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Lenovo T530 Laptop WiFi upgrade
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nkpad laptop (of course) * New wireless card, I used the [[http://www.intel.com/content/www/us/en/wire... from eBay or Aliexpress) * A second computer (I used another Linux computer. A Windows computer can wo... ng up to the trim, keyboard, and display. - I used the existing thermal compound for testing, then I... UO_15.6_LCM_overview_15248.html|B156XTN02.1]]. I used this as a guide: http://replacethinkpadscreen.blo
Sump pump Monitor @projects:electronics
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- Measures up to 5 metres (200 inches) of water (Used for the cistern) * MPX5010 - Measures up to 1 metre (40 inches) of water (Used for the sump) * 2 Optically isolated inputs, on... red when the sump pump turns on, the other is not used * 1-wire network for temperature sensors * Th
C.H.I.P Computer
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VHOLD: 1 (Whether VBUS is above 4.4V before being used) Shutdown voltage: 2.9V VBUS current limit: 900... VHOLD: 1 (Whether VBUS is above 4.4V before being used) Shutdown voltage: 2.9V VBUS current limit: 100
IO Board @projects:electronics
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round |B10^#|A10|I/O CH RDY|n/c| |B2 on U23 - not used|-SMEMW |B11^#|A11|AEN |Address enable; active high when DMA controls bus| |B1 on U23 - not used|-SMEMR |B12^#|A12|SA19 |n/c| |A3 on U23|-IOW |B13
X10 Interfacing @projects:electronics
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ems to die after a few years (on three units I've used) so I figured out the pinout. 4N35's are used internally for opto-isolation, The power is from a transf
7-segment display module @projects:electronics
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made this board using Eagle for layout and then I used [[http://www.batchpcb.com|BatchPCB]] to manufactu