Freelance tech writer
This is a really fun project that I just finished in time for Halloween! It is an animatronic bear inspired by Teddy Ruxpin and it is completely controlled by cassette tapes. It has three servo motors that operate independently, all according to commands on one stereo channel of the tape while the other channel plays the audio!
Full build instructions are available on Instructables here.
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SubscriberBoard is a four-digit, seven-segment display scaled up to a size that makes it perfect for wall art! It connects to a Home Assistant home automation server and can show whatever four-digit numbers that server can send via MQTT.