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--- wiki:pinouts [2022/02/17 08:39]
vizycam [Notes]
+++ wiki:pinouts [2022/03/08 11:04] (current)
vizycam [Notes]
@@ Line 1: / Line 1: @@
 ====== Vizy I/O ======
-Vizy has a terminal block connector that gives you lots of I/O possibilities with high-current output for controlling motors, solenoids, relays, lighting (and even sprinkler valves!)
+Vizy has a terminal block connector that gives you lots of I/O possibilities, with high-current output for controlling motors, solenoids, relays, lighting (and even sprinkler valves!)
-For information on powering vizy go [[wiki:powering_vizy|here]].
+More information about powering Vizy can be found [[wiki:powering_vizy|here]].
 {{wiki:image_438.jpg?600}}
@@ Line 18: / Line 18: @@
 ==== Notes ====
-  * All logic level outputs of B0 through B3 are 0V (low) to 3.3V (high).
+  * As inputs, B0 through B3 can each accept up to 12V input voltages (not to exceed input power voltage, which is typically 12V.)
-  * B0 through B3 can accept up to 12V input voltages (not to exceed input power voltage, which is typically 12V.)
+  * As inputs, B0 through B3 can each accept 5V TTL voltages.
-  * B0 through B3 can accept 5V TTL inputs.
+  * As inputs, B0 through B3 each have 1.3V of hysteresis: the low-to-high threshold is 2.3V, the high-to-low threshold is 1.0V.
-  * If B0 through B3 are configured as inputs, there is 1.3V of hysteresis: the low to high threshold is 2.3V, the high to low threshold is 1.0V.
+  * As inputs, B0 through B3 each have a 22K pull-up resistor to 3.3V.
-  * B0 through B3 in "high power" mode can sink up to 1000mA per channel, which applies when the channels are logic low (0V).  It can source up to 5mA per channel, which applies when the channels are logic high (3.3V).
+  * As outputs, B0 through B3 each vary between 0V (low) to 3.3V (high).
-  * B0 through B3 have a 22K pull-up resistor to 3.3V.
+  * As "high power" outputs, B0 through B3 can each sink up to 1000mA, which applies during logic low (0V).  Exceeding 1000mA may cause damage to Vizy's power board.  Each channel can source up to 5mA, which applies during logic high (3.3V).
-  * The 12V signal can source up to 4A if the power supply can supply this much current plus enough to power Vizy.
+  * The maximum carrying current of the 12V signal is 4.0A. Exceeding 4.0A may cause damage to Vizy's power board.
   * The 5V signal can source up to 2A.
-  * All I/O pins are protected from static discharge.
+  * All I/O connector signals are protected from electrostatic discharge.
@@ Line 39: / Line 39: @@
   - Insert the terminal block into Vizy.
-===== Using with software =====
+===== Control the I/O with software =====
-The Vizy applications such as the birdfeeder application use specific pins of the I/O connector to control things such as lights, motors, relays, and sprinkler valves.
+The Vizy applications, such as the [[wiki:birdfeeder_app|birdfeeder application]], use specific pins of the I/O connector to control things such as lights, motors, relays, and sprinkler valves.
 If you wish to control the I/O signals with your own code, check out the [[wiki:api_VizyPowerBoard|Power Board API]].

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