Changes for page Front I/O

Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -216,13 +216,68 @@
216	216	* fan LED (red & green)
217	217	* temperature LED (red & green)
218	218	* compute LED (unknown)
	219	+* lock switch
219	219
220		-Each side is driven by each their PCA9554 shift register. The registers represent the following LEDs: (Note that Lock LED is only present for the LEFT side)
	221	+Each sides bank of LEDs are driven by each their PCA9554 shift register. The registers represent the following LEDs: (Note that Lock LED is only present for the LEFT side)
221	221
	223	+(% border="1" %)
222	222	|=(% scope="row" %)Register|1|2|3|4|5|6|7
223	223	|=Device|Power LED Green|Power LED Red|Fan LED Green|Fan LED Red|Temperature LED Green|Temperature LED Red|Lock LED
224	224
225	225	To control each LED we shift either a 0 to turn off or 1 to turn on. Since each device shares a single red/green LED (power LED green & power LED red) setting both to 1 at the same time will always leave it red. That is when power LED green and power LED red are both enabled, red always takes precedence.
	228	+
	229	+Use following script to power LEDs one at a time:
	230	+
	231	+{{code language="c++"}}
	232	+#include <PCA9554.h> // Load the PCA9554 Library
	233	+
	234	+PCA9554 ioCon1(0x24); // Create an object at this address
	235	+
	236	+uint8_t mapIO = 0b10000000;
	237	+
	238	+void shiftL() {
	239	+ mapIO = (mapIO << 1) | ((mapIO & 0x80) >> 7);
	240	+}
	241	+
	242	+void write() {
	243	+ Serial.println("writing to PCA9554 device");
	244	+
	245	+ for (int i = 0; i < 8; ++i) {
	246	+ ioCon1.digitalWrite(i, (mapIO & (1 << i)) ? 0 : 1);
	247	+ }
	248	+}
	249	+
	250	+void setup()
	251	+{
	252	+ Serial.begin(9600);
	253	+ Serial.println("Setup");
	254	+
	255	+ ioCon1.portMode(ALLOUTPUT);
	256	+}
	257	+
	258	+void loop()
	259	+{
	260	+ write();
	261	+ shiftL();
	262	+
	263	+ delay(500);
	264	+}
	265	+{{/code}}
	266	+
	267	+
	268	+Controlling middle IO strip
	269	+
	270	+0 = 0000
	271	+1 (green) = 0001
	272	+2 = 0010
	273	+1 + 2 = 0011
	274	+3 = 0100
	275	+
	276	+
	277	+There are 4 words, each containing 7 data bits. They do not
	278	+
	279	+
	280	+
226	226	)))
227	227
228	228