28125 Parallax Inc, 28125 Datasheet - Page 76

• Manufacturer Part Number: 28125
• Description: TEXT ROBOTICS
• Manufacturer: Parallax Inc

Specifications of 28125

• Title: Robotics with the Boe-Bot
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Not applicable / Not applicable

P13
P12
√
√
If you removed the LED circuits after Activity #2, make sure to rebuild them as
shown in Figure 2-15. They will be your servo signal monitoring circuits.
Move on to page 66 (Activity #4: Centering the Servos).
Disconnecting Power – Special Instructions for the Board of Education Rev C
Never leave the power connected to your system when you are not working on it.
470
√
Ω
To disconnect power from your Board of Education Rev C, move the 3-position
switch to position-0.
Vss
470
LED
Ω
Vss
LED
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
X2
X3
Vdd
Figure 2-14
Board of Education
with Servos and
Battery Pack
Connected
Vin
+
+
Vss
Figure 2-15
LED Servo
Signal
Monitor
Circuit