Astronomy a beginners guide to the universe 8th CHaisson mcmillan chapter 04

... Mounting the Servomotors Leg Positioning Linkage vii 88 89 90 91 97 99 10 0 10 1 10 4 10 7 10 9 11 2 11 4 11 5 12 1 12 1 12 1 12 1 12 1 12 3 12 3 12 5 12 6 12 6 12 8 12 9 13 1 13 3 13 7 13 9 13 9 14 1 14 1 14 3 14 3 14 3 14 4 14 4 14 5 ... Little Feedback Servomotors 15 4 15 5 15 8 15 9 16 4 16 5 16 7 16 7 16 7 16 7 16 8 16 8 16 8 16 9 16 9 17...

Ngày tải lên: 10/08/2014, 04:22

... (1) 0.1­�F capacitor RadioShack PN# 27 2­1069 (8) Red LEDs RadioShack PN# 27 6 20 8 (8) 470­� resistors* RadioShack PN# 27 0­1115 (1) 4.7­k� resistor RadioShack PN# 27 1­1 126 (1) Voltage regulator (7805) RadioShack PN# 27 6­1770 ... Program option from the Run menu. An alternative to using the menu option is  to press  the Ctrl  and  P buttons  on  the keyboard.  The software  is  then u...

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... (directory) command to see the two additional files (.asm and hex) created by the PicBasic compiler Using DOS to Code, Compile, and Program  43 The dir command displays all the files and subdirectories within the sub­ ... sure there are no PIC microcontrollers installed onto the board If you have an ac  adapter  for  the EPIC  Programmer  board, plug  it  into  the board If  not, attach...

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... 48 Chapter Five Figure 5. 14 Hexadecimal numbers showing in EPIC window are the machine language version of the wink.bas program that is uploaded (programmed) into the 16F 84 microcontroller ... The breadboard on the right is similar but provides a larger prototyping area If you wish to make any circuit permanent, you can transfer the components onto  a standard  printed­circuit  board ...

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... Depending upon which PicBasic compiler is used, the commands are a little different For the PicBasic compiler, the command to write to a register is the poke command The program line to write the decimal value 1 into the TRISB ... If we connect an LED to each output line, we can see a visual indication of any number we write to port B If we want to turn on the LEDs connected to RB2 and R...

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... bearing needs to be removed so that you can cut away the stop tab from the gear Use a hobby knife or miniature saw to cut away the stop tab When you are finished cutting off the tab, check that the cut surfaces are smooth ... U bracket with drive servomotor attached The front of the mounting ears, both top and bottom, on the servomotor has small tabs (see Fig 8.22) Cut and file away these t...

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... Fudge Factor The variable RV (range value) is the fudge factor At the beginning of the pro­ gram the variable RV is assigned a value of 10 In my prototype I actually used an RV of 2 because I had matched the resistance values of CdS cells, ... for this robot that matches, as best as one can match them, in resistance Since  the resistance  value  of  the CdS  cells  can  vary  so  greatly,...

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... Place the tubing over the gearbox motor  shaft, and  collapse  the tubing  onto  the shaft, using pliers There  is  a small cutaway on the gearbox motor shaft (see Fig 9.10) If you can collapse the tubing into this cutaway, ... You can do the same or hardwire the components to a PC board The circuit is pretty straightforward The gearbox motors require a power supply of 1.5 to 3.0 V R...

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... we need to bend the aluminum bar into shape Secure the aluminum bar in a vise 23/4 in from the end with the drilled holes Pressure is applied to bend the aluminum bar at a 90 ° angle It’s best to apply pressure at the base of the aluminum bar close to the vise ... the aluminum bar 90 ° Don’t go fast, or you could easily snap the aluminum bar Repeat the twist on the other side After the two 9...

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... and off directly from the board The advantage of the active high output signal is cost This board would cost much less than the interface board containing 10 relays The advantage of the relay board is that the miniature power relays have enough current capacity ... Once you are satisfied with the accuracy, remove the digital display board and the keypad Next connect the speech interface bo...

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... Next we require two more A bracket components One A bracket com­ ponent has a servomotor horn attached to its bottom holes, and the other A bracket component has a servomotor attached and is laid on its back as a base ... shows  how  the servomotors  are  attached  to the gripper Assemble one part A and B bracket, as shown in Fig 12.18 Attach a ser­ vomotor to the A portion of the bracket...

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... mounting the base servomotor Figures 12. 37 and 12. 38 show the sides for the base Figure 12. 39 is a metal baseplate The two servomotor blocks are mount­ ed to the baseplate, using wood screws through the bottom ... should be right underneath the top plate Place the bottom servomotor brack­ et of the robotic arm on top of the top plate Secure the servomotor bracket (and top plate) to the...

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... ket material to the bottom of the plastic footpad to make the pad nonskid The footpads  provide  a larger  surface  area  that  makes  it  easier  for  the biped to balance and walk They are attached to the bottom U bracket of the bottom servomotor I arbitrarily chose to make the footpad size 1.5 in wide ... but you may have to purchase the horns separately Footpads The footpads for the...

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... You can find other commands in the CMU manual Interfacing the CMU Camera to a Robot The first step in interfacing the camera to a robot is to establish communica­ tion between the PIC microcontroller and the CMU camera ... At any time you need or want to reconnect the CMU camera serial interface  to a PC, you  will  need  to place  the MAX232  chip  back  onto  the board Plug the TTL c...

Ngày tải lên: 10/08/2014, 04:22