StarLeap · STEM 2026 · build 2026.09.23-1531

Electronics

What we've covered so far. New lessons appear here as we reach them — refresh this page to pick up updates.

Lessons

• 1The Loop
• 2The Board, the Meter & the Switch
• 3Series & Parallel
• 4Volts & Ohms
• 5Dividers & Pots
• 6Capacitors
• 7The Transistor Switch
• 8Sensors
• 9The 555 Timer

Extras & handouts

• ❖Component Field Guide
• ❖The Debugging Loop
• ❖Making Wires
• ❖The Multimeter

Under the hood optional — how it all really works

• ⚙How AC Works
• ⚙How Bridge Rectifiers Work
• ⚙How Capacitors Work
• ⚙How Transistors Work

The math shelf optional — for the curious

• ∑The Voltage Divider Formula
• ∑Kirchhoff’s Laws
• ∑Milli, Kilo, Mega
• ∑P = IV
• ∑τ = RC
• ∑Series & Parallel Resistance
• ∑Tolerance & Error
• ∑The Transistor’s Arithmetic
• ∑V = IR
• ∑What’s a Coulomb?