Learn Electronics & Arduino vs Ohmira

Learn Electronics & Arduino takes you from absolute zero to building real Arduino, ESP32 and Raspberry Pi projects: no prior experience and no hardware required. It is electronics for beginners that keeps going long after the basics: try every idea before you buy an Arduino starter kit, or practice with the kit you already have. Everything runs on your phone. Write real Arduino sketches in the built-in code editor and watch them run on an interactive 3D board that reacts live: blink LEDs, read sensors, drive servos and motors, and play tones, all simulated on-device. WHAT YOU GET • Step-by-step lessons that start with basic electronics and grow into complete Arduino projects • Hands-on labs, each with a guided task and a model solution • A built-in Arduino simulator that runs your code instantly: no compiler, no cables • A circuit builder Playground to wire up components and experiment CIRCUIT SIMULATOR AND PLAYGROUND Drag parts onto a virtual breadboard, wire them up and press Run. Resistors, LEDs, buttons, potentiometers, sensors, servos and motors behave the way they would on your desk, and a wiring check and power budget point out mistakes as you build. ESP32 AND RASPBERRY PI Switch the Playground to an ESP32 board (Pro), shown in 3D with its own pins, PWM, analog inputs, touch and a simulated radio. Or open the Pi Playground: an empty Raspberry Pi that is all yours. Wire parts, write Python, and find your build saved next time. BENCH: 33 TOOLS FOR REAL BUILDS • Calculators: resistor color code, Ohm's law, LED resistor, voltage divider, capacitor code, RC time, 555 timer, PWM and more • Design helpers: regulator, op-amp gain, filter, transistor and MOSFET switch, PCB trace width • Reference: Arduino and IC pinouts, component pinouts, SMD codes, logic gates, wire gauge, unit converter • Code snippets and an Arduino function reference Resistor color code, Ohm's law, LED resistor, pinouts and snippets are free; Pro unlocks the full Bench. TOPICS YOU WILL COVER • Basic electronics: voltage, current, resistance, Ohm's law, voltage dividers, series and parallel circuits • Components: resistors, capacitors, diodes, LEDs and RGB LEDs, transistors, MOSFETs, relays and buzzers • Measuring: how to read a circuit with a multimeter and find what is wrong • Arduino programming: digital and analog pins, PWM, timing, the serial monitor and debugging • Sensors and input: buttons, potentiometers, joysticks, ultrasonic distance and temperature sensors • Motion: servos, DC motors with an H-bridge, stepper motors and encoders • Displays and buses: LCD screens and I²C • Digital electronics: logic gates and how a microcontroller makes decisions • Making it real: breadboard layout, power, and soldering basics PROJECTS, CHALLENGES AND THE FAULT BENCH Follow story projects that turn lessons into things you would actually build, take on daily challenges, and track down broken circuits on the Fault Bench, the fastest way to learn how to debug. SHARE WITH OTHER MAKERS Share the circuits you build, open circuits other makers made, press Run and make them yours. CERTIFICATE (PRO) Pass the exam and earn a certificate anyone can verify with a link, ready for your CV or LinkedIn. FOR EVERYONE Whether you are a complete beginner, a hobbyist, an electrical engineering or physics student, a teacher looking for a hands-on classroom tool, or a maker brushing up the fundamentals, the lessons meet you where you are and grow with you. 10 LANGUAGES Available in English, Turkish, German, Spanish, French, Japanese, Korean, Portuguese, Russian and Chinese. Learn Electronics & Arduino Pro unlocks every world, lab, the ESP32 board and the full Bench. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period; manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://coddykit.com/terms/privacy-policy

Ohmira turns electronics into something you can see. Place real components on a grid, wire them together, press Run, and watch voltage colour the wires while moving dots show you where the current goes. No account. No ads. Nothing to sign up for. BUILD IT Drag a part onto the grid and drag between terminals to wire it. Parts snap to the grid, wires route themselves around what is in the way, and every action can be undone. Tidy a messy circuit with one tap and it redraws itself as a schematic: the source standing up on the left, the ground at the bottom. OBSERVE IT Run the circuit and it stays live. Wires take the colour of their voltage, from grey at 0 V to indigo at the supply. Dots travel along them at the speed of the current. Tap any part to read its voltage, its current and its power, or pin the readings to the canvas and watch them change as you edit. LEARN IT Thirty exercises, in three tiers, from Ohm's law to a regulated power supply. Each one gives you a brief and then checks the circuit you actually built, not a multiple-choice question about it. When it fails, it tells you why in words about your circuit: a part missing, a value wrong, a node left unwired, a reading that came out too low. WHAT IS IN THE BOX • 43 components: sources, batteries, resistors, capacitors, inductors, potentiometers, diodes, LEDs, Zeners, transistors, MOSFETs, an op-amp, bridge rectifiers, regulators, a transformer, relays, lamps, motors, buzzers, thermistors, photoresistors, and probes • DC analysis and a transient simulation that draws real waveforms • A single-channel oscilloscope with a 1-2-5 timebase, mean and peak-to-peak • Ten starter circuits, from a single loop to a MOSFET stage • Annotated zones for labelling parts of a circuit • Import and export as a file, and private iCloud sync between your iPhone and iPad MADE FOR IPHONE AND IPAD A workspace on iPad with floating panels, an Apple Pencil and a pointer welcome, keyboard shortcuts, and a canvas-first layout on iPhone. Full VoiceOver labels, Dynamic Type, Reduce Motion, Increase Contrast, and colour-blind indicators. Colour is never the only thing that carries meaning. PRIVATE BY DESIGN Your circuits live on your device. iCloud sync, if you want it, uses your own private database, never an account of ours and never a shared server. Ohmira collects no data, contains no analytics, and tracks nothing. There is no backend to leak. FREE, AND WHAT IS NOT Ohmira is free, with no time limit and no cap on how many circuits you keep. The free app includes the whole editor, fifteen fundamental parts, the full DC simulation, iCloud sync, import and export, the first ten exercises, and six starter circuits. Ohmira Complete is one purchase, with no subscription and shared with your family. It adds the other 28 components, the remaining 20 exercises, and the oscilloscope. Ohmira is a teaching simulator, not a SPICE replacement: it is built to make circuits understandable, not to certify a design for manufacture.