picoBAT: ultrasonic bat detector

Think you have bats in the belfry? If you have a PIC 12F683, ultrasonic piezo receiver and piezo speaker, micro-examples has a project that purports to detect the presence of bats and sound a piezo alarm. The schematic and C source are available for download.

We can envision a modification which would transmit an alert wirelessly for remote bat detection in areas such as an attic.

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