ANTI STUMBLING CIRCUIT
A circuit not very different from a common metronome but unlike the musical circuit, in this case we have to control both the beat frequency and the duty cycle of the wave. Two common integrated circuits have been chosen for the realization such as the 555 because we can delegate to the first integrated the management of the beat frequency and to the second the note to be heard in the earphone, the 555 also has output power at pin 3 such as to drive a 32 ohm earphone. The circuit works with a common 12V battery and, if kept at low volumes, the duration is considerable.
Components
D1 1N4148
D2 1N4148
D3 1N4148
VR1 3386P-1-101LF
J1 282843-2
C2 C1206C103K5RACTU
C3 C1206C103K5RACTU
C4 C1206C103K5RACTU
R3 CRCW12064K70FKEA
R4 CRGH1206J22R
BR1 ECA-2WHG010
C1 ECA1CM470B
C5 ECA1EHG101
R5 ERA-8AEB103V
R6 ERA-8AEB103V
R2 MC0125W12065100K
J4 MJ-3523-SMT-TR
IC1 NE555P
IC2 NE555P
J2 PVG3A205C01R00
J3 PVG3A205C01R00
R1 RC1206FR-073K3L
ANTI STUMBLING CIRCUIT
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