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ADAFRUIT-AUDIO-FX-PinOut (voir la source)
Version du 29 décembre 2015 à 15:24
, 29 décembre 2015 à 15:24aucun résumé de modification
== Port Série ==
== Port Série ==
If you want to control the Sound Board over UART Serial, you can do so by using the TX, RX and UG pins.
* '''TX''' - this is the serial OUT from the board. 3.3V logic
* '''RX''' - this is the serial INTO the board. We add some level shifting so you can use 3-5V logic.
* '''UG''' - the UART/GPIO selector pin. Pulled high for default GPIO trigger mode. Tie to ground and reset the board for UART mode.
{{ADFImage|ADAFRUIT-AUDIO-FX-PinOut-20.jpg}}
== Ajuster le volume ==
These are two extra inputs that can be used to adjust the volume in GPIO trigger mode only. Connect buttons that go from each pin to ground, when the button is pressed, the volume will decrease or increase
The volume is '''not''' stored during power cycling or resets, so it will have to be re-applied after restarts.
{{ADFImage|ADAFRUIT-AUDIO-FX-PinOut-30.jpg}}
== Sorties audio ==
If you don't want to use the headphone jack, connect your amplifier to the Right, Left and Ground pins. These are line level outputs for headphones of about 30 ohms, not for big speakers! There are output DC blocking capacitors so you can safely connect directly to any kind of amplifier
== Broches de déclenchement ==
Finally, we're at the trigger pins! These are the 11 inputs that can be used to trigger audio playing. We'll go over how to set the file for each pin in a later page.
Each pin has a pullup resistor, use a button/switch to connect to ground when pressed in order to 'trigger' it. The board has debouncing logic built in.
{{ADFImage|ADAFRUIT-AUDIO-FX-PinOut-40.jpg}}
== Autres broches ==
We have a few other pins you may be curious about
* '''Rst''' - this is the reset pin, you probably don't need to use this pin but when tied to ground it resets the board.
* '''Act''' - this is the Activity pin, which goes low when an audio file is played
* '''CS''' - this is the chip select line for the onboard flash chip, do not connect anything to it! We use it for programming the chip during manufacture!
{{ADFImage|ADAFRUIT-AUDIO-FX-PinOut-50.jpg}}
{{ADAFRUIT-AUDIO-FX-TRAILER}}
{{ADAFRUIT-AUDIO-FX-TRAILER}}