product_comparison.md

layout	single
title	Product Comparison

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	[uMMC Data Storage Module]({{ base_path }}/documentation/ummc)	[uMP3 Playback Module]({{ base_path }}/documentation/ump3)	[rMP3 Playback Module]({{ base_path }}/documentation/rmp3)
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	Features
Card Types	SD/miniSD/microSD
Card Formats	MMC/SD/SDHC/SDXC
Card Sizes	8MB → 2TB
File Systems	FAT12 FAT16 FAT32
Control Interface	TTL Serial	TTL Serial 7 bit w/trigger 8 buttons	TTL Serial 7 bit w/trigger 8 buttons
Serial Speeds	2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 bps
ASS Compatible (Arduino Shield Standard)	No	No	Yes
Audio Playback	No	Yes	Yes
Audio Formats	-	MP3 PCM WAV IMA ADPCM
MP3 Bitrates	-	32 → 320 kbps
MP3 Sample Rates	-	32, 44.1, 48 KHz
Analog Output Load Resistance	-	16Ω (minimum)
Operating Temperature	-40°C to +85°C
Power Source	3 → 5 Volts		5 Volts only
Chipset Available	Yes
Latest Firmware Version	102.08	111.08	100.01
	[uMMC Data Storage Module]({{ base_path }}/documentation/ummc)	[uMP3 Playback Module]({{ base_path }}/documentation/ump3)	[rMP3 Playback Module]({{ base_path }}/documentation/rmp3)

Educational/Rapid Prototyping Products

	[rDuino LEDHead]({{ base_path }}/documentation/rduino)	[rEDI Board]({{ base_path }}/documentation/redi)
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	**Discontinued**{: style="color: red"}	**Discontinued**{: style="color: red"}
	Features
Operating Temperature	-40°C to +85°C
Power Source	5 Volts Regulated or 7 → 12 Volts DC Jack
On-board Regulator	7805 - 5 Volts, 1 Amp	LM1085 - 5 Volts, 5 Amp
Provides 3.3V Supply	No	Yes
MCU	Atmel ATmega644P
Oscillator	16 MHz
Flash Memory Total	65536 bytes (64 KiB)
Flash Memory Available	63488 bytes (62 KiB)
SRAM	4096 bytes (4 KiB)
EEPROM	2048 bytes (2 KiB)
Hardware Serial Ports	2
DS1307 RTC On-board	Yes	Yes
LEDs On-board	8	4
USB Serial On-board	No	Yes
	[rDuino LEDHead]({{ base_path }}/documentation/rduino)	[rEDI Board]({{ base_path }}/documentation/redi)