This VFO is primarily aimed towards PLL CB radios with either 10.695 MHz or 7.8 MHz IF stages (PLL: uPD2824, MC145106, MB8719, MB8734, uPD858, ) which provide 10,11,12m Amateur transceiver like control (10, 100 Hz steps, 1, 10, 100 kHz steps and 1 MHz steps) + 10 memories.

Control of frequency increments from 1 MHz steps down to as small as 10 Hz resolution steps.

1 RR HF VFO V1.0 (President Madison) on air demo.

https://youtu.be/FpOJApXxaTI

2 RR HF VFO V1.0 (Uniden Pro-810e) on air demo.

https://youtu.be/wtMqg3-QKs4

3 Video showing how to setup the kit and calibrate.

https://youtu.be/rXYe4BX5_6Q

Targeted mostly at 18F range PIC MCU's by Microchip Technology Inc. https://www.microchip.com/ . Also will work with some 16F 28/40 pin count MCU's such as the PIC16F886 / PIC16F887.

A platform where to be able to develop software and prototype numerous projects that require OLED, 3 digit 7 Seg multiplexed display, rotary encoders, SPI and I2C. Optional external crystal possible along with trimmer for time base sensitive applications such a frequency counter.