This is my homemade I/O Board.
It has 3 momentary switches and 1 toggle switch.
Under the knobs are 2 10K pots connected to ADC0 and ADC1
The Green Jack accepts a 10K thermistor probe input to ADC2.
The Red Jack is an input to ADC3 for a Honeywell HIH-4000
Humidity Sensor. (Any 0-5V sensor really)
The eight 2 pin headers connect to all 8 input pins. PWM 1 and 2
come out here as well
The ribbon cable is an unmodified Floppy drive cable (34 Pin)
that fits perfectly on the 28 X 1 Project board from Rev-Ed,
covering both the 20 Pin and 10 Pin connectors for the digital
and analog inputs. So this plugs directly into the 28 Pin Project
Board across both input connectors.
With this little board I can do a lot of testing and not have to bother with a
breadboard and all the "gotchas" that come with that.
Took about 6 hours and 6 beers to make and well worth the time.
Goeytex
It has 3 momentary switches and 1 toggle switch.
Under the knobs are 2 10K pots connected to ADC0 and ADC1
The Green Jack accepts a 10K thermistor probe input to ADC2.
The Red Jack is an input to ADC3 for a Honeywell HIH-4000
Humidity Sensor. (Any 0-5V sensor really)
The eight 2 pin headers connect to all 8 input pins. PWM 1 and 2
come out here as well
The ribbon cable is an unmodified Floppy drive cable (34 Pin)
that fits perfectly on the 28 X 1 Project board from Rev-Ed,
covering both the 20 Pin and 10 Pin connectors for the digital
and analog inputs. So this plugs directly into the 28 Pin Project
Board across both input connectors.
With this little board I can do a lot of testing and not have to bother with a
breadboard and all the "gotchas" that come with that.
Took about 6 hours and 6 beers to make and well worth the time.
Goeytex
