The PIC BOB

BOB is a nice little board that can do a lot:

• It can be a 4Axis CNC break out board to hook up to 4 PMinMO open source standard drivers to a PC or Arduino. (click the link for a picture)
• It can provide +5 volts from an unregulated power supply or battery.
• It can drive an external relay (optional LED indicator)
• It can mount 4 pushbutton switches with pull up resistors or 4 small 2 position screw terminals for easy wiring to exteral switches or sensors
• It supports 6 LEDs (power indicator, relay indicator, and 4 driven LEDs)
• It adapts the LCD1 Panel to a standard LCD44780 pinout.
• It can host a standard 44780 LCD panel and provide backlighting.
• It can host an LM335H temperature sensor.
• It can host a MAX4080 high side current sensor.
• You can stuff it with a PIC12F675, PIC16F675, PIC16F690, PIC18F14K22, or a PIC18F14K50 and a crystal or resonator.
• And the PIC can connect to any of the RLC TTL serial adapters allowing RS232, USB, and (eventually) RF communications.

And all of those can be connected in interesting ways.

For example, with the LM335H, LCD panel, and on board PIC you can make a thermometer. Add the relay driver and switches, reprogram the PIC, and it's a thermostat. With a clock crystal and some more programming the thermostate can be set for different temps at different times. With the current sensor in place of the temperature sensor, its an ammeter or a current safety shutdown device.

This spreadsheet lists the pins and shows how they are shared.

See also:

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