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notes [2010/08/27 20:00] – jeffnotes [2014/11/13 10:50] (current) – external edit 127.0.0.1
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 +====== PCF8574 - 8-Bit I/O Expander for I2C-Bus ======
 +[[http://www.ti.com/product/pcf8574?DCMP=A_SLL_SLL_SLL_Content&CMP=KNC-GoogleTI&247SEM#samples]]
  
-===== Timestamps =====+====== Retroreflective yarn ====== 
 +  * [[http://scienceinspireddesign.wordpress.com/2010/10/25/3m-scotchlite-retro-reflective-yarn/]] 
 +  * [[http://www.texturatrading.com/yarn.html#Retro]] 
 + 
 +====== Timestamps ======
 Convert Excel timestamp to unix time: ''=(EXCEL-25569)*86400'' Convert Excel timestamp to unix time: ''=(EXCEL-25569)*86400''
  
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 } ?></code> } ?></code>
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