Content for PCB

Echo & Reverb Box

“This build is based around a great little reverb module you can get on eBay for under $5. Ive used it now in a couple of projects (listed below) but this time I wanted to have a stand along reverb …

PocketAdmin – Keystroke Injection Device

“This is a keystroke injection device (also called badusb). It is similar to a well-known USB rubber ducky made by hak5, but has much extended functionality, lower price and is also completely open source. It looks and feels like an …

555 Timer and LED Repair for Inflatable Display

“My wife bought this inflatable lawn decoration last year, but unfortunately last year’s severe winter was too much for it. The snowmen worked all Christmas season but when it was time to put the decorations away, we had snowstorm …

Battery Capacity Tester Using Arduino - Lithium-NiMH-NiCd

“Features: Identify a fake Lithium-Ion/Lithium-Polymer/NiCd/NiMH battery Adjustable constant current load (can also be modified by the user) Capable of measuring the capacity of almost any kind of battery (below 5V) Easy to solder, build, and use, even …

Creating Artemis

“Learn how we created our own SMD module using PCB tips and tricks for blind and buried vias. For years SparkFun was wary of getting a product fully FCC certified. The process always seemed unknown and prohibitively expensive. We’ve …

DIY Analog Resource Monitor for your PC

“In the video above, you can see first a power up sequence where all four dials go from zero to 100% and back to zero after which they start showing real time CPU, Memory, Network and GPU usage. After that …

Hold the drop

“Hold-the-drop project shows the robustness and reliability of the connection between modules of Hexabitz.”

Project  OtterPill

OtterPill

“STM32F072 devboard featuring USB 2.0 full-speed, DFU Bootloader, USB-PD Phy, Arduino nano alike pinout and size. HW v1.1 is finished and tested, v1.2 will be finished and tested soon. New features/changelog: BOM cost reduction by …

PCB Business Card

“I had a very simple business card for years, but I was just plain tired of it. It was too bland and looked like all of the other business cards that I had amassed over the years. I was catching …

How to Build 8x8 BIG LED Matrix (MAX7219 LED 10mm)

“Have you worked with ready-made 8x8 LED matrix as displays? They come in various sizes and are quite interesting to work with. A large readily available size is around 60mm x 60mm. However, if you are looking for a much …