Has anyone seen published a circuit and PIC program that achieves something
similar to what is described below?

There need to be two 0-9 BCD rotary switches, one representing 1 Hz per
detent and the other 0.1Hz. These cause a PIC micro (8 pin?) to output a
50% duty cycle squarewave at the selected frequency. For example, a 6 and 3
would result in 6.3Hz.

The PIC's output is then fed to a 16 bit shift register with resistors
weighted according to sine function, or any other waveform required. This
output is to drive a 500R solenoid via a rail-to-rail (single supply) OP
amp. Power consumption is a key factor, as the circuit will run from a 9V
battery.

I am an electronics technician, but new to development, so would need to be
guided by an existing design.

Any help or pointers would be greatly appreciated.

Peter Nielsen
SCU

PS: Sorry my post was not properly tagged last time.

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