Documented alternative USB layout.

[physical.git] / misc / 12V Lead-Acid battery changer and terminal / index.org

diff --git a/misc/12V Lead-Acid battery changer and terminal/index.org b/misc/12V Lead-Acid battery changer and terminal/index.org
index 36baa7f..d14cca2 100644 (file)
--- a/misc/12V Lead-Acid battery changer and terminal/index.org
+++ b/misc/12V Lead-Acid battery changer and terminal/index.org
@@ -32,31 +32,32 @@
 
 * Project description
 I needed dual voltage power supply for my lab that runs on mains
 
 * Project description
 I needed dual voltage power supply for my lab that runs on mains

-electricity (wall power) and slowly charges attached 12V Lead-Acid
-battery. Lead-acid battery in turn provides high current when needed
-as well as power in portable situations or when mains electricity is
-not available.
+electricity (wall power) and slowly charges (use-changing) attached
+12V Lead-Acid battery. Lead-acid battery in turn provides high current
+when needed as well as power in portable situations or when mains
+electricity is not available.

 
 [[file:make.png]]
 
 Power supply provides about 13 Volts and 5 Volts simultaneously.
 
 
 [[file:make.png]]
 
 Power supply provides about 13 Volts and 5 Volts simultaneously.
 

-!!!WARNING!!! I use USB-A connectors for power output, but IT IS NOT
-COMPATIBLE WITH USB DEVICES AND POSSIBLY WITH EXISTING USB CABLES.
+*!!!WARNING!!!* [[../alternative%20USB%20layout/][Alternative and incompatible USB wiring/layout]] is
+being used here.

 
 

-Normal USB devices and cables should not be plugged in! It would
-damage device/cable and likely power supply.
+*Normal USB devices and cables should not be plugged in! It would
+damage device/cable and likely power supply.*

 
 I found USB-A connectors to be easily available, cheap, reliable and
 functional, so I re-purposed connector for my own needs but I'm using
 totally incompatible electrical wiring.
 
 
 I found USB-A connectors to be easily available, cheap, reliable and
 functional, so I re-purposed connector for my own needs but I'm using
 totally incompatible electrical wiring.
 

-[[file:connector%20terminal/USB%20hack.png]]
+[[file:../alternative%20USB%20layout/schematic.png]]

 
 As seen, it has dual voltage output. Additionally one wire is
 
 As seen, it has dual voltage output. Additionally one wire is

-dedicated to data transmission and can be used with [[https://en.wikipedia.org/wiki/1-Wire][1-wire]]
-protocol. Power supply simply passively links all data wires together
-but does not participate in communication.
+dedicated to data transmission and can be used with [[https://en.wikipedia.org/wiki/1-Wire][1-Wire]] protocol
+
+1-Wire data router/hub is really simple. Power supply simply passively
+links all data wires together.

 
 Power supply uses 3D printed body with lots of holes, for fanless
 cooling.
 
 Power supply uses 3D printed body with lots of holes, for fanless
 cooling.