Selective Appeal Blog
Projects in Home Automation and the Internet of Things
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3D-Printed Fixtures for PCB/Stencil Alignment

3D-Printed Fixtures for PCB/Stencil Alignment

A 3D printed fixture is a better way to align a stencil with a PCB for solder paste deposition.

Garden133 Firmware

Garden133 Firmware

Design and operation of the C++ firmware that runs the Garden133 devices.

Garden133 Radio Communication

Garden133 Radio Communication

Radio link and protocol design for the Garden133 system.

Garden133 Hardware Design

Garden133 Hardware Design

Design of the Garden133 hardware: sensing, power, end enclosure

Introducing Garden133

Introducing Garden133

Controlling garden watering with solar power, LoRa, custom ESP32 boards, and Home Assistant integration.

Hand-Assembly of SMT Circuit Boards for the Hobbyist

Hand-Assembly of SMT Circuit Boards for the Hobbyist

Tricks for speeding hand-assembly of circuit boards with SMD components, including Gridfinity pick-bins

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Projects
Plant133
Dough133
Room133
Garage133
Garden133
PCB Assembly