Electronics is about the tiny parts that make gadgets work, from resistors to computer chips. You'll learn to read circuit diagrams, solder, and build a project of your own. It's a great start if you like taking things apart and figuring them out.
Why it's worth it
Every gadget you own is a circuit board full of tiny parts doing simple jobs very fast. This badge teaches you to read a schematic, solder parts onto a board, think in binary, and use Ohm's law to predict what a circuit will do before you build it. Once you can build a blinking light or a simple logic circuit, you're on the path to robots, radios, game controllers, and anything else you can imagine.
Start this week
- Draw the circuit of a flashlight: battery, switch, and bulb. That's your first schematic.
- Ask your Scoutmaster for the name of an Electronics counselor, and contact them with a parent copied.
- Write the numbers 1 through 10 in binary. It takes about five minutes once you see the pattern.
- Ask your counselor or a maker space whether you can borrow a soldering iron and practice board while an adult supervises.
Stay safe
- Soldering irons reach several hundred degrees. Work with an adult, wear safety glasses, keep the iron in its stand, ventilate fumes, and wash your hands after handling solder.
Requirements · 6
Every official requirement and part, numbered to match Scouting America, in plain language. Sign off against the official wording (opens in a new tab).
- Requirement 1
Describe the safety steps to take when using, building, modifying, or repairing electronic devices
Tip: Make a short list of safety rules for your workspace, like eye protection, ventilation, and where to rest a hot soldering iron.
- Requirement 2
Schematic diagrams
Tips for this section: Start with a simple circuit that uses a resistor, a capacitor, and a transistor or chip, like an LED blinker. Draw it with standard symbols and explain what each part does.
Example for this section: Draw a simple LED blinker built around a 555 timer chip: a 9-volt battery, a few resistors, a capacitor, the chip, and an LED, each labeled with standard symbols. Explain that the capacitor charging and emptying sets the blink speed, and a resistor limits current so the LED doesn't burn out.
- Requirement 2a
Draw a simple schematic with correct symbols that includes resistors, capacitors, and transistors or integrated circuits, labeling every part
- Requirement 2b
Explain what each part in your schematic does
- Requirement 3
Soldering
Tips for this section: Practice on scrap boards first, with an adult nearby. Use a heat sink or clip to protect parts that don't like heat.
Example for this section: On a scrap board, solder five joints that look like shiny little volcanoes, not dull blobs. Then remove one part with a desoldering pump or braid, and clip a heat sink on an LED's leg while you solder it.
- Requirement 3a
Demonstrate proper soldering and desoldering
- Requirement 3b
Show how to keep electronic components from being damaged by heat
- Requirement 3c
Explain what a printed circuit board does and the precautions to take when soldering one
- Requirement 4
Control, digital, and analog electronics
Tips for this section: Practice converting a few numbers to binary each day. Then build a small logic project from a kit or a guide.
Example for this section: Convert 13 to binary: 8 + 4 + 1, so 1101. Then build a simple logic project, like two switches wired so an LED lights only when both are on (an AND gate), and explain how that's how computers make decisions.
- Requirement 4a
Discuss with your counselor
- Requirement 4a1
Discuss how electronics can be used to control something
- Requirement 4a2
Explain the basic ideas behind digital logic
- Requirement 4a3
Discuss how electronics can be used in three different analog applications
- Requirement 4b
Show how to convert three decimal numbers to binary and three binary numbers to decimal
- Requirement 4c
Build a circuit project. Choose 1 of 3
- Requirement 4c1
Build a control device, find or draw its schematic, and explain to your counselor as best you can how the circuit works
- Requirement 4c2
Build a digital circuit, find or draw its schematic, and explain to your counselor as best you can how the circuit works
- Requirement 4c3
Build an analog circuit, find or draw its schematic, and explain to your counselor as best you can how the circuit works
- Requirement 5
Circuits, testing, and assembly
Tips for this section: Work several Ohm's law problems on paper, then check them with a multimeter on a real circuit.
Example for this section: Work a problem: a 9-volt battery and a 450-ohm resistor give I = V / R = 0.02 amps, or 20 milliamps. Then measure the real voltage and current with a multimeter and explain why they're a little different.
- Requirement 5a
Show how to use Ohm's law to solve a simple problem with current, voltage, and resistance
- Requirement 5b
Explain why test equipment is needed in electronics and how it's used; name three types and describe how each works
- Requirement 5c
Show your counselor how to read a resistor's color bands to find its resistance
- Requirement 5d
Explain how through-hole and surface-mount assembly differ and give three advantages of each
- Requirement 6
Name three careers that use electronics skills; for one of them, research its training, education, certification, experience, and costs, plus job outlook, starting pay, and advancement; discuss with your counselor what you learned and whether the career interests you
Tip: Talk with an electronics technician or engineer, or look up jobs in robotics, repair, and design.
Places to visit
Ask an adult to set it up, and go with your family, den, patrol, or crew.
A maker space, robotics team, or amateur radio club
See people soldering, programming, and building projects, and get hands-on help from experienced builders.
How: Go with a parent or buddy during an open night. An adult can call ahead to ask about youth programs and safety rules.
An electronics repair or manufacturing shop
Watch technicians test boards, find faulty parts, and repair real devices.
How: Have an adult call and ask whether a technician could show your patrol their bench for a short visit.
Where it can lead
- Electronics technicianBuilds, tests, and repairs equipment; often trained at a community college or in the military.
- Electrical or computer engineerDesigns circuits and chips for phones, cars, and medical devices.
- Avionics technicianMaintains the electronic systems on aircraft.
- Robotics technicianBuilds and repairs robots used in factories, hospitals, and warehouses.
Ask yourself
- What did you think was inside your devices before this badge, and what do you think now?
- What went wrong the first time you soldered, and how did you fix it?
- How did it feel when a circuit you built worked, or when it didn't?
- Which part of electronics do you want to keep exploring: building, programming, or repairing?
Good questions to ask your counselor or an electronics technician
- What was the first circuit you ever built?
- How do you track down a problem when a circuit doesn't work?
- What tools would you buy first if you were starting out on a small budget?
- How has electronics changed since you started working in it?
- Which jobs in electronics need a degree, and which can I train for another way?
Helpful reads
- Earning a merit badge, step by step, From picking a badge to getting the final signature: how to find a counselor, set up meetings safely, work the requirements, and keep your progress., Youth · Families · 6 min read
- Contacting counselors, experts, and organizations, Email and phone scripts, who to ask for, how to follow up, and how to say thanks, with a parent copied every time., Youth · Families · 7 min read
- Choosing your next merit badge, How to pick a badge you'll actually finish: start with what you care about, balance Eagle-required and just-for-fun badges, and make the most of camp., Youth · Families · 6 min read
For leaders & parents
- Host a soldering workshop with adult supervision, safety glasses, and a few simple kits.
- Look for a local maker space or amateur radio club that can mentor Scouts.
People & places that can help
- Merit badge counselor — Talk with them early; they can explain what's expected.
- Local maker space or robotics club — Tools, parts, and people who love helping beginners.
- ARRL, the national association for amateur radio (opens in a new tab) — Amateur radio clubs often help with electronics projects.
- PhET Circuit Construction Kit (opens in a new tab) — Build virtual circuits and measure voltage and current before you build a real one.
- Khan Academy: Circuits (opens in a new tab) — Free lessons on Ohm's law, resistors, and circuit analysis.
- FIRST (opens in a new tab) — Robotics programs and teams for students from elementary through high school.
Pairs well with
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Tips, examples, and questions are ideas from experienced leaders, not extra requirements. Your unit leader or counselor decides when a requirement is complete.