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5V/3.3V breadboard power supply designed by SeeedStudio. It can directly takes power from DC wall wart and outputs both 5V and 3.3V regulated voltage. Compare to other breadboard power supply designs、this one provided micro-USB port、you can use both 5V and 3.3V regulated voltage. The 5V/3.3V breadboard power supply includes micro-USB port and power jack port. This power supply fits the breadboard which is 5.3cm wide like Bread board Clear - 8.2×5.3cm、and it can fit the 5.5cm wide breadboard too Basic Bread board - 16.55.5 cm、but just a little tight.。Features：Dual lane outpu。Dual power port input。5V/3.3V regulated voltage。Maximun output current is 400mA。Part list：5V/3.3V Breadboard Power Supply Board 1。Specification：Input voltage：7V 15V。Output Voltage：3.3V Channel：3.267V - 3.333V。5V Channel：4.9V 5.1V。Output current 400mA

。SDLogger is a simple serial logger based on SparkFun/Nathan Seidle's OpenLog. It is using an ATmega644P processor running at 14.7456MHz and logs to full-size SD cards. It supports both standard SD cards(FAT16)and SDHC cards(FAT32). SDLogger ships with OpenLog firmware 1.61 installed(compiled with SDHC/FAT32 support and large 2048 character input buffer)together with an Arduino-compatible bootloader for easy program update.。Features。Simple to configure and use。Automatically logs data received on the serial input port。Can be configured using a config file on the SD card。Supports 2400、4800、9600、19200、38400、57600、115200 and 230400 serial baud rates at 8-N-1.。Supports both standard SD cards up to 2GB(FAT16)and SDHC cards up to 16GB(FAT32)。Large input buffer(2048 characters)。Full-size SD card form factor。14.7456 MHz crystal oscillator for precise baud rate generation。Input voltage range：3.3 to 12V。Arduino-compatible bootloader installed for easy program update。Full Arduino environment support - can be used as an inexpensive Arduino board for program development。I/O ports supported in Arduino environment(in addition to the main serial port)：4 analog inputs、second serial port、I2C port。Simple SDLogger original firmware restore procedure using the Arduino environment。SDLogger hardware/firmware designed by Saanlima/Magnus Karlsson and released under CC BY-SA v3 license。Design files、Arduino code and other ported code available on GitHub