Page 263 - Making PIC Microcontroller Instruments and Controllers

PROJECI4 261

qTY DESCRIPTION
1 I Experimenlels circuit board
(available as a kit irorn encodergeek com)
Radioshack gener c boardi Velleman striped board
Alietnalives:
display LCD
2 1 l6-char-by-2-line
3 1 llicrochlp 16F877A microconlrolier
4 I 20-MHz crystal
capacitofs
5 2 22 Picofarad
6 1 2leet of hookup wire
7 1 l0 K resislor l/8 walt lor [,'lcLR
8 1 7805 voltage fegulator
9 1 1.0 uF cap l0 vols
10 1 0.1 uF cap 10 volts
l ? | [,434lempe alu e dFleclor!
12 1 Battery holder wiih nuls and screws
13 1 Batery pigtall
'14
1 Red LED
15 1 Switch
16 1 470 ohm l/8 watl resislor lor red LED
17 1 Brackel to mount switch
18 1 g_voll battery
iler.s lrom the ]unk drawer
19 X [,4 scellaneous
20 2 Three pole screw conneciorslor sensors
21 1 4o-pin sockel for the PIC
conneclor
22 1 2 x 5 pin programrnlng
23 1 Box to hoid ever)4hrng

pins can bc changed over to digital nodc by setting (hc 4lower bil! in ihe ADCONI
rcgister as indicated in Tablc 18.2.
The full lablc ls on the ncxt page.
Note thrt pin PORil.l.4 is r.)t idded in Table 18.2. This pin is an opcn collector
Pay special attenlior to how the rcference lollages afe specilled at the various pirs.
See the dalasheet.