Application development board for PIC16F628

An 18-pin PIC uC development board (PIC16F628) recommended for development and test programs written for this CPU or other compatible ones. The user can observe the status of the 13 uC inputs / outputs via LEDs or may change input status using push buttons. The quartz oscillator is mounted in a socket if you want, so that it can change with another. The system can also have a socket for the IR sensor, if you want to connect several types of sensors IR, or digital temperature sensors and integrates a TTL-RS232 signal converter to allow direct connection to the PC on the serial port. UC programming is done directly in the system, without removing it from the board, using the ICSP connector, using the programmer in the circuit. The power supply of the circuit is made from a single source voltage of 9-12V. The PIC16F62x microcontroller has a total of 16 pins that can be used by the user, of these, 15 can be used as I / O and one only as input.

If 'external oscillator' mode is used, then two of the I / O pins are used to connect a quartz crystal or resonator, leaving 13 I / O pins. Each I / O pin controls an active LOW LED when configured as output. For pins configured as input, the user can manually change their status via push buttons. The entrance is activates LOW when the corresponding button is pressed, so it is held in the HIGH state by a 5V pull-up resistor. RB1 and RB2 pins can be configured as digital I / O or as Rx / Tx signals for the USART internal to uC. The selection of the use of these pins (digital, I / O or USART) is made by two jumpers (J2 and J3). RB6 and RB7 pins are also used for circuit programming (ICSP) of uC (in this case two jumpers are used to disconnect the respective pins from the rest of the system during programming). The IR sensor output is connected to pin RB4 and can be read when it is configured as input. The IR sensor does not need to be connected to system if pin RB4 is configured as output.

The consumption is maximum 70mA with all LEDs on.

The system is compatible with the following types of CPUs:

PIC16F84a

PIC16F627

PIC16F818

PIC16F648

PIC16F819

PIC16F87

PIC16F88

PIC16F1220

PIC18F1320

Check the BoM for components.

Have fun with it !