The oneTesla coil can be connected to a MIDI instrument, such as a keyboard or computer MIDI synthesizer. The way to do this is through the interrupter.
The interrupter is responsible for two things. First, it chops up the MIDI signal and transforms it into pulses that control the Tesla coil's on and off times. Second, it turns the electronic MIDI signal into an optical signal that is transmitted via an optical fiber to the Tesla coil control board. Optical isolation ensures that the control signal is unaffected by electronic noise from the coil.
This interrupter is uniquely polyphonic. That means that it plays up to two notes at once! You can also control its pulse width, and subsequently the power throughput of the coil, using a knob. This eliminates the need for a bulky variac to control the coil's output power.
The interrupter comes with an ATMega328 flashed with custom firmware, a 9V, a laser cut chassis with on/off switch and power control knob, a printed circuit board, and all included electronic components. There is also the option to use a 9-24V power supply (not included) and omit the battery.
The interrupter's firmware and its guide can be found on our downloads page.
- Microcontroller: ATMega328@16MHz
- Output: IF-E96 Plastic Fiber Transmitter
- Input Power: 9V battery, or 2.5x5.5mm adapter, 9-24V
- Input: MIDI, up to two independent channels
- Pulse duration: 0-30 uS
Note: we don't guarantee that your MIDI device will be supported.