SMTP Doorbell
This is my first Raspberry Pi project using Python script and any type of sensor programming. I combining these two simple python scripts.
Button / SMTP and my doorbell sensor is a Elk 930 Doorbell Detector I could not find any examples on the net, making a smart doorbell, connecting
a standard wired doorbell 110v transformer and sending a SMS Message. Now includes image from video surveillance system.
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I thought it would be cool to build a weather station. So I found some GitHub projects that I thought would be interesting.
Now it was not as easy as compile and upload, I found that these projects were abandon and drivers and libraries very hardware and version spacific
and not supported or updated. The base code was well written, kudos to Xinyuan-LilyGO as it's very configurable.
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I thought it would be cool to know when my mailbox was opened and receive a text with an image. This is my second Raspberry Pi project.
It has the same concept as the doorbell but uses a reed sensor and webcam. I thought about a wireless solution but did not want to mess
with batteries so I trench a low voltage line to the mailbox.
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I thought it would be cool to build a Sonos volume display to work around an LG TV + Sonos soundbar limitation where volume changes only show + and –, with no numeric feedback. Since this is a known issue with no clear vendor fix, I implemented my own solution.
Using the Sonos Control API, I poll the getVolume endpoint to retrieve the current volume level. After validating OAuth authentication and token handling in Postman, I implemented the client on an ESP32 with built-in Wi-Fi and a 1.47″ display. The Arduino sketch connects to Wi-Fi, authenticates to the Sonos API, fetches the volume over HTTPS, parses the JSON response, and displays the numeric value in real time.
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I would love to know what you think of any of my application.
