insideGadgets

Motor Controller 1M1A1DA – Directional (Arduino Compatible)

A simple motor controller to control 1 motor in one direction which is compatible with the Arduino.

Features
– Separate motor power source
– Supports 1 motor turning in one direction
– Up to 1 Amp current
– BackEMF protection
– Low voltage drop
– Easy to use circuit

Specifications
Logic inputs: 1
Logic voltage: 5 Volts
Maximum logic current used: 20mA
Minimum motor input voltage: 6 Volts
Maximum motor input voltage: 12 Volts
Maximum motor input current: 1 Amp
Maximum motor input current consumed on circuit: 100mA @ 1 Amp
Operating temperature: 0 – 40C

Parts required
T1, T2 – BC637 Transistor (2)
R1 – 390 Ohm Resistor 1/4W (1)
D1 – 1N4004G Diode 400V 1A (1)
6 pin header (female or male, your choice)

Schematic

How to Use

Example code

int outPin = 2;

void setup() {
  pinMode(outPin, OUTPUT);
}

void loop() {
  digitalWrite(outPin, HIGH);
  delay(3000);
  digitalWrite(outPin, LOW);
  delay(3000);
}

PCB Component Placement

PCB Ready for printing
Version 1.1
24mm x 18mm

Motor Controller 1M1A2DA – Bi-directional (Arduino Compatible)

A simple motor controller to control 1 motor bi-directionally which is compatible with the Arduino.

(version 1.0 pictured)

Features
– Separate motor power source
– Supports 1 motor turning in both directions
– Up to 1 Amp current
– BackEMF protection
– Low voltage drop
– Easy to use circuit

Specifications
Logic inputs: 2
Logic voltage: 5 Volts
Maximum logic current used: 20mA
Minimum motor input voltage: 6 Volts
Maximum motor input voltage: 12 Volts
Maximum motor input current: 1 Amp
Maximum motor input current consumed on circuit: 100mA @ 1 Amp
Operating temperature: 0 – 40C

Parts required
T1 & T5 – MPS751G Transistor (2)
T2, T3, T4, T6, T7, T8 – BC637 Transistor (6)
R1 & R3 – 39 Ohm Resistor 1W (2)
R2 & R4 – 390 Ohm Resistor 1/4W (2)
D1, D2, D3, D4 – 1N4004G Diode 400V 1A (4)
7 pin header (female or male, your choice)

Schematic

PCB Guide

PCB Ready for printing
Version 1.1
36mm x 30mm

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.