By John Iovine
This 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 each one with a PICMicro "brain.” The expertly written insurance of the PIC uncomplicated computing device makes programming a snap -- and many fun.
Read or Download PIC Robotics: A Beginner's Guide to Robotics Projects Using the PIC Micro PDF
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Extra resources for PIC Robotics: A Beginner's Guide to Robotics Projects Using the PIC Micro
4 (MCLR), a 4MHz crystal with two (22pF) capacitors and a 5V power sup ply. observe: The 4MHz crystal and two (22pF) capacitors make up an oscillator that is required by the microcontroller. These three parts may be substituted with a 4MHz ceramic resonator. The two LEDs and the two resistors connected in series with each LED are the output. It allows us to see that the microcontroller and program are func tioning properly. Assemble the components as shown in the schematic (Fig. 6. 5) onto the sol derless breadboard. When you have finished, your work should appear as in Fig. 6. 7. even supposing the requirements sheet on the 16F84 states the microcontroller will operate on voltages from 2 to 6 V, I provided a regulated 5V power supply for the circuit. The regulated power supply consists of a 7805 voltage regula tor and two filter capacitors. Wink observe strength to the circuit. The LEDs attached to the chip will alternately turn on and off. Wink, …, wink. Now you know how easy it is to program these microcontrollers and get them up and running. fifty four Chapter Six Troubleshooting the circuit There is not too much that can go wrong here. If the LEDs do not light, the first thing to check is the orientation of the LEDs. If they are put in backward, they will not light. Next check your ground wires. See the jumper wires on the righthand side of the solderless breadboard. They bring the ground up to the two 22pF capac itors. fee all your connections. glance again at Figs. 6. 2 and 6. three to see how the underlying conductive strips relate to the push in terminals on best of the board. PIC Experimenter’s Board and LCD Display There are two optional tools you may want if you plan on experimenting with the PIC16F84 and microcontrollers in normal. They are the PIC Experimenter’s Board and LCD display. We will look at the LCD display first simply because a comparable liquid crystal display reveal is integrated into the PIC Experimenter’s Board and what we say about the standalone LCD display is also true for the PIC Experimenter’s Board LCD display. One thing PIC microcontrollers lack is some type of display. With a display, the chip could show us how a program is running or what it is detecting. moreover a show could permit the microcontroller to output textual and numeric messages to the user. To this end there are serial LCD displays on the market that only require a unmarried microcontroller’s I/O strains (pin) and a circuit flooring. The specific LCD display we are using receives standard serial data (RS232) at 300, 1200, 2400, and 9600 baud (Bd) (inverted or true). The LCD module is a twoline, sixteen character visible display. The full display is actually two lines by 40 characters, yet the extra 24 characters according to line are off monitor. We can use the PicBasic and PicBasic Pro serout command to communicate and output mes sages to the LCD display. The PicBasic and PicBasic seasoned compilers can ship and obtain serial details at three hundred, 1200, 2400, and 9600 Bd.