Quite expensive and missing vref
For MinipH I2C pH interface
Overal fairly pleased, but I am a little disappointed that it didn't include the precision VRef. MCP1541T-I/TT (a <£0.5 chip) indicated on the schematic, but at least it did include the passives C1/C3.
If you need to find the chip it can be found here:
http://uk.farnell.com/microchip/mcp1541t-i-tt/ic-sm-precision-volt-ref-4-096v/dp/1084310RL
You'll also need to desolder SJ1 found on the top of the board.
