Model RC - Radio Control _ battery alarm2

355

03:28:05

The switch simulates the main battery dropping to a low voltage ( flat). The led is a peizo electric transducer, noisy to indicate the standby battery has taken over. The 5v battery is normal operation. The 2.9 battery simulates the main battery going flat or faulty. The 3.7v battery is the backup to supply the receiver and the peizo buzzer.

published 12 years ago

makwana

10 years ago

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