USBChirperV4-2 Rev2
author: Kthal
2 layer board of 0.71 x 0.49 inches (17.9 x 12.3 mm)
Uploaded:
March 26, 2019
Shared:
April 25, 2019
Total Price:
$1.70
Inconspicuous USB powered noise-maker. Uses a basic 555 timer circuit to beep periodically.
Parts list:
U1: 555 chip, SOIC package
USB: Male, type A, USB connector
B1: 5v buzzer (12mmØ) - Make sure to find one with an “internal drive”, this means that it will make its own sound signal
For 330 seconds between 0.33 second beeps:
C1: 47μF ceramic capacitor, 1206 package
R1: 10kΩ resistor, 0805 package
R2: 10MΩ resistor, 0402 package
Inconspicuous USB powered noise-maker. Uses a basic 555 timer circuit to beep periodically.
Parts list:
U1: 555 chip, SOIC package
USB: Male, type A, USB connector
B1: 5v buzzer (12mmØ) - Make sure to find one with an “internal drive”, this means that it will make its own sound signal
For 330 seconds between 0.33 second beeps:
C1: 47μF ceramic capacitor, 1206 package
R1: 10kΩ resistor, 0805 package
R2: 10MΩ resistor, 0402 package
