Practical automation
for serious growers.
Engineering-driven greenhouse, irrigation, sensor, and control systems for small-scale agricultural operations.
Core focus areas
Reliable, field-tested systems for small-scale growing operations.
Greenhouse Automation
Climate control, ventilation staging, shade systems, and environmental monitoring for protected growing.
Irrigation & Fertigation
Flow-based irrigation, nutrient injection, scheduling, and pressure management for precision watering.
Sensors & Telemetry
Temperature, humidity, soil moisture, EC, pH, flow, and pressure sensing with MQTT telemetry.
Raspberry Pi / Linux Control
Headless Linux gateways, systemd services, Python control loops, and remote management.
Embedded Systems
Teensy, ESP32, and Arduino-based edge nodes for real-time I/O, PWM, and relay control.
Field-Tested Builds
Complete build documentation with parts lists, wiring diagrams, and real-world performance data.
Building a Smart Fertigation System
A practical system design for controlled nutrient injection, flow measurement, pump control, and future automation.
Step-by-step design covering injector pump sizing, inline flow sensors, EC/pH monitoring, solenoid valve control, and integration with a Raspberry Pi gateway for scheduled fertigation runs.
Read the GuideCalculators & utilities
Practical tools for system design, sizing, and troubleshooting.
Fertilizer Injector Calculator
Size injector ratios and flow rates for your fertigation system.
Irrigation Runtime Calculator
Calculate zone runtimes based on flow rate, area, and application depth.
VPD Calculator
Vapor pressure deficit lookup for optimal transpiration management.
Pressure Loss Calculator
Estimate friction losses in pipe runs, fittings, and filter assemblies.
Field-tested component lists
Curated hardware and component recommendations based on real deployments.
Product stacks are field-tested component lists with cost/performance trade-offs and affiliate-supported recommendations. Each stack includes the specific parts used in our builds, why they were chosen over alternatives, and what to watch for in procurement.
Browse Product StacksField notes from the build.
Practical lessons from real greenhouse automation, irrigation testing, sensor failures, and system design.