Below you can find a free, fully-functional, firmware for ATtiny2313: it is the starting point for building an IK1ZYW keypad for FT-817(ND). Please download and read through the User's Manual, that contains important hints for both builders and users.

The free firmware does:

• Direct dial
• VFO A/B toggle
• Power level cycle (5, 2.5, 1, 0.5W)
• Meter mode cycle (SWR, MOD, ALC, PWR)
• VOX on/off toggle
• Mode change
• 15 onboard memories

A PCB artwork is available (free) on request.

Right click on the following links to save these files to your computer:

• User's Manual for the free firmware (version 2010-09-16)
• Free firmware, version 2010-09-15

A generic User's Manual explains all functions that have been implemented so far and are not included in the free firmware version. Contact me if you need a firmware with specific functions. The following table shows what the keypad can do, as long as the code fits into the program memory: