Electronics > Projects, Designs, and Technical Stuff
Community Bench Meter
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xani:
well, ethernet use isolating transformer, just get a good one ;]
Curtisbeef:
For the USB data logging could it just be Opto-isolated serial lines going to a USB powered and Isolated from the rest of the board FTDI Serial Chip. Is that enough?
charliex:
just put RS232 out on it, after that its trivial to add on Wifi or Bluetooth.
EEVblog:

--- Quote from: badSCR on January 27, 2010, 10:55:40 pm ---*Serial IR ; slower speed, but the SD-Card could be used as a buffer.
*An SD-Card or usb flash drive  is a must for data logging. (for high speed data logging maybe 1~2Gb RAM)
*Auto Ranging?
*3~5 channel Volt meter/logic    And     Dual channel Amp meter.
*Would like the ability for 10~20 DC amps continuous.
*Ability to measure Resistance, Diodes, Inductors, and Capacitors.
*maybe a Transistor tester.
*micro volts/amps  or  pico volts/amps
*maximum 600 Volts to 1Kv ?
*phase angle (for three phase power) ?
*able to use Fluke Clamp-on Current Probes (for three phase power) ?
*low frequency Oscope ability (less then 200Khz) ?

*A Wall-adapter for a PSU.
*Able to use a Lithium-Ion battery pack from a cordless tool (non-charging).  If your some where and the battery dies then you could use the one from a power tool.
*D cells or the Big 6volt battery, both are easy to find.

*In Resistance mode it could tell you the color code and if it is within tolerance.
*Maybe a Composite video output.


--- End quote ---

Add an adjustable constant current output for testing LEDs.

Dave.
Thermal Runaway:
Of the features already mentioned, I have experience with the following:


* LCD Interfacing via serial and parallel methods, character and graphic
* SD Card interfacing for data storage and retrieval (currently working on a project that uses this)
* Infra-Red communications
* General Microcontroller firmware design
* General electronic circuit design
However, I am unlikely to be available to contribute to fun stuff like this until the academic year has ended (around about May/June).  I'll follow this thread with interest until then, and see how it's progressing in a few months time.  If there are still tasks I can help with at that time, I'll volunteer for some jobs.

Brian
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