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Free PCB Sunday: Pick your PCB

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion...
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App note: EMC guidelines for microcontroller-based applications

Application note(PDF) specific on microcontroller EMC from ST Microelectronics. Electromagnetic compatibility (EMC) must be taken into account at the very beginning of a project as the cost of correcting an EMC problem encountered at the start of...
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App note: EMC general information

Application note(PDF) on EMC from ST Microelectronics. Because many electronic circuits are in proximity to each other, it is essential that their design is not affected by external noise sources and that the circuit itself is not a noise source...
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Arduino compatible LightBlue Bean adds Node-RED support

Arduino-assisted automatic 3D printed tea maker

If the earlier Arduino projects weren’t your cup of tea, try out this Automatic 3D Printed Tea Brewer. 24 Hour Engineer Brian McEvoy designed this project which uses the Arduino to control a servo which dunks the tea bag for a predetermined...
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Arduino Day open source project roundup

It’s Arduino Day and Alex Sanchez at opensource.com, has posted a roundup of Arduino activities and projects for all skill levels from beginner to advanced. You can open your door, make a pot of coffee and catch Pokemon’s all with...
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App note: Operational amplifier applications using 8-Bit PIC microcontrollers

Operational amplifier applications using 8-Bit PIC microcontrollers (PDF!) from Microchip: This document aims at uncovering some of the more important parameters of the op amp and the significance in certain applications. Specific examples and...
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DirtyPCBs two layer ENIG PCB closeups

DirtyPCBs two layer ENIG PCB review by manis404: The standard service is $14 for 10 boards. You can have the pads ENIG finished for $15 more, which brings the total cost to $29 for 10 boards, shipped. It is still an excellent deal. The quality is...
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Free PCB coupon via Facebook to 2 random commenters

Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters.  The coupon code usually go to Facebook ‘Other’ Messages Folder .  More...
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Raspberry Pi Videolooper

Steven Hickson writes: Introducing videolooper 3.0! This image is compatible with the A,B,B+, and B 2 versions. I have a brand new version of the Raspberry Pi Videolooper that is compatible with the new B V2 and has a bunch of new features that...
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