Partlist Wednesday: Ferrite beads

Every Wednesday we highlight a component from the updated partlist. This week: Ferrite beads. We usually use ferrite beads as a power supply filter. You’ll find them on the USB supply in circuits with an FT232 USB->serial converter chip, like the Bus Pirate, and on the ethernet interface of the web platform. For general purpose […]

Partlist Wednesday: NPN transistors

Every Wednesday we highlight a component from the updated partlist. This week: NPN transistors Transistors do lots of analog tricks, but we only use them to switch high powered stuff with a weak microcontroller pin. Usually an LED. See the IR Toy, #twatch, PICqueno, or USB POV Toy for the sad truth. We’ve standardized on the BC818 […]

Partlist Wednesday: Buttons and switches

Every Wednesday we highlight a component from the updated partlist. This week: buttons and switches. Let’s talk buttons. The 6mm button is the classic button. It comes in surface mount and through hole versions. The 6mm surface mount button, DTSM-6 seems to be one package name, has nice beginner-friendly pads that are easy to solder. […]

Partlist Wednesday: Voltage regulators

Every Wednesday we highlight a component from the updated partlist. This week: regulators. This week’s part: voltage regulators. We try to use the cheap 150mA voltage regulators in SOT-23 package whenever possible. These are cheap (from 25 cents in 1s) and super resilient to shorts, over temperature, and over load. 150mA is enough for the […]

Week in (p)review: July 15, 2011

Facebook free PCB Friday is on the way. Don’t forget to share your current project in the comments or the forum. Here’s a summary of major developments over the last week: USB Infrared Toy v2 and Web Platform v1.1 are back in stock at Seeed Studio Bus Pirate introduction tutorial is now available in Spanish […]

Week in (p)review: July 08, 2011

Facebook free PCB Friday is on the way. Don’t forget to share your current project in the comments or the forum. Here’s a summary of major developments over the last week: Thermal Tweeter Fail Whale Bus Pirate Zeno zit zapper hack update Bus Pirate and CPLD breakout free PCB build Check out Frank’s RC Quadrotor […]

Partlist Wednesday: Ceramic capacitors

Every Wednesday we highlight a component from the updated partlist. This week: surface mount ceramic capacitors. Ceramic capacitors are cheaper than aluminum and tantalum SMD caps, but come in smaller values. Typical values are in the pF to 1uF range, but we’ve noticed some 2uF+ ceramic caps at Mouser recently. Most have a maximum rating […]

A simple part: Pinheader connectors

From the Dangerous Prototypes partlist: pinheader connectors. 0.1″ (2.54mm) header is the standard width of bread boards Straight and right angle versions They are used on every project we’ve made so far. Their standard pitch spacing makes them easy to use with breadboards, jumpers, and wires with female connectors on them. We use them on […]