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March 21, 2013
about 4 years ago
The problem with this board/chip is that the current line is not isolated from the electronics side of the circuit. Take a look at the ACS712 breakout board. It is totally isolated -- but be aware the Sparkfun design does not leave enough gap between the current trace and the electronics ground plane. (Look at the Allegro spec sheet.) It is a nifty board for circuits up to about 25V isolation.
Also note that you can place a resistive shunt across the current sense terminal to increase the upper range. I use ACS712 board with a 500 amp shunt to monitor motor current in my electric vehicle.
about 5 years ago
Just received my two Kickstarter kits. Plugged everything into the first kit and connected to the Arduino IDE software. After loading the library, I connected to the port - /dev/cu.usbserial-DA00SWER - and "HelloWorld" worked first time out.
Found a notification on - http://learn.microview.io/intro/getting-started.html - that you are having some difficulties with some kits so I fired up my second MicroView. It did not run straight out, BUT i found that the port connection was at a different address - /dev/cu.usbserial-DA00SUDC. After changing the port, everything worked fine.
Do all FTDI programming boards have a different address? This may be a bit confusing to some, but the good news is that you can run more than one programmer on the same IDE.
Inquiring minds would like some clarification.
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