Version 1.10

Added 19200 bps

ATtiny25 (RTS-only)

Version 1.00b

• ATtiny25 chip
• Sense RTS line only (enough for most mouse drivers)
• Controller's pin 1 functional as normal RESET (ISP programming still available)
• R4 must not be installed
• R1 is recommended to install

ATtiny25 (RTS+DTR)

Version 1.00b

• ATtiny25 chip
• Sense RTS and DTR lines
• Controller's pin 1 functional as GPIO (only HV serial programming will available after fuses flashing)
• R4 must be installed
• R1 must not be installed