Technical understanding part 2 - Revision history

Stcd11: Added MOSFET video

2024-01-10T09:49:55Z

Added MOSFET video

2024-01-10T09:44:13Z

Fixed image

2023-11-06T10:34:55Z

2023-11-06T10:34:01Z

2023-11-06T10:33:23Z

Added relay and PLC ladder logic video

2023-04-20T13:02:33Z

Devices to produce a variety of outputs including light, sound, motion

2023-04-20T12:55:22Z

Switches and sensors, to produce signals in response to a variety of inputs

2023-04-20T12:55:01Z

2022-06-13T12:23:15Z

6.4b Demonstrate an understanding of the function of an overall system, referring to aspects, including:

2022-06-13T12:21:31Z

fixed image

@@ Line 85: / Line 85: @@
      [[File:BJT vs MOSFET.PNG|500px|thumb|center]]
      [[File:MOSFET_amp.gif|500px|thumb|center]]
 #A motor driver IC is an integrated circuit chip which is usually used to control motors in autonomous robots. Motor driver ICs act as an interface between microprocessors in robots and the motors in the robot. The most commonly used motor driver IC's are from the L293 series such as L293D, L293NE, etc.

@@ Line 62: / Line 62: @@
 #A position sensor is any device that permits position measurement. It can either be an absolute position sensor or a relative one (displacement sensor). Position sensors can be linear, angular, or multi-axis.
 #Some position sensors available today: Capacitive transducer.
-[File:position_sensor.gif|500px|thumb|center]]
+[[File:position_sensor.gif|500px|thumb|center]]
 #A Light Sensor is something that a robot can use to detect the current ambient light level - i.e. how bright/dark it is. There are a range of different types of light sensors, including 'Photoresistors', 'Photodiodes', 'Phototransistors' and 'Light dependant Resistors'.
 [[File:light_sensor.jpg|500px|thumb|center]]

@@ Line 19: / Line 19: @@
 [[File:PLC_ladder_logic.jpg|500px|thumb|center]]
 [[File:PLC_process.png|500px|thumb|center]]
-<center><youtube>v=1_YfuH_AcxQ</youtube></center>
+<center><youtube>1_YfuH_AcxQ</youtube></center>
 <center><youtube>2yY3b350mhw</youtube></center>

@@ Line 18: / Line 18: @@
 #An alternative to the PIC is a Programmable Logic Controller (PLC). A programmable logic controller (PLC), or programmable controller is an industrial digital computer which has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis.
 [[File:PLC_ladder_logic.jpg|500px|thumb|center]]
- [File:PLC_process.png|500px|thumb|center]]
+[[File:PLC_process.png|500px|thumb|center]]
 <center><youtube>v=1_YfuH_AcxQ</youtube></center>
 <center><youtube>2yY3b350mhw</youtube></center>

@@ Line 19: / Line 19: @@
 [[File:PLC_ladder_logic.jpg|500px|thumb|center]]
   [File:PLC_process.png|500px|thumb|center]]
 ===Signal amplification===

@@ Line 33: / Line 33: @@
 ===Devices to produce a variety of outputs including light, sound, motion===
-#An output device is any device used to send data from a microcontroller to another device. Most microcontroller data output that is meant for humans is in the form of audio, visual or movement. Thus, most output devices used by humans are in these categories. Examples include LEDs, speakers, buzzers, DC motors and stepper motors.
+*An output device is any device used to send data from a microcontroller to another device. Most microcontroller data output that is meant for humans is in the form of audio, visual or movement. Thus, most output devices used by humans are in these categories. Examples include LEDs, speakers, buzzers, DC motors and stepper motors.
 [[File:output_bulb_buzzer.jpg|500px|thumb|center]]
 [[File:output_solenoid_relay.png|500px|thumb|center]]
 [[File:output_motor_stepper.png|500px|thumb|center]]
 ==6.4b Demonstrate an understanding of the function of an overall system, referring to aspects==

@@ Line 9: / Line 9: @@
 #A sensor is a device, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.
 [[File:Types-of-Sensors.jpg|500px|thumb|center]]
-##Programmable control devices.
 [[File:PIC_picture.jpg|500px|thumb|center]]
 #A microprocessor is a multi-function programmable device. Microprocessors enable computers to work, and they can also be used to control many types of electronic system.

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 * MOSFET (metal-oxide semiconductor field-effect transistor, pronounced MAWS-feht ) is a special type of field-effect transistor ( FET ) that works by electronically varying the width of a channel along which charge carriers ( electron s or hole s) flow. The wider the channel, the better the device conducts. The charge carriers enter the channel at the source , and exit via the drain . The width of the channel is controlled by the voltage on an electrode called the gate , which is located physically between the source and the drain and is insulated from the channel by an extremely thin layer of metal oxide.
-     [[File:WhatareMOSFETs.png|500px|thumb|center]]
+     [[File:What are MOSFETs.PNG|500px|thumb|center]]
-     [[File:BJTvsMOSFET.png|500px|thumb|center]]
+     [[File:BJT vs MOSFET.PNG|500px|thumb|center]]
      [[File:MOSFET_amp.gif|500px|thumb|center]]