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13. Output Devices

  • Individual Assignment

    • Add an output device to a your micro-controller board,
    • program it to do something

  • Group Assignment:

    • Measure the power consumption of an output device

Individual Assignment

Vibration

Using Vibration Motor

Output Device Choice

A vibration motor was chosen as an output device.

schematic diagram and components

Using the Output Device

  • Motor board was connected to another board for testing (See board from Wild Card.

Electronic Design

Schematic

Schematic

Components

  • N Mosfet (NSOT23): acts as a transistor switch
  • Capacitor (0.1uF): reduces high frequency electromagnetic wide band noise produced by the motor.
  • Diode: MOSFET protection from voltage spikes.
  • Resistor 1 (gate resistor): limits switching current.
  • Resistor 2 (pull down resistor): kepps MOSFET fully off when signal is not present.
  • Connector_2_termFABLAB = for connecting GND and VCC of the Vibration Motor.
  • ISP Connector

=== “Vibration Motor Module 01” - NDS355ANCT-ND - MOSFET N-CH 30V 1.7A SSOT3 - 0.26 - 399-4674-1-ND CAP - CERAMIC .1UF 250V X7R 1206 - 0.12 - 497-5559-1-ND DIODE - SCHOTTKY 100V SGL SOD-123 - 0.17 - 311-49.9KFRCT-ND - RES 49.9K OHM 1-4W 1% 1206 SMD - 0.01 - 311-49.9KFRCT-ND - RES 49.9K OHM 1-4W 1% 1206 SMD - 0.01 - ED1514-ND - TERMINAL BLOCK 3.5MM 2POS PCB - 0.46 - 2073-BG300-03-A-L-ACT-ND - 3W, 2.54MM PTH SOCKET, SIL, SMT, - 0.55 / S1011EC-40-ND - TH male header 0.1” (40pos) - 0.65

Components

Board

board

Machine Preparation

Traces

Traces preparation using mods.

traces-Config

Traces output view using mods.

traces-output

Outline

Outline preparation using mods.

outline-Config

Outline output view using mods.

outline-output

Production

Milling

Board Milling.

board-milling

Using Hand drill for milling holes for the connector.

board-milling

Soldering

Board Soldered.

board-soldered

Programming

Board Connected to Programmer.

board-to-programmer

Code Execution

void setup() {
  pinMode( 6 , OUTPUT);  // Must be a PWM pin
}

void loop() {

  analogWrite( 6 , 153 );  // 60% duty cycle
  delay(4000);              // play for 4s

  analogWrite( 6 , 0 );    // 0% duty cycle (off)
  delay(2000);             // wait for 2s

}

Video: Vibration Motor Testing

Files

Eagle Schematic and Board, PNG files and .rml files

https://gitlab.fabcloud.org/academany/fabacademy/2020/labs/oulu/students/yazan-barhoush/tree/master/docs/images/week13/files

Group Work

Measure the power consumption of the motor.

https://fabacademy.org/2020/labs/oulu/students/xinhui-hu/week11_Output_Device.html#group