By John Iovine
Here is every little thing the robotics hobbyist must harness the facility of the PICMicro MCU!
In this heavily-illustrated source, writer John Iovine offers plans and whole elements lists for eleven easy-to-build robots every one with a PICMicro "brain.” The expertly written assurance of the PIC easy computing device makes programming a snap -- and many fun.
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0MHz Xtal 2. 50 (2) 22pF capacitors zero. 10 each Available from Images SI Inc. (see Suppliers at end of book). Additional components are required in Chap. 6: (1) Solderless breadboard RadioShack PN# 276175 (1) 0. 1�F capacitor RadioShack PN# 2721069 (8) Red LEDs RadioShack PN# 276208 (8) 470� resistors* RadioShack PN# 2701115 (1) 4. 7k� resistor RadioShack PN# 2711126 (1) Voltage regulator (7805) RadioShack PN# 2761770 (2) Fourposition PC mounted switches RadioShack PN# 2751301 (1) 9V battery clip RadioShack PN# 270325 to be had from RadioShack, photos SI Inc.
26 Top dimensional view of bumper fabricated from 1�8in � 1�2in � 32in aluminum bar. 5-40 nuts Aluminum bumper 1-in-long aluminum bar 5-40 laptop screws Figure 8. 27 Cutaway closeup of aluminum bracket used to secure the open ends of the bumpers. The second half of the tile switch is comprised of a 1in 632 plastic machine screw and three 632 machine screw nuts. One nut must be brass with a wire soldered to it (see Fig. eight. 31). Figures 8. 32 and 8. 33 are closeup photographs of the finished bumper switch.
As the name implies, the button command is made to read the status of an electrical button switch connected to a port B pin. Figure 6. 24 shows two basic switch schematics, labeled A and B, of a simple switch connected to an I/O pin. The button command structure is as follows: button pin, down, delay, rate, var, action, label Testing the PIC Microcontroller seventy three Figure 6. 24 Schematic of electric switches suitable for use with PIC microcontrollers. Pin Pin number (0–7), port B. Down State of pin when button is pressed (0 or 1).
If you are operating out of a DOS window, you may get a device conflict mes sage box, shown in Fig. five. eleven. We want MSDOS to control the LPT port so the EPIC programming software program will paintings. pick out the MSDOS recommended and hit the OK button. EPIC’s opening screen is shown in Fig. five. 12. Use the mouse to click on the Open button, or press ALTO on your keyboard. Select the wink. hex file (see Fig. five. 13). When the . hex file loads, you will see a list of numbers in the win Figure 5. 10 Entering DOS EPIC command to start program.