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LCD 244Hz TO 4MHz PIC16F1827 FREQUENCY GENERATOR
PIC generates 244-8,000,000 Hz by dividing the 32 MHz from crystal oscillator and PLL. The pushbuttons set the division from 0 to 255 holding the button advance the frequency every second.. The high frequency output at pin 2 is 4000000 / division , the low frequency output at pin 3 is 62500 / division. Division is by integer so not all frequencies can be set, for example the High Frequency output can be 4, 2, 1.333, 1 MHz etc.
The LCD of 16x2 display the High and Low Frequencies. The LCD module has to be HD44780 compatible.
The outputs are generated by using TMR2 and CCP3, TMR4 and CCP4 in PWM mode.
 
LCD 244Hz TO 8MHz ARDUINO FREQUENCY GENERATOR
Arduino Uno or Nano generates 244-8,000,000 Hz by dividing the 16 MHz crystal oscillator. The pushbuttons set the division from 0 to 255 holding the button advance the frequency every second.. The high frequency output at pin 9 is 8000000 / (division + 1) , the low frequency output at pin 11 is 62500 / (division + 1). Division is by integer so not all frequencies can be set, for example the High Frequency output can be 8, 4, 2.666, 2, 1.6, 1.333 MHz etc.
The LCD of 16x2 display the High and Low Frequencies. The LCD module has to be HD44780 compatible.
The software is for Arduino with ATMEGA328. The outputs are generated by using Timer2 and Timer1 in CTC mode.
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