https://on7gf.com/projects/remote-rig Control your transceiver over the internet - the cheap and easy way :-)
https://on7gf.com/projects/arduinoctcss Arduino CTCSS project : CTCSS tone encoder using the MCU registers and internal timer/counter of the Arduino
https://on7gf.com/projects/arduinoctcsssingle Arduino CTCSS project, single frequency version.
https://on7gf.com/TinyCTCSS ATtiny CTCSS Encoder
https://on7gf.com/projects/tinydimmer Tiny Dimmer project : Dimmer with zero crossing detector using an ATTiny microcontroller
https://on7gf.com/projects/remote-rig Control your rig remotely over the internet - the dirt cheap and easy way :-)