RC Transponder

Updated firmware for Chronelec RC transponder. This firmware addresses multiple operational issues with manufacturer-supplied transponders, particularly for use at the DISC Velodrome.

Features

• Battery level reporting: 1=OK, 2=Low Battery, 3=Fault
• LF sensitivity is maintained during transmit sequence
• Tx dead times are eliminated
• Prolonged activation suppresses Tx only while held in loop
• Periodic (270s) wakeup/reset is eliminated - transponder will sleep indefinitely, waking only for valid activation or error condition flagged by AFE
• Pseudorandom delays are distributed in ~2ms steps from 8 to 22ms, and the back-off timer is no longer used
• Initial collisions due to concurrent wake-ups are reduced

Links

• Firmware: DISC-1.1
• Code repository: codeberg:ndf-zz/rc-transponder