27403 Parallax Inc, 27403 Datasheet - Page 17
27403
Manufacturer Part Number
27403
Description
GUIDE APP ROBOTCS W/SUMOBOT V1.0
Manufacturer
Parallax Inc
Datasheet
1.27404.pdf
(266 pages)
Specifications of 27403
Accessory Type
Manual
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SumoBot®
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
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an even number of times, including zero, the
message prompting you to press the Reset button, then it ends the program ends.
If you have already completed Robotics with the Boe-Bot, the forward motion code in
Forward100Pulses.bs2's Main Routine should be very familiar. Although Chapter 4,
Activity #1 features a quick review of the servo control principles that were introduced in
Robotics with the Boe-Bot, the information box below lists a few activities you can try to
get up to speed.
Figure 1-4 shows the servo connections you made in the SumoBot text. The left servo
connects to header X7 on the SumoBot board. The plug at the end of the servo's cable
plugs into X7 so that the black wire connects to the B pin, the red wire connects to the R
pin, and the white signal line connects to the pin labeled 13. Traces on the SumoBot
printed circuit board in turn connect the header pin labeled 13 to BASIC Stamp I/O pin
P13. The also connect the pin labeled R to Vdd, which is the board's regulated 5 V
power supply, and the pin labeled B to Vss, which is the board's ground or 0 V
connection. The right servo connects to header X6. The difference with X6 is that it
connects that servo's white signal line to BASIC Stamp I/O pin P12 instead of P13.
Understanding How Pulses Control Servos
If you have not already worked through Robotics with the Boe-Bot v2.2, download it from
www.parallax.com, and try the following chapters and activities:
Chapter 2, Activity #6
Chapter 3, Activity #4
Chapter 4, Activity #1 to Activity #6
The servos are connected to the same I/O pins, so the example programs will run correctly
in your SumoBot. The only part that will not work is the piezospeaker, which is connected to
P4 in Robotics with the Boe-Bot. If your piezospeaker circuit is connected to P1, simply
update every instance of FREQOUT 4, 2000, 3000 to FREQOUT 1, 2000, 3000.
Reset_Button
Chapter 1: Mechanical Adjustments · Page 13
routine just displays the
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