12" PCB Ruler Is a Handy Reference Tool for Raspberry Pi and Arduino Users
Designed with as much information on as possible, Ian Dunn's latest creation is a bigger brother to his earlier 6" ruler.
Maker Ian Dunn has launched a crowdfunding campaign for a PCB ruler designed for Raspberry Pi and Arduino fans, featuring a quick reference guide for their respective pin-outs as well as common electronic components.
"The moment I laid eyes on a PCB ruler I had to have one. But none that I could find quite had all the things that I wanted, so I made my own," Dunn explains. "This led to the creation of the 6" Raspberry Pi and Electronics Printed Circuit Board Ruler."
"The trouble is, there isn’t very much real estate on a 6″ ruler. So I made another ruler. I’ve once again crammed every piece of information about electronics and micro controllers that I could fit onto this new ruler. The result is a sleek ruler that’s about as unusual as they come."
The 12" ruler is manufactured from FR-4 with gold-plated copper. The front side of the ruler includes pin-out diagrams for the Raspberry Pi family of single-board computers, the Arduino Micro and Arduino Nano, the Adafruit Metro Mini, and the Teensy 4.0, as well as measurement graduations in centimeters and inches.
The back of the ruler switches to more generic electronic information: PCB trace widths and the respective amperage ratings, wire size, resistor color codes and common footprints, LED schematics, pin-out, and common footprints, tactile push-button switch footprint, capacity footprints with unit conversion table, transistor schematic symbols, pin-outs, and footprints, 78xx voltage regulator pin-outs, diode schematic, pin-out, and common footprints, Ohm's Law, font heights in millimeters and Mils, and USB pin-outs.
Dunn is looking to fund the production of at least 1,000 boards, in black or green finishes, at a price of $20 per board. More information is available on the project's Kickstarter campaign page.