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DTMF Servo

DTMF Servo kit


Drive up to 3 Servomotors using DTMF control


                  (Servomotors optional)



  Our DTMF servo driver kit can drive up to three Servo Motors under DTMF tone control. Servo motor 1 can be set to six different positions 

Servo motors 2 and 3 can be moved from one end position to the other, again under DTMF control

The video below shows the DTMF Servo kit in action

 The PCB is a high quality double sided PTH (plated through hole) 1.6mm FR4 (Fiberglass) board 64 x 38mm in size.A 4 pin programming header is also provided to allow in-circuit re-programming of the PIC

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What's in the box?

A compact Gold Plated PCB, components and programmed PIC. See the PDF for instruction details and component list.

Demo of controlling 3 Servomotors with a mobile phone


pdf_symbol[1]Download DTMF Servo kit PDF



Laden Sie DTMF Servo Bausatz PDF


pdf_symbol[1]HT9170 datasheet


The Servomotors are optional as many different types are available. Up to three can be used with this kit
and the operation can be seen in the video. The Servomotors in the video are miniature type MG90S
available below.

MG90S servo, Metal gear with one bearing

Weight: 13.4g
Dimension: 22.8*12.2*28.5mm

Stall torque: 1.8kg/cm(4.8V )2.2kg/cm(6V)
Operating speed: 0.1sec/60degree(4.8v), 0.08sec/60degree(6v)
Operating voltage: 4.8-6.0V
Dead band width: 5us

Connections Red +5V, Brown 0V, Orange control. (MG90S only – check data sheet if other servo’s used)

all servos come with an arm set.

MG90S Servomotor


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