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DIY Ardunio RPM Display for SX2

DIY Arduino Display

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Ian Usmar	27/12/2020 20:22:53
71 forum posts 10 photos	HELP ! I am looking for an article on the above by a lady called Jenny back in Dec 2018 I found it yesterday but seen to have completely lost it today so after spending 20 mins searching I resorted to all your fonts of knowledge. Regards Ian
JasonB	27/12/2020 20:25:43
25215 forum posts 3105 photos 1 articles	On HMEM
Ian Usmar	27/12/2020 20:28:25
71 forum posts 10 photos	Thanks for this I have also found under the Axminster website DOH
Neil Wyatt	28/12/2020 11:10:29
19226 forum posts 749 photos 86 articles	I made ones for my SX2 and my Mini lathe (actually AVR based - the chip inside an Arduino). What may be useful to others is that I used two different ways of timing RPM. At high speeds it counts pulses for a second and multiplies by 60. At lower speeds it times the delay between pulses and calculates the rpm from this keeping accuracy at what would be very low pulse counts. Neil

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