First Isaac16 EDU, Reference Manual, Page: 8 / 12

Innovation First, Inc. EDU-RC & Motherboard Reference Guide
11.8.2002 www.InnovationFirst.com Page 8
8. ANALOG Inputs
The analog inputs on the Isaac16 EDU Robot Controller can be used to measure various conditions on
the robot and trigger automatic responses by the control (PBASIC) program. The Isaac16 EDU
Motherboard has four 3-pin ANALOG connectors (abbreviated AN). Potentiometers and gyros (yaw
rate sensors) may be connected to the analog inputs. For wiring 0-5V sensors such as gyros, refer to the
sensor manufacturer’s data sheet. The ANALOG pin headers are typically wired using 3-wire PWM
cables.
Potentiometers should be wired per the diagram below when connecting to the Analog Inputs. Always
use 100k
Ω
potentiometers.
100k
Ω
Shown below is the Analog Input port pin-out to aid in the connection of potentiometers, gyros and
other 0-5V output devices to an Analog Input.
Table 7.1: Analog Inputs and Software Function
Pin Function PBASIC Variable
AN1 Analog 1 sensor1
AN2 Analog 2 sensor2
AN3 Analog 3 sensor3
AN4 Analog 4 sensor4
Analog Input
+5V Output
Ground
Analog input
(Red)
+5V Output
(White)
Ground
(Black)