beginner electronicsBeginner STEM Projects That Do Not Require Soldering
Try beginner STEM projects without soldering using breadboards, LEDs, switches, low-voltage batteries, simulations, and reusable parts.
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Teaching notes, project walkthroughs, and hands-on electronics guides from Gary and the Mr Circuit team.
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Updated Jul 22, 2026
beginner electronicsHow to Build a Continuity Tester on a Breadboard
Build a simple continuity tester on a breadboard and teach students how to check whether a circuit path is complete before troubleshooting.
beginner electronicsHow to Build a Burglar Alarm Circuit on a Breadboard
Build a simple burglar alarm circuit on a breadboard with a switch, transistor, buzzer, and battery using this safe classroom walkthrough.