New featured project by Tom

content/featured-projects/binary-clock.md

@@ -18,66 +18,57 @@ Note: there are two PCF8575 IC used in this design.  This IC is used as it can p
 directly control the LED.   Alternative IC like the MCP23017 with less current capability would require a NPN
 transistor in the circuit.
 
-# Wiring
+## Wiring
 
 The following documents the connections for a single LED
 
-![Single LED wiring](/assets/featured-projects/binaryclock/led_connections.png)
+### LEDs
 
-## LED Anode/Cathode
+This project uses 20 LEDs in three colors.
 
-![Diode](/assets/featured-projects/binaryclock/diode.png)
-
-## LED assignment
-Chart of 20 LED showing color assignment.
-![LED colors](/assets/featured-projects/binaryclock/led_colors.png)
+{{< gallery >}}
+{{< figure link="/assets/featured-projects/binaryclock/led_connections.png" caption="Single LED wiring" caption-position="center" caption-effect="fade" >}}
+{{< figure link="/assets/featured-projects/binaryclock/diode.png" caption="LED Anode and Cathode" caption-position="center" caption-effect="fade" >}}
+{{< figure link="/assets/featured-projects/binaryclock/led_colors.png" caption="LED colors" caption-position="center" caption-effect="fade" >}}
+{{< /gallery >}}
 
-## Overall LED connections
 Higher level example of the twenty LED connections. This shows half of the LEDs. the same connection pattern
 repeats.
 
-![LED connections](/assets/featured-projects/binaryclock/led_connections_within_BreadBoard.png)
-
-![LED connections across entire BreadBoard](/assets/featured-projects/binaryclock/led_connections_across_breadboard.png)
-
+{{< gallery >}}
+{{< figure link="/assets/featured-projects/binaryclock/led_connections_within_breadboard.png" caption="LED connections" caption-position="center" caption-effect="fade" >}}
+{{< figure link="/assets/featured-projects/binaryclock/led_connections_across_breadboard.png" caption="LED connections across entire BreadBoard" caption-position="center" caption-effect="fade" >}}
+{{< /gallery >}}
 
-# Parts
+### AITIAO PCF8575 16 IO Expander
 
-## AITIAO  PCF8575  16 IO Expander
+Since there are 20 LEDs, two ICs are required. In my case these parts I purchased do not match their documentation.  My chip has solder bridges for all three address bits, A0 A1 A2.  Also, their description of a solder bridge across VCC-VDD appears to be backwards.  I think as  cautionary tale, I soldered the ICs down and lost access to their VCC-VDD bridge and couldn’t experiment.   
 
-Since there are 20 LEDs, two ICs are required. In my case these parts I purchased do not match their documentation.  My chip has solder bridges for all three address bits, A0 A1 A2.  Also their description of a solder bridge across VCC-VDD appears to be backwards.  I think as  cautionary tale, I soldered the ICs down and lost access to their VCC-VDD bridge and couldn’t experiment.   
 This companies chip functions correctly with the Chip VCC and LED anode voltage equal.
 
-## LEDs
-
-Cheapos.
-
-## Prototype board
+### Prototype board
 
 Half Size BreadBoard.  You can see in the chart ‘Overall LED Connections’ I cut paths on the planar so the LEDs
 could be placed close to each other.  You can buy larger BreadBoards from ElectroCookie, called snappable.
-On these boards each row, ie: A B C …  has three solder lands and each letters trace are not connected to the
+On these boards each row, ie: A B C ...  has three solder lands and each letters trace are not connected to the
 next letter, so no trace cutting and there is more area for components and soldering.
 
-![Alternate BreadBoard](/assets/featured-projects/binaryclock/alternate_breadboard.jpg)
-
-# PCF8575  Connection Assignment
-
-![PCF8575 pin assignment](/assets/featured-projects/binaryclock/pcf8575_pin_assignment.png)
+{{< gallery >}}
+{{< figure link="/assets/featured-projects/binaryclock/alternate_breadboard.jpg" caption="Alternate BreadBoard" caption-position="center" caption-effect="fade" >}}
+{{< figure link="/assets/featured-projects/binaryclock/pcf8575_pin_assignment.png" caption="PCF8575 pin assignment" caption-position="center" caption-effect="fade" >}}
+{{< /gallery >}}
 
-# Pi Connections
+## Raspberry Pi Connections
 
-The PCF8575 ICs and the Diode anodes connect to the Pi 3.3v
-The PCF8575 ICs connect to the Pi Ground.
-The PCF8575 ICs connect to the Pi SDA and SCL (I2C).
+* PCF8575 ICs and the Diode anodes connect to the Pi 3.3v
+* PCF8575 ICs connect to the Pi Ground.
+* PCF8575 ICs connect to the Pi SDA and SCL (I2C).
 
-# Java Implementation
+## Java Implementation
 
 The Java project uses Pi4J V2.6.0 and you can find the sources in this [GitHub repository](https://github.com/taartspi/pi4j-binary-clock)
 
-Developed using pi4j 2.6.0-SNAPSHOT.
-
-# Completed project
+## Completed project
 
 {{< gallery >}}
 {{< figure link="/assets/featured-projects/binaryclock/pcf8575_breadboard.jpg" caption="PCF8575 BreadBoard" caption-position="center" caption-effect="fade" >}}
@@ -86,11 +77,13 @@ Developed using pi4j 2.6.0-SNAPSHOT.
 {{< figure link="/assets/featured-projects/binaryclock/interconnect.jpg" caption="Interconnect" caption-position="center" caption-effect="fade" >}}
 {{< figure link="/assets/featured-projects/binaryclock/led_breadboard_operational.jpg" caption="Operational" caption-position="center" caption-effect="fade" >}}
 {{< /gallery >}}
-{{< load-photoswipe >}}
 
-# Alternate IC
+## Alternate IC
 
 You could use a MCP23008 or MCP23017 as the IC. There are a few more steps to configure the IC, and its limited current capability requires a NPN transistor to switch the LED current.
 
-![NPN Transistor for MCP230XX](/assets/featured-projects/binaryclock/npn_transistor.png)
 
+{{< gallery >}}
+{{< figure link="/assets/featured-projects/binaryclock/npn_transistor.png" caption="NPN Transistor for MCP230XX" caption-position="center" caption-effect="fade" >}}
+{{< /gallery >}}
+{{< load-photoswipe >}}