DST1200 User Guide: Difference between revisions
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<metadesc>Detect several solid objects up to 10m away in a wide sensing range, or use the Sonar Phidget as an ultrasonic range finder.</metadesc> | |||
[[Category:UserGuide]] | [[Category:UserGuide]] | ||
==Part 1: Setup== | |||
{{PT1 Deck Sequence}} | |||
== Part 2: Using Your Phidget == | |||
===About=== | |||
The DST1000 uses reflected ultrasonic waves to measure distance. Use this Phidget for motion sensing, object detection, or spatial awareness. The sensor will measure the distance of as many as 8 objects at the same time, from 40mm to ~10m in optimal conditions with an accuracy of about 10mm. | |||
= | [[Image:DST1200_About.gif|link=|center]] | ||
===Explore Your Phidget Channels Using The Control Panel=== | |||
You can use your Control Panel to explore your Phidget's channels. | |||
'''1.''' Open your Control Panel, and you will find the following channel: | |||
= | [[Image:DST1200_Panel.jpg|link=|center]] | ||
'''2.''' Double click on the channel to open the example program. This channel belongs to the '''DistanceSensor''' channel class: | |||
{{UGC-Start}} | |||
{{UGC-Entry|Sonar Phidget:| Measures the distance of objects in front of the DST1200| | |||
In your Control Panel, double click on "Sonar Phidget": | |||
[[Image:DST1200-DistanceSensor.jpg|center|link=]]}} | |||
{{UGC-End}} | |||
{{UG-Part3}} | |||
When you receive data from the DST1200, you | == Part 4: Advanced Topics and Troubleshooting == | ||
{{UGC-Start}} | |||
{{UGC-Addressing}} | |||
{{UGC-Graphing}} | |||
{{UGC-DataInterval}} | |||
{{UGC-Firmware}} | |||
{{UGC-Shield}} | |||
{{UGC-Entry|Quiet Mode|| | |||
The DST1200 has a ''Quiet Mode'' which reduces the volume of the sound pulses used by the sonar sensors. While the sound that this Phidget makes is audible in either mode, it is much less noticeable with quiet mode enabled. By enabling quiet mode, you will decrease the maximum sensing range and the number of reflections detected. Quiet mode also consumes less power (see product page specifications for details). | |||
}} | |||
{{UGC-Entry|What does "Amplitude" mean for this sensor?|| | |||
When you receive data from the DST1200, you will end up with an array of sonar reflections that each have a distance and an amplitude. The distance, of course, refers to how far away the object is. The amplitude gives you a general idea of the size of the object. The amplitude value can range from 3 to approximately 900, with 3 being a very small reflection and 900 being a very large reflection. In some applications, you will want to ignore reflections with an amplitude you deem is too small. | |||
}} | |||
{{UGC-Entry|Saturation Error|| | |||
The DST1200 will fire saturation error events when the nearest reflection is closer than 40mm from the sensor. At this range it is too close for the sensor to accurately determine the range of the object. | |||
}} | |||
{{ | {{UGC-End}} | ||
Latest revision as of 17:53, 21 June 2022
Part 1: Setup
Your Phidget must be connected to a device with a VINT port using a 3-wire Phidget cable.
Which device are you connecting to?
HUB0000 - HUB0007
USB VINT Hubs
HUB5000
Wifi VINT Hub
SBC3003
PhidgetSBC 4
Select your Operating System:
Windows
MacOS
Linux
Select your Operating System:
Windows
MacOS
Linux
Select your Operating System:
Windows
MacOS
Linux
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Connect Wireless
Step 4: Verify Connection
Step 5: Update
Step 3: Verify Connection
Choose a setup method:
Configure with mobile device
Connect with ethernet cable
(Requires physical access to router or switch)
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Connect Wireless
Step 4: Verify Connection
Step 5: Update
Step 3: Verify Connection
Choose a setup method:
Configure with mobile device
Connect with ethernet cable
(Requires physical access to router or switch)
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Connect Wireless
Step 4: Verify Connection
Step 5: Update
Step 3: Verify Connection
Choose a setup method:
Configure with mobile device
Connect with ethernet cable
(Requires physical access to router or switch)
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 3: Connect Wireless
1. When you connect the power supply to the HUB5000, the red LED should turn on.
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 4: Connect Wireless
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 4: Connect Wireless
Step 1: Install Phidgets Library
Step 2: Connect Devices
Step 3: Verify Connection
Step 4: Connect Wireless
Part 2: Using Your Phidget
About
The DST1000 uses reflected ultrasonic waves to measure distance. Use this Phidget for motion sensing, object detection, or spatial awareness. The sensor will measure the distance of as many as 8 objects at the same time, from 40mm to ~10m in optimal conditions with an accuracy of about 10mm.
Explore Your Phidget Channels Using The Control Panel
You can use your Control Panel to explore your Phidget's channels.
1. Open your Control Panel, and you will find the following channel:
2. Double click on the channel to open the example program. This channel belongs to the DistanceSensor channel class:
In your Control Panel, double click on "Sonar Phidget":
Part 3: Create your Program
Part 4: Advanced Topics and Troubleshooting
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
Note: Graphing and logging is currently only supported in the Windows version of the Phidget Control Panel.
In the Phidget Control Panel, open the channel for your device and click on the 
icon next to the data type that you want to plot. This will open up a new window:
If you need more complex functionality such as logging multiple sensors to the same sheet or performing calculations on the data, you'll need to write your own program. Generally this will involve addressing the correct channel, opening it, and then creating an Event Handler and adding graphing/logging code to it.
The quickest way to get started is to download some sample code for your desired programming language and then search google for logging or plotting in that language (e.g. "how to log to csv in python") and add the code to the existing change handler.
Filtering
You can perform filtering on the raw data in order to reduce noise in your graph. For more information, see the Control Panel Graphing page.
Graph Type
You can perform a transform on the incoming data to get different graph types that may provide insights into your sensor data. For more information on how to use these graph types, see the Control Panel Graphing page.
The Change Trigger is the minimum change in the sensor data needed to trigger a new data event.
The Data Interval is the time (in ms) between data events sent out from your Phidget.
The Data Rate is the reciprocal of Data Interval (measured in Hz), and setting it will set the reciprocal value for Data Interval and vice-versa.
You can modify one or both of these values to achieve different data outputs. You can learn more about these properties here.
Firmware Upgrade
MacOS users can upgrade device firmware by double-clicking the device row in the Phidget Control Panel.
Linux users can upgrade via the phidget22admin tool (see included readme for instructions).
Windows users can upgrade the firmware for this device using the Phidget Control Panel as shown below.
Firmware Downgrade
Firmware upgrades include important bug fixes and performance improvements, but there are some situations where you may want to revert to an old version of the firmware (for instance, when an application you're using is compiled using an older version of phidget22 that doesn't recognize the new firmware).
MacOS and Linux users can downgrade using the phidget22admin tool in the terminal (see included readme for instructions).
Windows users can downgrade directly from the Phidget Control Panel if they have driver version 1.9.20220112 or newer:
Firmware Version Numbering Schema
Phidgets device firmware is represented by a 3-digit number. For firmware patch notes, see the device history section on the Specifications tab on your device's product page.
- If the digit in the 'ones' spot changes, it means there have been bug fixes or optimizations. Sometimes these changes can drastically improve the performance of the device, so you should still upgrade whenever possible. These upgrades are backwards compatible, meaning you can still use this Phidget on a computer that has Phidget22 drivers from before this firmware upgrade was released.
- If the digit in the 'tens' spot changes, it means some features were added (e.g. new API commands or events). These upgrades are also backwards compatible, in the sense that computers running old Phidget22 drivers will still be able to use the device, but they will not be able to use any of the new features this version added.
- If the digit in the 'hundreds' spot changes, it means a major change has occurred (e.g. a complete rewrite of the firmware or moving to a new architecture). These changes are not backwards compatible, so if you try to use the upgraded board on a computer with old Phidget22 drivers, it will show up as unsupported in the Control Panel and any applications build using the old libraries won't recognize it either. Sometimes, when a Phidget has a new hardware revision (e.g. 1018_2 -> 1018_3), the firmware version's hundreds digit will change because entirely new firmware was needed (usually because a change in the processor). In this case, older hardware revisions won't be able to be upgraded to the higher version number and instead continue to get bug fixes within the same major revision.
If your device has a icon printed on the enclosure, it means that it has an improved filter on its VINT connection that upgrades performance when plugged into a port on a VINT Hub that also has the icon:
- Improved immunity to electromagnetic interference from other nearby electronics
- Increased maximum Phidget Cable length
For details on how the maximum cable length is impacted, see the specifications tab on the product page for this device.
The DST1200 has a Quiet Mode which reduces the volume of the sound pulses used by the sonar sensors. While the sound that this Phidget makes is audible in either mode, it is much less noticeable with quiet mode enabled. By enabling quiet mode, you will decrease the maximum sensing range and the number of reflections detected. Quiet mode also consumes less power (see product page specifications for details).
When you receive data from the DST1200, you will end up with an array of sonar reflections that each have a distance and an amplitude. The distance, of course, refers to how far away the object is. The amplitude gives you a general idea of the size of the object. The amplitude value can range from 3 to approximately 900, with 3 being a very small reflection and 900 being a very large reflection. In some applications, you will want to ignore reflections with an amplitude you deem is too small.
The DST1200 will fire saturation error events when the nearest reflection is closer than 40mm from the sensor. At this range it is too close for the sensor to accurately determine the range of the object.
