PlayPIC


Posted on Feb 6, 2014

This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It features eight single leds, a 7-segment display, an LCD display and five push buttons. It is an ideal solution for the beginner to take his/her first programming steps in the world of microcontrollers. Having an in-circuit-programming (ICP) header, it can b


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e easily reprogrammed without unplugging the microcontroller each time, provided that the programmer also supports this feature (like OziPic er). - The 7-segment display is always connected to the individual leds. Its seven segments correspond to LED2 to LED8 (RB1 to RB7) and the decimal dot to LED1 (RB0). This correspondence enables the 7-segment display to work together with the interrupt switch S7, which is connected to RB0. - JP4 is an 6-screw external input connector for RA0-RA4. When used, the corresponding input switches S3-S6 must be turned off by SW2. Last screw is ground. The top photo shows the in-circuit-programming procedure with the help of an appropriate programmer (like OziPic`er) which features an ICP header. In order for the procedure to work correctly, the LCD module has to be disconnected from its socket during programming.




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