This 4-channel DTMF relay board lets you control your props, lights and just about anything else with DTMF tones.
When ordering, choose between the following power supply options:
No power supply- provide your own.
Standard power supply- provides enough current to run the DTMF board only.
High-Current power supply (2A)- use the same supply to power the board as well as external 12VDC devices like solenoids and motors.
Note: Custom code responses are available for an additional fee