an ugly electronic circuit prototype on three PCBs mounted on an acrylic base plate with an optical rail made from 2020 extrusion

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1. teddy (tedyapo@fosstodon.org)'s status on Sunday, 12-Jan-2025 06:04:23 JST teddy

   i lost something like this a couple years ago, so had to build a new one for an upcoming project. it's an LED/LD tester that can record forward voltage and relative optical flux from devices under currents from 1uA to 1A. 16-bit differential ADCs kelvin-connected thru a relay switching network. 0.1% FS accuracy in 1mA, 10mA, 100mA, and 1A ranges