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USB-DAQ
USB-DAQ is a low cost data logging system. In normal
operation it is powered by a battery cell and logs data as required. It has analogue,
digital, comparator and counter inputs. When plugged
into a USB port, USB-DAQ appears on the PC like a removable
disk.
The user can specify data logging requirements in a text
file, and access logged data from a CSV (comma separated values) file. No software
or firmware programming is required. If the battery cell is rechargeable, it can be recharged while plugged in.
USB-DAQ uses the Mass Storage Device (MSD)
USB profile. It does not require USB driver installation, and so is immediately compatible with
present and future Windows, Linux and Mac operating systems.
USB-DAQ can use internal flash memory for small amounts
of data storage, a 25AA1024 EEPROM chip for moderate data storage (128Kbyte). The
28-pin device can additionally use SD card memory and chips up to 1GB.
Features
• True MSD plug and play - No drivers required
• Compiled BASIC-style instruction set
• One or two chip solution, on-board flash or external serial memory
• USB 2.0 compatible
• 32kHz real time clock
• Variety of I/O channels including:
- 10-bit multi-channel A/D
- Analog comparators
- Counter inputs
- Digital I/O with autonomous event-driven output
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