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In fabricationPOWERL2

ESP32 Li-ion Battery & Power Module

Cut the cord: rechargeable power every project reuses.

Track
POWER
Level
L2
Prerequisites
1
Status
Coming soon

▸ Register interest

This board is on the bench. Leave your email and you'll be first in when it ships, and your interest helps decide what we build next.

What you'll build

Cut the cord. Design a rechargeable single-cell Li-ion power module with proper charging, load-sharing (so the board runs while it charges), and clean, low-noise rails using an LDO after a switching regulator. It's built as a reusable building block: every portable board later in the curriculum reuses this exact power design.

It sits on the POWER track: power delivery, including batteries, charging, protection, and the clean rails everything else depends on.

The build pipeline

No steps skipped, no black boxes. Each stage is gated on real proof of work: a clean ERC, valid gerbers, a passing bring-up. You finish having actually done the engineering, not just watched it.

  1. 01REQUIREMENTS
  2. 02BOM SOURCING
  3. 03SCHEMATIC
  4. 04LAYOUT
  5. 05DRC + GERBER
  6. 06ORDERING
  7. 07ASSEMBLY
  8. 08BRING-UP
  9. 09REVISION

Builds on

Part of these builds

★ The 8-Channel EEGCommand the SwarmMotion & ActuationPower Systems

Questions

When does this course open?
It's in active production. Join the waitlist and we'll email you the moment it goes live, and the demand signal helps us decide what to build next.
Is it beginner-friendly?
This is an intermediate L2 subsystem that builds on the foundations. Every stage is explained from first principles, so you can follow along as long as you're comfortable reading a schematic.
What will I need to build it?
Reading the course is free with a free account. Building the board for real also needs its bill of materials (listed in the course) and a small PCB order from a fab house. The course walks you through both.
What will I actually learn?
You'll learn power delivery, including batteries, charging, protection, and the clean rails everything else depends on, plus the full board workflow: schematic capture, layout, DRC, gerber export, ordering, assembly, and bring-up.

Part of the path from your first board to a brain-computer interface. See the full skill tree →