Learn Electronics & Arduino vs TinyOhms

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

TinyOhms opens straight onto a breadboard. Drop in a battery, a resistor and an LED, and the circuit runs the moment the loop closes. Current flows along the wires as moving chevrons, the LED glows brighter or dimmer with the real numbers, and if you push too much current through it, it pops. Nothing to install, nothing to solder, nothing to break. REAL PARTS, REAL MATH Every component behaves like the one in the drawer: resistors follow Ohm's law, LEDs have a forward voltage, transistors amplify, capacitors charge and drain, and the 555 timer ticks at the frequency its resistors and capacitor set. Under the hood is a full circuit solver (the same kind of nodal analysis SPICE uses), so the readouts are the ones you would measure with a meter. SEE WHAT IS HAPPENING • Live current flow on every wire, with direction and strength • Inspect mode: tap the eye to read every node voltage and branch current • A built-in scope that traces voltages over time — watch a capacitor charge, or a 555 output square wave • Real sound: buzzers beep and piezo speakers play the pitch the circuit sets • Room-light and temperature sliders to drive light sensors and thermistors • Short-circuit and overload warnings before anything "burns" BUILT FOR LEARNING TinyOhms is made for teens and any complete beginner. There is no lesson to sit through: build, watch, change one thing, and see what happens. Twenty ready circuits take you from a single LED to a light-following night light, a blinking timer, a one-shot pulse, a pitch control you can hear, and a traffic-light sequencer built from a 555 and a 4017 counter. YOUR OWN LIBRARY Sign in with just your email (a code, no password) to save circuits to your library and open them on the TinyOhms website Workbench too. Export any board as a SPICE netlist or share the board file. ON THE BENCH Free: wire, jumper, batteries (3 V, 4.5 V, 9 V), resistor, LED, switch, push button, buzzer, light sensor (LDR) and NPN transistor — everything the beginner projects need. TinyOhms Pro (optional monthly subscription): potentiometer, capacitor, 1N4001 diode, DC motor, thermistor, piezo speaker, the 555 timer and the CD4017 counter. Circuits from the library always open in full, whether or not you subscribe. TinyOhms Pro renews monthly until cancelled in Settings › Apple Account › Subscriptions. Under 18? Ask a parent first. Terms: https://tinyohms.com/terms/ Privacy: https://tinyohms.com/privacy/