PROTO - circuit simulator

In-app purchases
4.1
8.67K reviews
1M+
Downloads
Content rating
Rated for 3+
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About this app

Are you looking for tools like Multisim, SPICE, LTspice, Proteus or Altium? That's great! PROTO is an real time electronic circuit simulator which means you are able to setup a circuit with various components and simulate behaviour of the electronic circuit.
During simulation you can check voltages, currents and many other variables. Check signals on multichannel oscilioscope and tune your circuit in real time! Our app can greatly help with your Raspberry Pi, Arduino or ESP32 project. You can also use PROTO as logic circuit simulator and perform digital electronic analysis!

* You can report an issue or make component request at https://github.com/Proto-App/Proto-Android/issues *

Features:
+ Animations of voltage values and current flows
+ Adjusts circuit parameters (like voltage, current and other)
+ Four-channel oscilloscope
+ Single play/pause button to control simulation
+ Copy electronic components
+ Learn about electronic circuits by examples in app
+ Share circuit with friends
+ Themes (Dark, Light, Ocean, Solarized)
+ PNG, JPG, PDF circuit export
+ Export workspace
+ Video tutorials about electronics
+ Arduino support in future

Components:
+ DC, AC, Square, Trinagle, Sawtooth, Pulse, Noise voltage source
+ Current source
+ Resistor
+ Potentiometer
+ Capacitor
+ Polarized capacitor
+ Inductor
+ Transformer
+ Diode (rectifying diode, LED, Zener, Schottky)
+ Transistor (NPN, PNP, N and P channel Mosfet)
+ Switches (SPST, Relay)
+ Bulb
+ Operational amplifier
+ Timer 555 (NE555)
+ Digital Gates (AND, NAND, OR, XOR, NOR, NXOR, Inverter)
+ Voltmeter
+ Ammeter
+ Fuse
+ Photoresistor (uses phone light sensor)
+ Analog-to-digital converter (ADC)
+ Accelerometer (uses phone accelerometer sensor)
+ FM source
+ Logic Input
+ Memristor
+ Logic output
+ Probe
+ Voltage rail

Analog Pack:
+ Tunnel diode
+ Varactor
+ NTC Thermistor
+ Center tapped transformer
+ Schmitt trigger
+ Schmitt trigger (inverting)
+ Solar cell
+ TRIAC
+ DIAC
+ Thyristor
+ Triode
+ Darlington NPN
+ Darlington PNP
+ Analog SPST
+ Analog SPDT
Digital Pack:
+ Adder
+ Counter
+ Latch
+ PISO Register
+ SIPO Register
+ Seven segment decoder
+ Sequence generator
+ D Flip-flop
+ T Flip-flop
+ JK Flip-flop
+ Multiplexer
+ Demultiplexer
+ Voltage controlled current source (VCCS)
+ Voltage controlled voltage source (VCVS)
+ Current controlled current source (CCCS)
+ Current controlled voltage source (CCVS)
+ Optocoupler

Misc Pack:
+ Wobbulator
+ AM Source
+ SPDT Switch
+ Digital to analog converter (DAC)
+ Antenna
+ Spark gap
+ LED Bar
+ 7 segment LED
+ RGB LED
+ Ohmmeter
+ Audio input
+ Microphone
+ Device battery
+ DC Motor
+ 14 segment LED
+ Diode bridge
+ Crystal
+ Voltage regulators (78xx family)
+ TL431
+ Buzzer
+ Frequency meter

JavaScrip Pack:
+ Write code
+ JavaScript interpreter (ES2020 class)
+ Access to IC inputs in code
+ Access to IC outputs in code
+ Four custom ICs

7400 TTL Pack:
+ 7404 - hex inverter
+ 7410 - triple 3-input NAND Gate
+ 7414 - hex Schmitt-trigger inverter
+ 7432 - quadruple 2-input OR gate
+ 7440 - dual 4-input NAND buffer
+ 7485 - 4-bit magnitude comparator
+ 7493 - binary counter
+ 744075 - triple 3-input OR gate
+ 741G32 - single 2-input OR gate
+ 741G86 - single 2-input XOR gate

4000 CMOS Pack:
+ 4000 - dual 3-input NOR gate and inverter.
+ 4001 - quad 2-input NOR gate.
+ 4002 - dual 4-input NOR gate.
+ 4011 - quad 2-input NAND gate.
+ 4016 - quad bilateral switch.
+ 4017 - 5-stage Johnson decade counter.
+ 4023 - triple 3-input NAND gate.
+ 4025 - triple 3-input NOR gate.
+ 4081 - quad 2-input AND gate.
+ 4511 - BCD to 7-segment decoder.

Sensors pack:
+ Pressure
+ Gyroscope
+ Light
+ Magnetic field
+ Proximity
+ Temperature
+ Humidity
Updated on
Jun 22, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Financial info, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.0
8.19K reviews
claude tschepen
May 12, 2024
works incredibly well for me (hobby/amateur). intuitive, easy to learn, well featured, stable, low on bugs. it seems to have all the components I want/wanted to test. i use it in conjunction with drawings, calculations and breadboards to learn, develop and build and to confirm values and function. very inpressed and happy with the product, the add-on features and payment structure.
26 people found this review helpful
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Little Eros
May 14, 2024
It can immediately simulate once the circuit is done. An application that is light and excellent for people like trying to grasp the fundamentals pf electronics circuit. Offline, lightweight, and user-friendly.
20 people found this review helpful
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Raymond Stirling
February 20, 2024
Worked great for about an hour. Seams to work well . Then, it just refuses to work on a simple circuit I made up . It seems to have a time limit. It's really annoying. So, I was not able to test . Even after resetting, the save circuit is showing but not active. Solved the schematic doesn't like 3 connections to 1 point . One needs to understand the speed of the emulator, i.e., micro sec & and ms, etc . To get the correct results. If frequency was also shown might help, the novice .
27 people found this review helpful
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PROTO
February 16, 2024
Hello Raymond, our app does not have time limits. Please share your circuit via mail: proto.playstore@gmail.com. We will try to debug this issue. Best Regards PROTO Team

What's new

> CIRCUIT IMPORT - you can import any circuit into simulation, simply tap on IMPORT button from the right menu.

> Wires can show current value and directionname for input and output terminals

> More HELP videos:
- JPG/PNG/PDF Export
- Themes
- Circuit import

> Fix crash on Examples screen