http://www.perkinelmer.co.uk/CMSResources/Images/44-4345CAT_SensorsAndEmittersInfraredSensing.pdf Teardown Tuesday What’s inside a NESS Quantum Passive Infrared (PIR) pyroelectric motion sensor. How do they work? And what’s all this Fresnel lens stuff anyhow? For Meters and Sensors check out Measurement Systems. Podcast: Download

Building the Makerbot Thing-O-Matic Gen 4 Interface Controller, fixing problems with the stepper motor drive current, and a successful first print. Well, almost… Podcast: Download

http://www.onsemi.com/pub/Collateral/MC34262-D.PDF https://www.youtube.com/watch?v=bX8IIjf15qY This was supposed to be a small side piece in the Manson PSU Teardown, but it was almost 10 minutes, so I decided to separate it out to keep the teardown as short as possible. You should watch the PSU teardown to get the context of this where …

Service Manual: http://eevblog.com/files/SPS9400_ServiceManual.pdf What’s inside the Manson SPS9400 40A 3V to 15V Switchmode Power Supply? Also known as the Jaycar Powertech MP3090 and BK Precision 1692 Podcast: Download

1 photo every minute, rendered to 5 frames per second. A short time-lapse build of the new eevblog lab. Forgot to upload this. Better late than never. Podcast: Download