Cordwood Puzzle One

by Boldport

Experience the thrill of 1960s PCB assembly with the Cordwood Puzzle One soldering kit from Boldport!

In the 1950s and 1960s inventive engineers saved space by using the 'cordwood' assembly, where components were sandwiched in between two circuit boards. This construction became less useful with reduced component sizes, PCB manufacturing advancements, more compact integration, and surface mount technology, but it's still a lovely piece of history. Combining both old and new, the Cordwood Puzzle is a tribute to this construction and to the engineers who came up with it.

The puzzle is to correctly assemble the circuit with the components at hand. Once completed, all of the LEDs light up when power is applied. When connected to a controller board, each LED can be individually controlled.

Unfortunately(!), all the comprehensive assembly guides were mysteriously missing from the kits.

Note: requires through-hole soldering!

Click here for the kit contents and assembly guide

Cordwood Puzzle One was project #3 of the Boldport Club.

3 customer reviews

3 years ago
Very good piece of kit and perfect for what I needed. The only downside was the length of time it logs for. It seems to cut out after a few hours. Reconnecting it resume logging. This may be because I'm running it at the limit of its BAUD rate of 115200. I'm also using a 64GB SD card partitioned to 32 GB and formated with FAT32. This isn't exactly as specified in the instructions.
by Anonymous about SparkFun OpenLog via REVIEWS.io
3 years ago
I have used these for several projects and keep coming back. Brilliant product, super fast delivery, couldn't complain if I wanted too. Don't buy ebay knock offs you'll regret it trust me.
by Jay about SparkFun OpenLog via REVIEWS.io
5 years ago
The OpenLog is simple to use and does what it states. It opens up quite interesting possibilities when paired with the micro:bit. It is a bit of a power hog tough.
by Filipe about SparkFun OpenLog via REVIEWS.io

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