This is my first “real” design in Eagle. Instead of just doing a random project I decided to come up with a good board that will become the second product on the site. The first board is a (super secret) control board that will connect to the Raspberry Pi and Arduino. The Kickstarter for that board will be introduced in February 15th of 2017. This 555 SMT kit will allow you to learn how to solder SMT parts to a board and have a flashing wearable LED badge after you complete it. I have send off for a few test boards however I will likely change the design some to make it easier to solder and or cheaper to make. Below is a picture of the board with the company logo and I’m pretty happy with the clean layout.

I got the board back and noticed a few issues, The manufacturer did not create the trace between pin 2 of the 555 and capacitor 1. Also the badge needed low voltage 555 timers to work properly. I’m also dropping one of the LED’s and just having two on the board. After looking over the prototype board I made a lot of changes to the board in Eagle.













I spent the time laying out the board above on Autodesk circuits. A interactive circuit for the board is below. You will need to click the switch next to the battery once you start the simulation.

Want to see more interactive circuits like this go here.

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