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Specialized Switches There are more types of switches reacting on different external stimulations. The shock modules There are two different modules reacting on mechanical...
Solutions to the exercises This is the page to which the solutions will be uploaded. These will mainly consist of gzipped tar files which you can download and unpack...
Solutions to test 2 The sine function Here is the source code of the 3 functions of mysin. https://afnog.iotworkshop.africa/pub/Embedded Systems/SolutionsToTest...
Solutions to test 1 Linux Commands 1 ls 1 ls a names for hidden files start with the `.` 1 ls l 1 pwd 1 `.` is the current working directory`..`...
Controlling the Arduino LED via Bluetooth First I connected up the HC 06 with the Arduino. The obvious way to do this is to use the Rx and Tx pins on the Arduino and...
Setting up the Raspberry Pis We will have 2 series of Raspberry Pis to set up: The ones for the student exercises The ones for the Open Day For the Open...
Compilation tools: Editor, Compiler, Linker, Debugger, Make Exercise 1: check the student exercises Go through all the student exercises and check they work as expected...
Session 2: Basic C programming PC systems: Check if new updates have arrived and if yes install them on all machines apt update apt upgrade Install gnuplot...
Setting Up Twiki Server 1 Install apache2 and php5sudo apt get install apache2 php5 1 open a browser and type localhost to check if apache is really installed...
A serial protocol to control the movement of the robot. Setting up the HC 05 as a master Before being able to send any message from the Arduino Nano, acting as the...
Sensors with serial interface There are 2 sensors with analogue to digital conversion already implemented with the chip: the DS18B20 digital thermometer from...
Sensor Kit The sensor kit contains 37 different types of sensors and actuators. For most of these one can find example applications in either the wiringpi of the pigpio...
Interfacing Scilab to the Raspberry Pi or the Arduino Introduction Scilab is a system for open source program for numerical mathematics quite similar to Matlab even...
Rotary Encoder The rotary encoder can be considered as 2 switches which periodically open and close as you turn the encoder shaft. It can be used e.g. to change the...
The Robot Software The robot software can be divided into several parts: control of the DC motor control of the servo motor distance measurement...
The Robot The robot consists of a 3 wheel chassis where 2 wheels are driven by DC motors. It is controlled by an Arduino Uno and contains an ultrasonic distance...
Report of Ultrasonic Distance Measurement Project The Arduino is a small intelligent integrated circuit board with its brain (processor) as the ATMEGA microcontroller...
Arduino Project Report on Servo Motor This report covers all that has been done from the beginning. An Arduino is an open source electronics prototyping platform based...
The Realtime Clock Goal: The real time clock and eeprom module uses the real time clock chip which can be programmed using its I2C bus interface. The pigpio library...
The Raspberry Pi Introduction The Raspberry Pi is a small computer powerful enough to run a full blown operating system like Linux. The 3rd version of this machine...
Exercises 4: The Raspberry Pi Goal: The Raspberry Pi in contrast to the PC uses and ARM processor and peripherals are not included in the system but are connected...
Mid Semester Quiz Embedded Systems course General remarks: In the following quiz more than one answer may be correct or all of the answers may be wrong. Linux commands...
A cookbook recipe to make the Bluetooth protocol work Introduction Since you seem to have problems with point 1 3 of the development process (think and design)...
Exercises 2: C Programming Goal: We will program most of our sensor readout programs in the C programming language and programming a few simple C programs will help...
Analogue to Digital and Digital to Analogue Conversion The PCF8591 is a 4 channel analogue to digital (ADC) and 1 channel digital to analogue converter (DAC). ADC...
Integrating the Hantek 6022BE Oscilloscope into the OpenHantek Application Some information on the scope and work already done can be found at Hantek 6022BE Scope...
The MMA8452Q accelerometer Article text. Comments
The MCP4725 Digital to Analogue converter Often we need analogue signal levels or synthetically produced (program controlled) signals to drive external devices. The...
Exercises 1: Discovering Linux Goal: Today...
Linux Basics What to do after installing Ubuntu Ubuntu has become a very suitable Operating System for building embedded systems. But immediately after installing...
Measuring Light Intensity with a Photo Resistor and a Capacitor Goal: A photo resistor is a device whose resistivity decreases with increasing intensity of light...
Exercises 5: First Exercise on Hardware: LEDs Goal: Now that we know how to program the Raspberry Pi we will start to setup our first electronic circuits, albeit...
LEDs 5 out of the 37 sensors are some sort of LEDS: First we have the standard LEDs (not part of the sensor kit) As you can see from the photo LEDs...
Lecture Slides This page contains all the lecture slides: For more information please contact: uli.raich #64;gmail.com Lecture 1: Introduction Lecture 2: The...
Stepping Motors Lecture 9 Uli Raich UCC semester 2017/2018 The 27BJY 48 stepper motor and its ULN 2803 driver module A lecture on youtube There is an excellent...
Accessing the Real World Lecture 7 Uli Raich UCC semester 2017/2018 Access libraries As we have already seen, the Raspberry Pi flat cable connector and the cobbler...
Files, Pipes, Sockets Programming File I/O, creating new processes and intercommunicate between processes through pipes and network programming using sockets is probably...
Development Tools: Editor, Compiler, Linker, Debugger, Make Uli Raich First Semester 2017/2018 The development cycle The first and most important part in the development...
A bit of C programming Lecture 3 Uli Raich First Semester 2017/2018 Programming Languages To make a language a programming language it needs to implement: Assignments...
The Linux Operating System Lecture 2 Uli Raich First Semester 2017/2018 Starting the Linux System This is how the screen may loop like after some programs have been...
Course on Embedded Systems, Introduction Held at the University of Cape Coast Winter Semester 2017 Lecture 1Uli Raich (uli.raich #64;cern.ch) Introduction What should...
Analogue to Digital Conversion Analogue to Digital Conversion Lecture 12 Uli Raich UCC semester 2017/2017 Analogue to Digital Conversion Printed Circuit Boards In...
The 2 Line LCD Display and its HD44780 Controller The 2 Line LCD Display and its HD44780 Controller Uli Raich UCC semester 2017/2018 Why a simple 2 line display...
Controlling the Arduino LED via Bluetooth First I connected up the HC 06 with the Arduino. The obvious way to do this is to use the Rx and Tx pins on the Arduino and...
Exercise 11: The LCD Display Goal: The main goal of this exercise is to prepare for an exercises on Analogue to Digital Conversion (ADC). In the ADC exercise we will...
The joystick The joystick consists of 2 potentiometers which are read through two ADCs. On the Arduino we use the built in 10 bit ADCs giving us values of 0.....
Title Article text. Comments
Implementing the Arduino toolbox The program structure As you would probably expect, the program will consist of three parts a server running on the Arduino...
Exercise 15: EEPROM and Driver Access Goal: The goal of this exercise is twofold: First we will learn about an EEPROM, a Electrically Erasable Read Only Memory. These...
The I2C bus If you want to know the details on how the I2C bus works, here are the specs. If that is too much, then you might want to have a look at this bus tutorial...
The Heart Rate Sensor Goal: The heartbeat monitor consists of a simple Infrared LED combined with a photo diode measuring the IR light traversing you finger and arriving...
The Hantek 6022BE Digital Storage Oscilloscope For the course on embedded systems we need an oscilloscope to be able to see certain signals created by micro controller...
The 2 line LCD display. A 2 line LCD display can be used to display simple information. When using an ADC to read voltages it can be used to show the results implementing...
Final Feedback!!! It been a great time working with you. Ever since i took this project, i have a learn a lot especially with the Arduino devices and Bluetooth stuffs...
Exercises 3: Files, Pipes and Sockets Goal: When talking to the sensors during the next exercises we will use a Raspberry Pi to do the readout. Two different libraries...
Exercises in Python One way to develop the course in a new direction is the replacement of the C programming language by Python. You should not be mislead however...
Examination projects on Embedded Systems, Physics class I expect that you solve the problems on your own and you do not copy from your colleagues. For the examination...
The mcp4725 Digital to Analogue Converter Goal: The digital to analogue converter is a device very often used in control applications. Some HV power supplies are...
DC Motor NOTES Servo motors can be connected directly to an arduino .The servo motor is used because it is built in with a motor ,a feedback circuit and a motor drive...
Exercise List Here is a list of exercises to be solved during the course on emdedded systems. First we play on the Linux system installed on the PC, then we write...
Compiling Master Branch Of OpenHantek Getting abreast with Qt has put us through a lot of thinking this few days and truly it has not been easy. Concerning compiling...
Exercises 3: Compilation Tools: Editor, Compiler, Linker, Debugger, Make Goal: This exercise session should get you acquainted with the tools we will use for editing...
Audio Devices The kit contains 4 audio devices: 2 microphones with different size and sensitivity an active and a passive buzzer The microphones are mounted...
Analogue to Digital Conversion (ADC) Goal: Apart from the digital to analogue converter where we created analog signal levels from digital values, we have only handled...
An additional Lecture on C Programming Creating a Signal GeneratorUli RaichCourse on Embedded SystemsUCC semester end 2017 C is too abstract? I was told that you...
Installing Additional Software Quite a bit of additional software on top of the basic Ubuntu system will be needed. First I install using apt get install : emacs...
Voltmeter The 2 line LCD display controlled by a HD44780 LCD controller can be used for a number of small projects. Here we use it to display the voltage drop...
Traffic light simulator The Raspberry Pi (see Raspberry Pi Description ) is the embedded system we use for our course. It can connect to the outside world through...
The AT commands atMode: The serial line is connected to /dev/ttyUSB0you may connect to another port with ./atMode portname, e.g./dev/ttyUSB1Please enter AT command...
Stepping Motor The Raspberry Pi`s GPIO pins can also be used to generate the signals needed for the different phases of a stepping motors. Driving a stepping motor...
A meteorological station. We have 2 PCBs in our sensor collection for use in a meteorological station: The BMP180 atmospheric pressure sensor, which can also measure...
Name display It is always nice to have a demo where the visitor can become active himself. For this reason we prepared a demo in which the visitor will type his name...
The ADS1115 16 bit ADC The ADS1115 from Texas Instruments is a high precision I2C controlled Delta Sigma ADC. In addition to the ADC itself which provides 2 differential...
Programming the Robot Please first have a look at RobotKit This part written by the students: The project can be subdivided into DC motor control...
Accelerometers Introduction Accelerometers are used in many portable devices like smart phones, to detect if the device is held vertically or horizontally, in fitness...
Openhantek2 For Hantek 6022be Oscilloscope Project Description The Hantek 6022be is a very simple and very cheap digital storage oscilloscope using the USB bus for...
A little test on what you have learned in the exercises on Linux command line and basics of C programming Linux commands: 1 Which Linux command do you use to...
Preparing Ubuntu on the PC for Raspberry Pi development Exercises: Create your own user and add him to the sudo group (usermod a G sudo yourUserName).Go through...
Servo Motor Basically is a regular DC motor, with the output shaft feeding into a potentiometer, which is in turn connected to some control circuitry. The control...
Final Feedback on Bluetooth project It been a great time working with you. Ever since i took this project, i have a learn a lot especially with the Arduino devices...
Remotely controlling the Robot through Bluetooth In order to control the robot remotely some RF network connection is needed to send movement commands to the robot...
Additional Sensors The sensor kit was originally designed to be used with the Arduino, an Italian micro controller design very popular with hobbyists. The Arduino...
The Raspberry Pi and how to bring it to life Lecture 6Uli RaichUCC semester 2017/2018 A first glimpse There are several versions of Raspberry Pis available on the...
Digital to Analogue Conversion Digital to Analogue Conversion: the mcp4275 Lecture 10Uli RaichUCC semester 2017/2018 Analogue versus digital Up to now we only treated...
ISD 1820 audio module The ISD1820 is an audio module allowing to record and play back audio of ~ 10s duration. Unfortunately the chip does not allow to read out the...
The heart beat monitor This consists of an Infrared LED and a photocell. If you put your finger in between the LED and the photocell the you can observe small variations...
Digital Temperature Measurement with the DS18B20 Goal: The is a high precision temperature sensor, which already converts the measured analogue temperature into digital...
I2C Real Time Clock and serial EEPROM While our Raspberry Pi is usually connected to the network from which it can get date and time, other micro controllers (the...
Report on the first 6 weeks of the DC motor project Week 1 Installing the ubuntu 16.04 OS as dual boot alongside windows 10 Installing the Arduino software on the...
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