Board/MSP/MSP1023-DAT.md
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+# MSP1023 dat
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amp for AC signal, but should also for DC signal
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-amplification ratio = first 10x X second trimpot tune 10X
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+amplification ratio = first 10x X second trimpot tune 10X = 100X
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+https://www.electrodragon.com/product/lm358-operational-amplifier-signal-amplifier-module-arduino-supported/
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+## Legacy wiki page
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+- https://w.electrodragon.com/w/LM358
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+## other ref
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+- [[MSP1023]]
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