Archive for the ‘parts’ Category

BOMtools: Python scripts build Kicad part database

Friday, June 12th, 2015

Steve Rodgers has been busy coding. He's developed a set of Python scripts (BOMtools) which allow you to extract part numbers from a Kicad schematic and match them to a part number database. There are two scripts. One which does the part merge operation and is called from Kicad and...

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Posted in partlist, parts, scripts | 1 Comment »

Having fun with big ultra capacitors

Tuesday, April 16th, 2013

[embed][/embed] Here's a video by Afrotechmods: Fun with ultracapacitors! So I recently got hold of some 2600F (no that is not a typo) ultracapacitors with an insanely low ESR of 0.7 milliohms, meaning they can discharge hundreds of amps even at low voltages. This video shows you some of the...

Posted in components, parts | 12 Comments »

Will the SMD resistors marking become a history?

Friday, April 5th, 2013

Will the SMD resistors marking become a history? Company YAGEO announced its intention to remove marking of RC/AC 0603,0805,1206 SMD chip resistors from July, 1-st, 2013. Everything implies, that the situation with marking of chip resistors (0603/0805/1206) will soon be similar to chip capacitors – i.e. no marking on the...

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Posted in parts | 41 Comments »

DIY hand-wound resistors

Wednesday, November 7th, 2012

Need higher power resistors, or heaters, as we like to call them? Build them yourself. Matseng hand-wound 6 meters of 38AWG wire to build 12 ohm resistors. He used a pencil and some kapton tape as the base for the resistor. I needed two power (just ~1 watt) 12 ohm...

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Posted in DIY, parts | 10 Comments »

LED packaging overkill

Friday, October 19th, 2012

Order a single surface mount LED, you expect a small "anti-static" bag with a tiny LED inside. Wrong. Here's what Systemstech got when he ordered one. A large "anti-static" bag, with a dehumidifier bag, and a humidity sticker inside. The actual LED is the tiny black dot on the right....

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Posted in parts | 24 Comments »

How to build a surface mount resistor and capacitor collection

Tuesday, October 9th, 2012

This tutorial shows how to easily, and relatively cheaply, build a nicely organized SMD resistor, and capacitor collection. George likes using connectable tiny storage boxes, and filling them with resistor/capacitor kits from eBay. This is complemented by printing out labels for your storage boxes using the label design files for...

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Posted in parts, tutorials | 9 Comments »

Another nixie tube hoard

Thursday, October 4th, 2012

In response to our Workshop Update in which we displayed our Nixie Tube collection Buzzdavidson writes: Hoarding...Yup.  Nice to know that I'm not alone in my insanity.  Here's "My collection".  To be fair, there are some VFDs and Dekatrons in there as well.  I've salvaged most of my nixies (side...

Posted in components, parts | 1 Comment »

Microchip’s PIC18F2/4550 replacements are available for sampling

Friday, September 21st, 2012

In July we mentioned that Microchip was getting ready to release replacements for the famous PIC18F2550 and PIC18F4550  microcontrollers, and now they are available for sampling. The PIC18F2/45K50 family is pin to pin comparable with the older series, and are also capable of running at 5V. The price has gone...

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Posted in parts | No Comments »

7 segment display controlled by simple SPI interface

Monday, September 17th, 2012

Touch let us know about these 4 digit SPI controlled 7 segment displays that cost a little less then $1 a piece. They include decimal separators and a colon separator so it's easy to display time. I picked up some cheap 4 digit 7 segment displays over on eBay for...

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Posted in parts | 6 Comments »

Nixie hoard or collection, you decide

Wednesday, August 29th, 2012

Like many, we've amassed a bunch of nixie tubes but never use them for much. Matseng shared his hoard collection: Top left to right: 10 pcs alphanumeric ZM1350, 5 boxes @ 20 each of the tiny IN17, 8 pcs of the huge B7971. Left middle: A box with about 100...

Posted in parts | 6 Comments »

Sourcing cheap parts on TaoBao, China’s eBay

Thursday, August 16th, 2012

Matseng wrote about the Chinese eBay equivalent TaoBao as a great source for cheap electronics components. While the pricing is cheap, the downside is that most sellers only sell locally, so using an agent is a must. Read his full report below. (more…)

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Posted in parts | 15 Comments »

Octopart provides historical component pricing

Friday, July 6th, 2012

Greg Shikhman from Octopart writes, "Hey DP, we just launched a new feature on Octopart that we think is really cool: historical prices on chips. We're trying to bring transparency to the chip market and we've already discovered some cool stuff in our data. Check it out! The way it...

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Posted in components, parts, site | No Comments »

Connector sampler pack

Monday, June 18th, 2012

We have an ongoing thread in the forum where you can share your latest electronics purchases. Here's some stuff Zeta got recently: You know how hard it is to choose the right conector when all you have is an online catalog and well TE Conectivity (via Digikey) sent me a...

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Posted in parts | No Comments »

Our big box of traveling parts is in the wild

Wednesday, March 28th, 2012

We are constantly developing prototypes, so we end up with a large pile of unused components. When we moved to a new location we realized some components sat untouched since the previous move. A while ago we read about the The Great Internet Migratory Box Of Electronics Junk and decided...

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Posted in components, new parts, parts | 7 Comments »

8051-compatible MCU samples from Microchip

Thursday, February 23rd, 2012

For those of you who like the 8051 chip, we notice that Microchip has 8051 compatible MCUs available in 40-pin PDIP, part number SST89E516RD-40-C-PIE, available as samples. According to the datasheet: The SST89E516RDx and SST89V516RDx are members of the FlashFlex family of 8-bit microcontroller products designed and manufactured with SST’s...

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Posted in components, parts | 19 Comments »

Octopart on standardizing partlist data

Friday, February 3rd, 2012

An engineer from Octopart asks about standardizing the format for partlists for easier automated processing and quotes. They are designing a new part information API and would like help with suggestions and ideas: If we can all come up with a good general purpose structured data format, it could be...

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Posted in code, parts | 2 Comments »

Small 10 mW thermogenerators available retail

Thursday, December 29th, 2011

This device is a tiny SMD thermogenerator that harvests heat energy to generate up to 10 milliwatts of power. Dev boards are available at Mouser for a mere $700 retail. In case of Micropelt devices, one side is placed near the heat source and the other side has a fixed...

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Posted in parts | 10 Comments »

Ceramic, tantalum, and electrolytic capacitor comparison

Tuesday, December 20th, 2011

Arhi made use of his precision LCR meter to measure capacitance and ESR values of ceramic, tantalum, and electrolytic capacitors. He made his measurements at various frequencies to help him graph the changes to the values over a wide frequency range. From the graph it can be extrapolated that the...

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Posted in parts | 3 Comments »

Bus Pirate PIC programmer through-hole version

Friday, December 9th, 2011

MickM decided to rework our PIC programing adapter to a through-hole version. He made two versions of the board. One for both Bus Pirate V2go and V3, and one that supports only V3. I got very confused reading the schematic, and had to redraw it. One thing led to another...

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Posted in dev boards, parts | No Comments »

PIC32s in DIP packages are available at microchipDIRECT

Friday, December 9th, 2011

PIC32 microcontrollers in DIP packages are in stock at microchipDirect. The prices range from $2.51 in the singles to $1.82 in high volumes. This compares well to 8, and 16bit PICs which also range around $2 in the same package. Via the forum. Thanks Shaos.

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Posted in parts | No Comments »

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Recent Comments

  • gant: They still have a couple of the more expensive (but still considerably cheap) 5S-I-S01 in stock...
  • readybrek: Anyone got a any recommendations for a budget-priced hot air station?
  • William: lol I'm happy to waste 3c for each program/debug cycle... but probably not the time spent soldering a new device down to a proto board!...
  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!