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Old 20th Jul 2021, 9:56 pm   #19
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,155
Default Re: MK14 Programming Interface

Yes, it does use 4 pin optocouplers, the type I used were PC817 (Or LTV-817/EL817...) because they were cheap on eBay
I might try wiring one of my boards to a Pi Pico because thats 3.3v as well and runs Micropython...
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