Okay, not spam (but yes it really does sound like it this time ;-) ) I thought a few of you might find this interesting: http://lockett.altervista.org/logic65/logic65_build.html It's a crude logic probe using a Teensy 3.2 board (around $20). I'm not sure of the impedance but pretty cool and might be useful for the folks that needs something flexible in their tool box. PS: Chris I'm really sorry about my message to the group yesterday. Yes, I'm poking fun at myself here. Hope to see many of you tomorrow. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies