Embedded & MCU
Firmware and hardware for ESP32, STM32, RP2040 and friends — from bare-metal to RTOS.
Coming soon
Electronics, stacked piece by piece.
A new home for intermediate and advanced amateur electronics — embedded systems, PCB design, analog & power, RF, measurement and repair. Built for people who want to understand how it really works.
// what is coming
Six tracks, one stack
No blinking-LED tutorials. Real designs, real trade-offs, real measurements.
PCB Design
Schematic, layout, EMC-aware routing and fabrication — designs you can actually build.
Analog & Power
Op-amps, filters, SMPS, battery and thermal design explained from first principles.
RF & Wireless
Antennas, matching, LoRa, BLE and the black magic of controlled impedance.
Measurement & Lab
Scopes, logic analyzers and calibration — how to prove that your circuit really works.
Repair & Reverse
Teardowns, reverse engineering and bringing broken hardware back to life.
// open hardware, examined
Reference design
Seeed Studio XIAO ESP32-C3
Open hardware from Shenzhen: a 21 × 17.8 mm ESP32-C3 board with Wi-Fi, BLE 5 and a Li-ion charger. We redrew its schematic and explain every block.
- ESP32-C3FN4 · RISC-V @ 160 MHz
- Wi-Fi b/g/n + Bluetooth LE 5.0
- USB-C, Li-ion charging, 44 µA sleep
// status
Build progress
We are soldering this thing together right now.
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Concept & scopeTrack structure and level defined.
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Design systemLook, feel and typography locked in.
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First articlesIn the lab — the first reference design is live.
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Public launchSign up below to hear it first.
Be there when we power up
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Or write to hello@elecrostack.com