Summary of PIC 18F – 28 PIN PIC Development Board
This article describes a versatile, cost-effective development board for Microchip's 18F-28 pin microcontrollers. It features a ZIF socket for easy chip removal, a marked ICSP connector for programming, and a plug-in crystal with jumpers for configuration. The board includes a bridge rectifier for polarity protection, a power-on LED, and a 7805 voltage regulator. All port pins terminate in headers to supply external devices, though users must manage current limits as no short-circuit protection is provided.
Parts used in the PIC18F Development Board:
- ZIF socket
- ICSP connector
- Jumper J1
- Jumper J2
- 20 Mhz Crystal
- Jumper J3
- Bridge rectifier D2
- Power On LED D3
- Voltage Regulator IC U2 7805
- Header connector
Description
This is a versatile, configurable, and cost effective Development Board designed for the 18F 28 pin series of Microcontroller from Microchip. The board is simplest form with all the Port pins terminating in a header connector for easy connection to the outside world.
Power Supply 7-18V DC
This is a PIC18F Development board with ICSP connector.
Some of the key benefits of this Development board are:
- A ZIF socket enables easy removal of the Target MCU from the development Board.
- Well Marked ICSP for connecter offers easy programming of the MCU on Board.
- Plug In Plug Out type crystal on the development board. Two jumpers J1 and J2 help you Plug In Plug Out crystal from your project. A 20 Mhz Crystal is supplied along with the kit.
- Jumper J3 allows you to use RE3 as a IO pin and VPP for the ICSP connector.
- A bridge rectifier (D2) takes care of any polarity connection at CN5. Power On LED D3 displays Power on the PCB and the Voltage Regulator IC U2 7805 ensures regulated power to the microprocessor and other devices connected to this board.
- All Port Pin Connector are capable of providing DC supply to the ADD ON cards. Please ensure that you calculate your current requirement before sourcing this supply from this PCB. No short circuit protection is provided at these outputs.
Please refer to the schematic diagram for the configuration of this board.
Schematic
For more detail: PIC 18F – 28 PIN PIC Development Board
- What type of microcontroller series does this board support?
The board is designed for the 18F-28 pin series of Microcontrollers from Microchip. - How can I easily remove the target MCU from the board?
A ZIF socket enables easy removal of the Target MCU from the development Board. - Can I change the crystal on the development board?
Yes, two jumpers J1 and J2 help you Plug In or Plug Out the crystal from your project. - What is the function of Jumper J3?
Jumper J3 allows you to use RE3 as an IO pin and VPP for the ICSP connector. - Does the board protect against incorrect power polarity?
Yes, a bridge rectifier D2 takes care of any polarity connection at CN5. - Which component ensures regulated power to the microprocessor?
The Voltage Regulator IC U2 7805 ensures regulated power to the microprocessor and other devices. - Is there short circuit protection for the port pin outputs?
No, short circuit protection is not provided at these outputs. - What is the input voltage range for the power supply?
The power supply requires 7-18V DC.
