CON1 description
Pin Function
1 Digital outputline d3 or can function as digital input line 0
2 Digital outputline d2
3 Digital outputline d1 reserved for switch box: 1 = off 0 = on
4 Digital outputline d0 reserved for switch box: 0 = off 1 = on
5 Output: 5 V digital (max. 30 mA when powered from USB),
or input (if not powered from USB): 5 V power supply (100 mA min.),
6 DGND
7 10 V analog (adviced max. 50 mA)
8 Sense
9 AGND (connect to metal housing / cable shielding)
10 WE
11 RE
12 CE
The digital I/O lines are at 5V.
2.1 CON2 description
Pin Function
1 Tx (serial port) at 5V
2 Rx (serial port) at 5V
3 Reserved (DO NOT CONNECT THIS PIN)
4 Voltage reference (4.096 V)
5 Reserved for use with external interrupt signal
6 DGND
7 Reset (active high)
8 Download (active low)
9 ADC ch.2 (range 0 – 4.095 V)
10 DAC ch.1 (range 0 – 4.095 V) The load must have an impedance of at least 5 kohm.
11 DGND
12 5 V power supply (500 mA min.), if not powered from USB
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