Become a Member
Members Only​
Article

Acoustic Spirit Level / Tilt Alarm

An ATtiny45 design with many uses

Acoustic Spirit Level / Tilt Alarm
Acoustic Spirit Level / Tilt Alarm
This little project was inspired by a tilt sensor circuit which first appeared in our 2010 Special Projects Edition. The idea was to build a simple multi functional tilt sensor. The resultant design has two main uses; it functions as an acoustic three-axis spirit level or a security movement detector.
Log in here as a subscriber to read the article.

Continue reading this Elektor article?​

Try a digital membership (Green) for 6 months for only €5.33 per month.​​
  • Unlimited access to online Member Only articles
  • 3 new editions Elektor Magazine (digital)
  • More than 5000 Gerber files
  • 20% member discount on e-books (at elektor.com)
  • 10% member discount on Products (at elektor.com)
Try for 6 months.
Stops Automatically.
What is Elektor Exclusive?

Materials

Component list

COMPONENT LIST
Resistors
R1,R3,R5 = 470kOhm
R2,R4,R6 = 330kOhm
R7 = 100Ohm
R8 = 220Ohm
Capacitors
C1,C3,C4,C5 = 100nF
C2 = 1µF
Semiconductors
IC1 = ATtiny45, programmed, Elektor # 120633-41 [3]
IC2 = LP2950 CZ3,3
D1 = LED, red
Miscellaneous
MOD1 = module with MMA7260QT tilt sensor installed (Elektor # 090645-91, limited to stocks)
Bz1 = piezo transducer (not a buzzer)
S1 = pushbutton with make contact
S2 = on/off switch
K1 = 2-pin PCB screw terminal block, 5mm pitch

Discussion (0 comments)

Embed Code