Use lithium batteries. They perform so much better in colder climates. I live where it gets to -30C and I use lithium batteries in my outdoor weather station sensors.
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Agreed. I hope Wyze puts Li-ion batteries in their sensors, but I haven’t checked. What I’m wondering is how much better they perform. Do they last two months instead of just one (which still isn’t enough IMO) or is it even better than that? (It gets that cold in Chicago, too.)
does anyone know where I can see more on using/writing short cuts?
https://support.wyzecam.com/hc/en-us/articles/360030764911-Schedules-and-Automations
How to create a shortcut:
- To add a shortcut, tap […] in the top-right of the Home screen of the Wyze app. Then, tap Edit Shortcuts.
- At the bottom of the next screen, tap Create Shortcut.
- Enter a name and set your icon by tapping the current icon. It will allow you to select from five icon types: I’m home, I’m away, Go to bed, Wake up, and Other. Tap the icon you want.
- Add an action. There is no limit to how many actions a single device can perform in a trigger or how many devices can be affected by a trigger. You can even select a group of Wyze Cams to have the entire group affected by whichever Action you select.
- Wyze Cam v1/v2 – Turn motion detection on/off, restart the camera, and upload a 12-second video to the cloud, Turn notifications on/off
- Wyze Cam Pan – Turn motion detection on/off, restart the camera, upload a 12-second video to the cloud, Turn notifications on/off, and reset position
- Note:The 12-second videos will show up as an “auto scene event” in the Notifications tab.
- Tap Save to save the action
- Tap the back arrow to return to the Shortcut page or tap Edit to delete or rearrange your actions.
- If you would like to automate your shortcut on a schedule or an event, toggle on Automate and choose an Event or Time of day and days of the week to automate the action.
- Tap Done in the upper right corner to save your shortcut.
- To check if your shortcut is working, go to the Account tab and tap on Shortcut History . It will show if a shortcut was triggered, when it triggered, and if it was successful or failed to complete.
How to modify a shortcut:
- To edit a shortcut, tap on the […] in the top-right of the Home tab of the Wyze app. Then tap Edit Shortcuts.
- On the next screen, tap the shortcut you want to edit.
- To delete a shortcut, tap Edit in the upper left corner of the Shortcuts screen and tap on the Delete button next to the shortcut you want to delete.
- To rearrange a list of shortcuts, tap Edit in the upper left corner of the Shortcuts screen. Tap and drag the two lines on the side of the Shortcut that you’d like to rearrange.
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You are correct about getting the notifications every time the door opens or closes. I’m OK with that for the moment but will be researching other options before moving to the light bulb solution.
Here’s a post I wrote earlier that outlines one alternative.
I use IFTTT to smartthings to webcore to achieve this. doors close if there is no motion in the garage for 10 minutes. If motion starts again before closing… reset the timer.
$10 battery. Where do you live?? I am also curious because my sensor is installed in the coldest spot on the door. We will see in a few months.
I’m outside Chicago, and even with an insulated garage, it gets pretty cold in there. I don’t want to burn a $10 battery every month of winter, especially when it’d be cold when I have to replace it. If that’s the case, it’d be cheaper (and lazier) to buy a small powered PCB with a connected door sensor and avoid the issue altogether.
What ?
CR1632 batteries don’t cost $10 for one battery
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EBay has a 2 pack CR1632 for $1.79 and free shipping. 
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I was only repeating what the previous poster said. (They’re on Amazon for 20 for $10.) But it’s not about the cost–I don’t want to have to replace the battery more than, say, twice a year.
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Sold by CELEWELL® and Fulfilled by Amazon.
https://www.amazon.com/gp/product/B06XQF1578/ref=ox_sc_act_title_1?smid=A3AKWD07R3ZO85&th=1
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Even that’s expensive. 
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I can’t say if those are good or bad , never had any
I am in the burbs of Chicago. I have had mine since they came out. I have 2 motion sensors in my garage and they are still running the original batteries. I am willing to sacrifice a few for science to see how they last during the winter.
Summer testing has gone well so far.
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That’s creative but a just a single contact sensor would be simpler i think. I’m sure you’ve got your reasons, it is something that you could easily thought of.
Have one set up on my garage door here in central Illinois. I’ll know more this winter when we hit sub zero temperatures. So far so good though. Garage door goes up lights inside come on. Also notifies me that door is closed, I sometimes forget.
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Ok Steven. Can you please share what link you are using to the lights from the sensor?
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You can create a rule in the Wyze app to turn on lights when the sensor opens.