LeoEc USB pH interface
LeoEc the Leonardo electroconductivity (eC/TDS/Salinity) Interface is an Arduino compatible USB eC interface created to make eC monitoring and/or controlling projects as simple as possible. Able to communicate over many protocols (USB,I2C, SPI, Serial, 1Wire) its the perfect unit to add into any project that requires eC logging or control! The Manual contains usage information as well as specifications and pins outs. This is an open source hardware project and all files can be found on LeoEc’s Project page!
Reading eC just got a bit easier
With Arduino1.0.2 and up how the Leonardo reset was changed and with the popularity of the LeoEc platform I though it would be a good idea to update the hardware and bring the bootloader up to the newest version.
As before reading eC has never been easier, and with the new hardware version so it augmenting LeoEc! All Standard Leonardo pins are brought out via the Digital Header and Analog header!
Simply plug in LeoEc via a USB port, point you favorite Serial Port monitor to LeoEc’s port and off you go!LeoEc even works on openWRT flashed routers for pH readings over Wifi!
Please see LeoPhi’s Project page for more information!http://www.sparkyswidgets.com/Projects/LeoPhi.aspx
Usage of LeoEc is very easy, with on board USB a fully CDC compatible bootloader (modified Leonardo) all you need to do is plug it in and send some serial commands! Send an S to calibrate to ph 7 solution, F to calibrate to 4 an R to read and etc…
There are 2 serial ports one for the USB and one is the hardware serial port(Tx,Rx), this makes it useful as a USB to serial converter as well, but also means that the proper port must be select for use in any project. For example a Raspberry pie could interface LeoEc(careful on levels) over USB serial while the same data is dumped over the Hardware Serial to another Arduino.