Motion data showing a large 30 second gap in acceleration, angular velocity and magnetic field.
And found my first bug. The phone app stops sampling when the screen turns off or I navigate to another app.
Any one want to be a Beta Tester? The process is simple, you can play around with the app for free, and then give me feedback. Good or bad, it helps me build something better.
Screen shot of the start screen with Bob Environmental. Shows a list with Logbook entries and at the bottom is a Play button where you can start taking data.
Screen shot of the log data screen for bob environmental. Actively taking data so the elapsed time is 00:00:11 (11 seconds). Location section has latitude, longitude and elevation (99m). Motion section shows the phone acceleration, rotational velocity and magnetic field in the X, Y, and Z directions. Barometer shows air pressure at 1015.71 mb
Done! Finished the code that Bob Environmental that turns your iPhone and your Apple Watch into a smart sensor for science.
Now to update the App store version 😀
#SwiftUI
Ha ha I just noticed the giant shackle!
Tide predictions in Puget Sound for this Saturday and Sunday. Low tide is at 1 pm, high tide is at 8 pm. Noted on with arrows on the plot are my intended deployment and recovery times at 4 pm and 10 pm.
I have an unexpected opportunity to do a quick field test for a wave buoy/tidal inundation mooring with the watch, so planning and taking advantage of it this weekend.
We had a pod of Dall’s Porpoise escort us out to our mooring site near Qutekcak (Seward), AK.
Mangaq is Sugpiaq/Alutiiq for porpoise. 🧪🌊🦑🐬 #FieldworkFriday #AlaskaSky
Smartwatch being used for science in the wild!
An oceanographer holds a niskin bottle weighted by a shackle. Attached to the shackle is an Apple Watch, also known as a sampling device thanks to Dr. Martini’s new app!
We did an experiment today too! Except we like our buddy that fished the watch out of the water!
A grid of six versions of the real-time display with fonts that go from small to large. The most accessible dynamic fonts are cut off and need some additional work to get them to be visible.
Making progress on the phone app!
✅ Logs data
✅ Clear real-time display
✅ Adjusted user interactions for intuitive use on phone
Still need to
- Update layout for largest accessible fonts
- Add settings for phone sampling
Data collection dashboard for mobile app with default dynamic type. This looks fine with all numbers fitting in their allotted spaces.
Same data collection view with dynamic text in accessible sizing. A bunch of the numbers are cut off.
Going down the wormhole of accessibility and dynamic type for mobile apps today. Default looks great, the accessible large font does not with numbers cut off.
#SwiftUI
Someone please do the project where you track your cat.
My cat/queen was not having it.
Sent this to my kids teacher who makes all sorts of felt monsters!
And that less digits can still be meaningful. UI designed around the variance of the sensor signal.
I haven't noticed a flicker, SwiftUI seems to handle that natively. What was worse initially was not having a static sizing for each digit, the decimals places didn't line up and the numbers felt like they were jumping all around the screen.
Eventually I will add an interface with a live chart.
The refresh rate for the numbers on the view is tied to the sampling rate, in this case 0.2 seconds (10 Hz sampling) for the IMU and 10 seconds for the barometer. The 9 IMU values are pushed simultaneously from the motion sampling manager to the view.
Screen shot of the real-time data display. From top to bottom: elapsed time in minutes and seconds, location with latitude and longitude, altitude above sea level, motion data in 3-dimensions for acceleration, angular velocity and magnetic field, and the barometer at the bottom.
Still working on the UI for the real-time data display for the phone all. It's coming along, but I am not happy with it yet.
At the risk of sounding creepy, interested in downloading the app, logging some data and sharing? I am trying to look at as many types of datasets to see what we need to crowdsource data.
I have been obsessed with tilt current meters for years! So simple and low-cost
I would 100% leave this in a different tide pool (at the marine station) every day for a week and see what's what. Put it on a float off of Agassiz Beach. Let it swing in the breeze outside my office (facing the beach). So many fun little things to try! 🧐
Sort of, but not as a complete project. I’ve measured waves with the watch and worked with engineering students at UW Tacoma that 3D printed a buoy, but haven’t had a chance yet to combine both. I need to follow up with them and see there they are at.
Want to collaborate?
This is the way. 🌊🦑
🌊 cool projects for oceanography classes.
Also I am working on an update for just the phone, no watch required
Yes! I would love to hear what you do with it.
I randomly take data to see what it looks like. Walking: How does my arm swing. Driving: can I see hills in barometric pressure? Does this puddle in the backyard have a diurnal heating and cooling cycle?
Image of an apple watch tied to a prototype wave buoy floating in water. The buoy is actually a pool chlorinator.
What can you do with all the sensors on your smartwatch? Here are some ideas to get you started.
- Build a Wave Buoy
- Measure Tidal Inundation
- Deploy as a stream gauge
- Classify road quality while bicycling
and 10 additional projects below.
www.tiniscientific.com/field-projects
At the price of 1 apple watch + 99¢ for the app, this is an order of magnitude less than commercial instruments.
YES. I think that might be compulsory.
Took a kiddo to the dentist this morning and they got to listen to the dentist music of my youth: easy listening.
Doobie Brothers
Fleetwood Mac
The Cars
Hall & Oates
Kenny Loggins
It was glorious.
Can I put sensors on those marine invertebrates?
