You can buy these little "12V Digital Relay Cycle Delay Timer Timing Switch light motor reversing Control" chipsets out of China for under $10 on the 'bay. The green yellow white you see coming out of the first relay plugs into the JOBO board and does the same thing the mechanical fingers did so poorly. Runs on a 12V wall wart. The yellow is the 'common' on the JOBO. I set it up for 9 seconds, * reverse for 9 second * repeat. Easy peasy. Should have done it a long long time ago.
Hope maybe that helps someone.
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