This peripheral is a module single chip with microcontroller ATmega8535 and ability of serial communications in UART and In-System Programming (ISP). This module is completed with array pad that is service the purpose of place for addition network. This compatible module for user is wishing having experiment, makes prototyping, or makes the application of simple. Example of the application of its is as display controller LED, controller driver motor, motion controller of robot, to changes data with computer, digital sensor reader and also analogue sensor, and memory access and PPI.
Program which has been written down into ATmega8535 serve the purpose of initial testing program. This program will test PD0 and PD1 as serial communications line then releases waving box at all of pin Port A, Port B, Port C and Port D.
Testing stages:
· Arranges jumper J2 and J3 that PD0 and functioning PD1 as serial communications line of UART RS-232 ( jumper connected).
· Connects serial cable to COM computer port and RJ11 at downloader.
· Connects source of tension 9 VDC to VIN.
· Implements program SERIAL1EXE. Determines COM port applied and depressed Test Serial.
· If serial communications run at ease, at program would seems to enlisting data sent received and is same (Sends = 0, Receives = 0; Sends = 1, Receives = 1; Sends = 2, Receives = 2, etc) and comes up windows to contain "Serial communications OK" !. If serial communications didn't go well, at program would seen difference of data received sent and comes up windows to contain "Serial communications of errors".
· Waving visible box passed oscilloscope or interfaced to network LED or DT-I/O LED LOGIC Tester so that seen its "ON-OFF" the LED.
