31316 Parallax Inc, 31316 Datasheet - Page 10

• Manufacturer Part Number: 31316
• Description: Microcontroller Modules & Accessories AP-16 Audio Player
• Manufacturer: Parallax Inc
• Series: Propeller™r

Specifications of 31316

• Product: Microcontroller Accessories
• Data Bus Width: 16 bit
• Clock Speed: 44.1 KHz
• Operating Supply Voltage: 18 V
• Board Size: 107.95 mm x 114.3 mm
• Main Purpose: Audio, Audio Processing
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: P8X32A
• Primary Attributes: Plays Stereo WAV Files (16-bit), Dual 20W Amps (1 Per Channel)
• Secondary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Syntax:
Reply:
The "R" (relay control) command is used to activate (1) or deactivate (0) the on-board relay.
Prop-1 Example
In this example, the AP-16+ at address %00 will activate the relay. Note that the "R" command works even
when "NORELAY.TXT" is present on the SD card.
Status LED
The AP-16+ uses a multicolor status LED (S) to provide information regarding the operational state. The table
that follows illustrates steady and blinking patterns that you will see from the status LED under various
operational conditions.
SD Card
The AP-16+ can use any standard SD card that is FAT or FAT32 formatted, up to 4G in size. For best per ­
formance you should only put those files actually used by the project onto the SD card.
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"R" :: Relay Control (added in Version 1.7)
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SEROUT Sio, OT2400, ("!AP16", %00, "R", 1)
NOTE: Always switch off power before removing or inserting the SD card. Failure to do so could
result in one or more corrupted files.
NOTE: Not all SD cards are the same, and that they will work well in a PC does not necessarily
mean they will work well with the AP-16+. The latest firmware release, version 1.7, increases the
SD buffer size which has shown to work well with slow SD cards.
"!AP16", address, "R", status
None
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