PLC programming · Free · ₹0
OpenPLC: IEC 61131-3 on Arduino, ESP32 and Raspberry Pi
A real PLC for the price of a microcontroller: OpenPLC Editor and Runtime, ladder from contacts to arithmetic, timers and counters, sixty worked programs, Arduino, ESP32 and Raspberry Pi hardware, Modbus, MQTT, Python, ScadaBR and Fuxa HMIs, Factory I/O projects, and the FOSSEE OpenPLC from IIT Bombay.
What you will learn
Install OpenPLC Editor and Runtime, write IEC 61131-3 ladder with contacts, coils, memory bits, set/reset, edges, timers, counters, comparison and arithmetic, solve sixty worked problems, run programs on Arduino, ESP32 and Raspberry Pi, communicate over Modbus, MQTT and Python, build ScadaBR and Fuxa HMIs, drive Factory I/O scenes with SFC, and program the FOSSEE OpenPLC with LDmicro.
- Install the Editor and Runtime and simulate programs
- Write ladder with contacts, coils, memory bits, SR/RS and edge triggers
- Use TON, TOF, TP, CTU, CTD, CTUD, comparison and arithmetic blocks
- Solve sixty worked automation problems
- Run OpenPLC on Arduino, ESP32, ESP8266 and Raspberry Pi with slave devices
- Communicate over Modbus, MQTT and Python; build ScadaBR and Fuxa HMIs
- Drive Factory I/O scenes and use SFC
- Program the FOSSEE OpenPLC from IIT Bombay with LDmicro
Course content
13 modules · 115 lessons · 21h 33m
In order, at whatever pace suits you. Each module ends with a practice task that builds on the last, and a short quiz.
- 01What OpenPLC Is; Editor and Runtime5 lessons1h 20m
- 02Contacts, Coils and Logic Gates6 lessons57m
- 03Memory Bits, Set/Reset, Edges and First Programs7 lessons1h 26m
- 04Timers5 lessons60m
- 05Counters and Comparison9 lessons1h 42m
- 06Arithmetic6 lessons59m
- 07Worked Examples I9 lessons1h 25m
- 08Worked Examples II14 lessons2h 49m
- 09Hardware: Arduino, ESP32, ESP8266, Raspberry Pi15 lessons2h 32m
- 10Communication and HMI: Modbus, Python, MQTT, ScadaBR, Fuxa5 lessons1h 33m
- 11Factory I/O Projects and SFC9 lessons1h 51m
- 12FOSSEE OpenPLC with LDmicro (IIT Bombay)24 lessons3h 59m
- 13Final Assessment1 lesson18m
Requirements
- Who it is for
- Beginner. No PLC or electronics experience needed.
- Software
- OpenPLC Editor and Runtime (open source), optional Factory I/O trial, ScadaBR or Fuxa
- Hardware
- Optional Arduino, ESP32 or Raspberry Pi; everything runs in simulation without them.
OpenPLC: IEC 61131-3 on Arduino, ESP32 and Raspberry Pi at a glance
OpenPLC: IEC 61131-3 on Arduino, ESP32 and Raspberry Pi is a free, self-paced online plc programming course from EDWartens India with 13 modules, 21h 33m of video lessons, written notes, practice tasks and assessments, and an optional verifiable certificate.
- Price
- ₹0, free for good. No trial, no card.
- Format
- 13 self-paced modules, 21h 33m of video, written notes, a quiz per module and a final assessment.
- Level
- Beginner. Beginner. No PLC or electronics experience needed.
- Brand
- Vendor-neutral
- Software
- OpenPLC Editor and Runtime (open source), optional Factory I/O trial, ScadaBR or Fuxa
- Hardware
- Optional Arduino, ESP32 or Raspberry Pi; everything runs in simulation without them.
- Certificate
- Optional EDWartens Certificate of Completion, ₹700, verifiable by code. Not a vendor credential.
- Video lessons by
- Instrumentation Tools, Eric Romine, Igor Art, OnosTech, seafox c, Spoken-Tutorial, IIT Bombay (independent creators, credited below)
- Language
- English
A shareable EDWartens certificate
Finish every module and pass the final assessment, and you can buy a certificate for ₹700. It carries a unique verification code on a public page anyone can check, so it stands up when a recruiter looks it up.
- Add it to your LinkedIn profile in one click
- Link it from a CV or portfolio, the URL is permanent
- Publicly verifiable by code, not a PDF anyone can edit
- Issued by EDWartens India, the training centre itself
The course itself stays free whether or not you ever buy one.
Stuck? Ask a practising engineer
A free course usually means a comment section and hope. This one does not. Every module has an Ask-your-trainer panel that reaches the same engineers who teach our paid programme: people who commission panels for a living, not moderators.
- Questions answered in the context of the module you are on
- The same engineers who teach the AEP programme
- Career tools, CV help and public job listings included
- Your progress and notes stay in your account for good
Pairs well with
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PLC programming · FreeAllen-Bradley RSLogix 500 and MicroLogixThe MicroLogix and SLC 500 on real hardware: file-based addressing, every instruction group, analog scaling, faults and forces, in RSLogix 500.Common questions
Is OpenPLC a real PLC?
It is a real IEC 61131-3 runtime used in research, education and small projects. It is not a certified industrial controller; the skills transfer directly to Siemens, Rockwell and CODESYS.
Do I need an Arduino?
No. Simulation covers the programming modules; an Arduino Uno or ESP32 costs a few hundred rupees and makes the hardware modules real.
What is the FOSSEE OpenPLC?
An open-hardware PLC from IIT Bombay's FOSSEE project, programmed with LDmicro. It is a different product from the OpenPLC Editor/Runtime and is covered in its own module.
Is the course really free?
Yes. Every module, practice task and assessment. You create an account so your progress is saved and the assessments can be marked. The certificate is the only paid item, and only if you want it.
What certificate do I get?
An EDWartens Certificate of Completion, issued when you pass the final assessment, with a verification code anyone can check. It is not an OpenPLC project or IIT Bombay credential and is never described as one.
Who made the video lessons?
The creators named in the Credits block at the foot of this page, on their own YouTube channels. EDWartens did not make the videos and the creators are not affiliated with EDWartens. What EDWartens wrote is the study plan, the notes, the practice tasks and the assessments.
Credits
Who made the video lessons
The video lessons in this course were created by the people below, not by EDWartens. Every lesson streams from its creator's own YouTube channel; EDWartens neither hosts nor sells that footage, and the creators are not affiliated with EDWartens and do not endorse this course. What EDWartens wrote is the study plan, the notes, the practice tasks and the assessments.
- Instrumentation Toolsthe OpenPLC tutorial and worked-example series
- Eric Rominethe OpenPLC basics on Arduino, Raspberry Pi, Python and ScadaBR
- Igor Artthe OpenPLC v4, ESP32 and MQTT videos
- OnosTechthe OpenPLC on ESP32 series
- seafox cthe Factory I/O, SFC, ScadaBR and Fuxa projects
- Spoken-Tutorial, IIT Bombaythe FOSSEE OpenPLC with LDmicro series
If you are one of these creators and would like a lesson removed or credited differently, write to info@wartens.com.