midori.day

A FIELD GUIDE TO CIRCUITS AND CRAFT

Begin Reading

Tutorials

Beginner

Growing a PCB Layout from Schematic Seeds

Start with a hand-drawn schematic, coax it into a routed board. The organic method that actually teaches.

Intermediate

Fermentation Logic: State Machines Without Frameworks

Finite state machines explained through the phases of kombucha. No RTOS required. Patience is the scheduler.

Beginner

Pressed Sensor Arrays: Touch Interfaces for the Hesitant Maker

Capacitive sensing with the same deliberate touch as botanical pressing. Low component count, high meditative value.

Advanced

Mycorrhizal Networks and Mesh Topologies

ESP-NOW mesh protocols modeled on fungal nutrient-sharing networks. Emergent behavior without a coordinator node.

Intermediate

Seed Vault Protocol: Non-Volatile Memory Patterns

EEPROM wear-leveling strategies drawn from seed bank preservation logic. Store data like you're curating for a century.

Advanced

The Oscilloscope as Field Journal

Reading waveforms the way a naturalist reads leaf morphology. Pattern recognition over memorized formulas.

Component Reference

Component Package Value Note
R1040210kΩpull-up, I²C SDA
R2040210kΩpull-up, I²C SCL
C10603100nFbypass, VCC
C2060310µFbulk, main rail
U1SOT-23AMS11173.3V LDO reg
U2QFN-32ESP32-S3SoC, WiFi/BT
D1SOD-123BAT54Schottky, rev prot
L1121010µHboost inductor
X1322540MHzcrystal, ESP32
J1USB-Cpower + data
// footprint library: KiCad 7.0 // all values ±5% unless noted
GPIO / SPI
UART / I²C
XTAL IN
GND (thermal)

The Archive

Apr 2026

Propagation Tables for Interrupt Timing

On the uncanny similarity between plant propagation charts and ISR latency tables.

Mar 2026

Linen, Flux, and the Texture of Hands-On Work

Material culture note: what fabrics and solder have in common.

Mar 2026

A Seasonal Calendar for PCB Tapeout Deadlines

Organize your fabrication schedule around seasons, not sprints.

Feb 2026

Root Systems and Bus Topologies

CAN bus, I²C, SPI — each with a different nutrient-distribution logic.

Feb 2026

The Patience of Etching: KiCad Copper Pour

Copper pour settings as an analogue for the acid bath. Gradual, irreversible, beautiful.

Jan 2026

Component Taxonomy: A Naturalist's Classification

Resistors, capacitors, inductors, diodes — not by datasheet but by behavior archetype.

Jan 2026

Dormancy and Sleep Modes: Power Management as Ecology

Deep sleep, light sleep, modem sleep — hibernation strategies for electronic creatures.

Dec 2025

Wire Gauges and the Grain of Wood

Why the right wire feels right the same way the right wood grain feels right.

Dec 2025

Handwritten Schematics: The Field Journal Method

A case for drafting your first schematic with a 0.3mm pen and graph paper.

Nov 2025

Signal Integrity and the Still Air of a Cold Morning

EMC basics explained through the metaphor of noise in natural sound environments.

Nov 2025

Datasheets as Species Monographs

How to read a datasheet the way a biologist reads a monograph: systematically and with curiosity.

Oct 2025

Germination and Initialization: The Boot Sequence

What a microcontroller's first microseconds of life have to teach about beginnings.