Electronics Projects, PIC16F877 Series I/O Circuit Analog Control System PLC Sampler article
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I/O control analog sampler plc system based on microchip pic16f877 circuit output serial rs232 pc connection is used the uln2003 in max232 IC with sag. pcb diagram 32-bit windows control program in other drawings, and is written in the source files, pressing the hex.
PIC16F877 I/O Project
rugget 10 bit digital input port (0-16volt) 0-5volt and 0-25volt analog voltaga inputs temperature and light sensing (ldr) inputs high current 10 bit digital output port closed loop control using two relays serial interfaca (2400 bits/s, inverted)
temperature accuacy: +- 1 c on board system timers plus buzzer 32 bit windows based software full function spreadsheet logger CRO-style analog graph plotter combination I/O “and or” logic
PIC16F877 Series I/O Circuit Analog Control schematic pcb source code alternative links: pic16f877-series-io-circuit-analog-control-system-plc-sampler.rar alternative link2 alternative link2