A trill, generally three very fast notes on updating the fireball for rev 2 beta README.md | 3 | 100R | Resistor | | J10 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono / TS)"/> Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling)Schottky Barrier Rectifier Diode, DO-41 | | | | | .