
VegeHub WiFi Sensor Hub - Dimensions
VegeHub WiFi Sensor Hub - Battery Considerations
If you intend on powering the VegeHub from a battery, battery selection is very important. Not all batteries types act the same in different environmental conditions. For example alkaline batteries do not do well in cold temperatures.
For temperature extremes Lithium Ion batteries are best, with a typical range of -40°C to 60°C. If you need off the shelf disposible batteries we recommend Energizer Ultimate Lithium batteries. Their 9V battery has a 700mAh capacity, and their AA have a 3500mAh capacity. If you use the AA batteries you will need at least a quad AA battery holder to supply 6V or higher to power the VegeHub.
Recharable 3.7V Lithium Ion 18650 batteries are also a good choice, for environmental extremes, and for long life. Two batteries in series is sufficient to power the VegeHub.
Because batteries off-gas acid, especially in hot environments, never place batteries inside the VegeHub enclosure, as this will corrode and destroy the electronics, over time.
VegeHub WiFi Sensor Hub - Quick Start Guide
Connect the VegeHub to a remote server with the VegeHub Quick Start Guide.
If you intend on using the USB port, you will need to download and install the following USB driver: VegeHubCdC-Driver.zip, using these steps:
- Download the driver and extract to a directory.
- Open Windows Device Manager: Start Menu: Device Manager
- In the section that says "Other Devices" right click on the device called VegeHub with a warning symbol on it, and select "Update Driver Software..."
- Select the option: "Browse my computer for driver software"
- Browse to the folder that contains the USB driver, and select "Next". Windows will install the driver.
- You will now see a device called: "Communication Device Class ASF Example (COMX). Make a note of the comm port number,as you will need this later.
VegeHub WiFi Sensor Hub - Advanced Options
Flashing Root Certificates with USB
If you are connecting to VegeCloud, you can skip this step.
Some web sites will require SSL certificates that are not already included on the VegeHub. These can be put on the VegeHub using the USB interface.
- Obtain a copy of the Windows PC Software: CertificateUpdater.exe, and unzip the executable file.
- Plug the VegeHub into a USB cable connected to a Windows PC.
- Run CertificateUpdater.exe from the files you downloaded earlier.
- You should receive a prompt that will allow you to type in the website you would
like to connect to, then press fetch.
- If you are unsure which comm port to use, unplug and replug the USB and see which comport disappears and then reappears.
- Select the port that the VegeHub is using. If you don't see it listed, press the Refresh button.
- Press the Write button and watch the progress bar as it finishes the flashing process.
- The first thing to try is unplug the USB cable and power cycle the board, and repeat the above steps.
- It is possible to have too many certificates loaded into the device. This may give you an error. In this case, you must reduce the number.
- It is also possible to get an error when ever ything actually went fine, so you may want to try going forward_static_call even after an error.
VegeHub WiFi Sensor Hub -Diagnostic Lights
- Upon Power Up All 3 LEDs are lit. Most likely the battery has too low a voltage and needs to be replaced.
- Red LED is blinking Failure to connect to the WIFI network.
- Green LED is blinking Failure to connect to the server. Could be that you have bad SSL certificates, and need to update them.
- Yellow LED is blinking Failure to get the Internet time. It could be that the NIST timeservers are down.
VegeHub WiFi Sensor Hub -Troubleshooting
- Can not connect a laptop or phone to the Hub as a WIFI hotspot. Make sure that the red LED is lit. It should be the only LED lit. If all 3 LEDs are lit then most likely you have a bad battery. Use a voltmeter to test the battery voltage and make sure that the voltage is above 6V.