USB Datalogger Kit

SKU: AK2572

Retired Product

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This product has been retired. It is no longer available, but this page has been kept for reference.

(Silicon Chip Magazine December '10 - March 11) Based on a PIC micro, this simple project can log lots of data to a memory card. It can read from many types of digital and analog sensors and features a real-time clock and calendar to "time-stamp" the data. It has a USB port and comes with a PC host program, allowing you to configure the sensors, change settings and charge the battery.

This low-power USB Data Logger is useful for a myriad of applications, especially where you need to log data over a long time period. It logs to an MMC/SD/SDHC memory card (with FAT file system), which means you can store up to 32GB of information. That’s a lot of logged data.

The average current consumption is typically less than 1mA and it can be powered using two AAA cells (either NiMH rechargeable types or alkaline). Alternatively, it can be powered from a USB port on a PC or an external 5-7V DC supply.

If NiMH cells are fitted, these will be recharged whenever the device is connected to a PC (via the USB port) or powered from an external DC supply.

The logger can accept inputs on up to eight lines, with a maximum of up to six digital lines and up to four analog lines. Many different types of analog and digital sensors can be used and the digital inputs can also be used for frequency measurement or event counting. It is even possible to connect a GPS (Global Positioning System) module to log geographical coordinates as well.

Important Note For Kit Buyers:
This product is supplied in component form and requires soldering, drilling, and assembly. We recommend users are familiar with at least basic electronic principles and have the ability to solder.

Features

Uses an MMC/SD/SDHC memory card (FAT file system) for up to 32GB of storage capacity.
USB full speed (12Mbps) interface for connection to a PC.
Host PC program for Windows-based PCs.
Up to six digital sensor inputs with support for I2C (Inter-IC Communications) and One Wire Dallas protocols. Also supports a Full Duplex Serial Port UART (Universal Asynchronous Receiver Transmitter) interface (eg, for connecting a GPS module).
Up to four analog inputs (two shared with digital inputs) with 12-bit A/D conversion and ±5% accuracy. The analog inputs can also accept frequency signals up to 192kHz or can function as a 32-bit event counter.
Custom scripting language allows a wide range of different digital sensors to be used.
Low power consumption (around 1.5mA in standby mode).
Flexible power options – can be battery-powered (using two AAA cells), USB powered or powered from an external 5-7V DC power source.
NiMH cells can be trickle-charged using USB power or an external power source.
An external voltage reference can be connected for greater than ±5% accuracy on the analog inputs.
Battery protection to prevent over-discharge.
Includes an on-board Real Time Clock Calendar (RTCC).

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Retired

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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