It is a tester for TTL integrated circuts (mainly for 74xx series).

It was originally developed by Ewgeny7 (initial thread on Russian forum: http://zx-pk.ru/threads/16638-tester-melkoj-logiki-na-mega8515.html)

It was published by atsidaev (https://github.com/atsidaev/8515_TTL_tester/)

It was forked by me 08 October 2018

• 7400(ЛА3)
• 7402(ЛЕ1)
• 7404(ЛН1)
• 7406(ЛН3)
• 7407(ЛП9)
• 7408(ЛИ1)
• 7410(ЛА4)
• 7411(ЛИ3)
• 7420(ЛА1,ЛА7)
• 7427(ЛЕ4)
• 7430(ЛА2)
• 7432(ЛЛ1)
• 7438(ЛА13)
• 7474(ТМ2)
• 7475(ТМ7)
• 7486(ЛП5)
• 7493(ИЕ5)
• 74125(ЛП8)
• 74138(ИД7)
• 74139(ИД14)
• 74155(ИД4)
• 74161(ИЕ10)
• 74166(ИР10)
• 74169(ИЕ17)
• 74174(ТМ9)
• 74175(ТМ8)
• 74193(ИЕ7)
• 74244(АП5)
• 74245(АП6)
• 74253(КП12)
• 74257(КП11)
• 74258(КП14)
• 74295(ИР16)
• 74298(КП13)
• 74367(ЛП11)
• 74368(ЛН8)
• 74373(ИР22)
• 74374(ИР23)
• 74393(ИЕ19)
• 74HC4520(561ИЕ10)
• Intel 8282(580ИР82)
• Intel 8286(580ВА86)

Original build was for CodeVision AVR

Now it is for Atmel AVR Studio