Produktbeskrivning
OpenLog is an open source data logger. Simple to use, simple to change. We wanted to create a serial logger that just worked. Power this device up and send it serial commands. 'new' will create a new file. 'md' makes a directory. '?' brings up the list of commands. OpenLog doesn't do a lot, but it does log serial streams extremely well. Example:
>new testfile.txt
>append testfile.txt
<(send large amounts of text followed by Ctrl+z)
That's really it! You don't even have to send the Ctrl+z (ASCII 26) to complete the file. The buffer will store all received characters as they come in (a maximum of 511 bytes may be lost in the buffer if Ctrl+z is not received). You don't even need to create the file - you can do that on a computer using a microSD reader. Please see the notes at the beginning of main.c for more information.
OpenLog firmware is open source and is based on Roland Riegel's FAT library. OpenLog currently supports FAT16 (upto 2GB microSD cards). We're working on FAT32 and would love your help!
Features:
* Log to low-cost microSD cards up to 2GB
* Simple command interface
* Configurable baud rates (2400 to 115200bps)
* Doesn't drop characters even at full-blast 115200bps
* Power, ground, and RX-I are the minimum connections
* Reprogrammable ATmega328 using the standard STK500 serial bootloader
* Two LEDs indicate writing status
* Input voltage from 3.3V to 12V
* 8mA idle, 18mA at maximum recording rate
Dimensions: 0.16 x 0.6 x 0.75" (4 x 15 x 19mm)
>new testfile.txt
>append testfile.txt
<(send large amounts of text followed by Ctrl+z)
That's really it! You don't even have to send the Ctrl+z (ASCII 26) to complete the file. The buffer will store all received characters as they come in (a maximum of 511 bytes may be lost in the buffer if Ctrl+z is not received). You don't even need to create the file - you can do that on a computer using a microSD reader. Please see the notes at the beginning of main.c for more information.
OpenLog firmware is open source and is based on Roland Riegel's FAT library. OpenLog currently supports FAT16 (upto 2GB microSD cards). We're working on FAT32 and would love your help!
Features:
* Log to low-cost microSD cards up to 2GB
* Simple command interface
* Configurable baud rates (2400 to 115200bps)
* Doesn't drop characters even at full-blast 115200bps
* Power, ground, and RX-I are the minimum connections
* Reprogrammable ATmega328 using the standard STK500 serial bootloader
* Two LEDs indicate writing status
* Input voltage from 3.3V to 12V
* 8mA idle, 18mA at maximum recording rate
Dimensions: 0.16 x 0.6 x 0.75" (4 x 15 x 19mm)