← All Apple listings

555 Timer & Oscillators Guide

by ALG Software Lab SIA more by this developer →

View in the Apple store ↗

Compare with another extension

Category: Education

Description

Master the design of oscillators and waveform generators using 555 timer integrated circuits, digital logic integrated circuits, operational amplifiers, and transistors.

The application provides a comprehensive collection of over 130 tutorials and circuit diagrams, covering 555 timer circuits and practical applications, CMOS 4000 series logic oscillators, TTL 74LS and 74HC series oscillators, operational amplifier–based waveform generators, and transistor multivibrators. Designed for electronics beginners, students, hobbyists, and professional engineers, the app serves as a complete reference and learning tool for designing, understanding, and building oscillators, multivibrators, pulse generators, and waveform circuits commonly used in both analog and digital electronics.

In addition to tutorials and schematics, the app includes built-in calculators for frequency, timing, duty cycle, and component value estimation, helping users quickly calculate and adjust circuit parameters. All topics are presented with clear circuit diagrams and detailed explanations.

Available in 14 Languages:
• English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language!

Covered Topics:

• 555 Timer IC Series
• Astable, monostable, and bistable modes
• Pulse Width Modulation (PWM)
• Voltage conversion circuits
• Sensor and external module interfacing
• CMOS Logic Oscillators
• CMOS 4000 series circuits
• Astable, monostable, and bistable modes
• Gated CMOS oscillators
• TTL / HC Logic Oscillators
• TTL 74LS series circuits
• 74HC series logic oscillators
• Astable and monostable modes
• Operational Amplifier Oscillators
• Sine wave generators
• Square-wave pulse generators
• Triangle wave generators
• Transistor-Based Oscillators
• Transistor-Based Astable multivibrators
• Transistor-Based Monostable multivibrators

The content is regularly updated and expanded with each new release, ensuring the latest tutorials and circuit examples are always available.

Alternatives to 555 Timer & Oscillators Guide

Name	Ratings	Rating
Blossom - Plant Care Guide by Mosaic S.r.l.	68,743	4.6	compare
Visual Countdown Timer by Fehners Software LLP	40,617	4.6	compare
RiseGuide: Self Improvement by CELEB INNOVATIONS LIMITED	18,835	4.6	compare
Little Timer Hatch Countdown by Little Labs LLC	15,080	4.5	compare
Time Timer by Time Timer LLC	14,540	4.6	compare
FaithStudy – Bible Study Guide by FORERUNNER TECHNOLOGY LIMITED (HK)	12,429	4.9	compare
PROmote - Army Study Guide by DeCesha, Inc.	6,146	4.8	compare
Focus Tree: Timer & Flashcards by Focus Labs	5,655	4.7	compare
Star Guide: Night Sky Map by Clauma Marketing GmbH	4,262	4.5	compare
Plant Guru - Plant Care Guide by AIBY Incorporated	3,665	4.4	compare

Growth

Change in ratings, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.

History

Tracking since 09/05/2026. History accumulates as changes are observed — check back soon.