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Introduction to Filters
Learning Lab
7 Implementations of a Latching Circuit
9 Ways to Implement Sinewave Oscillators
ATtiny85 Microprocessor
Block by Block featuring the MSP430
Lesson 1 – ADC Wake and Transmit on Threshold
Lesson 10 – Dual Output 8-Bit PWM DAC
Lesson 11 – Interfacing with I2C Sensors
Lesson 12 – USB-UART Bridge
Lesson 13 – Power Sequencing
Lesson 14 – Calendar and Tamper Detection
Lesson 2 – RGB LED Controller
Lesson 3 – Voltage Monitor with a Timestamp
Lesson 4 – Programmable Clock Source
Lesson 5 – SPI IO Expander
Lesson 6 – I2C IO Expander
Lesson 7 – External Programmable Watchdog Timer
Lesson 8 – External RTC With Backup Memory
Lesson 9 – 7-Segment LED Stopwatch
Examining Voltage Regulators
Implementing Reverse Polarity Protection
Introducing Operational Amplifiers featuring the LM741
Introduction to Flip-Flops
Opamps – A Deeper Look
The 74HC595 Shift Register
The LM334Z Constant Current Source
The LM355 Temperature Sensor
Why the 555 Still ROCKS After Half a Century
Learning Lab Advanced
A simple checklist for troubleshooting power-supply startup problems
An In-Depth look at LDO noise
Clearing the ambiguity with grounding in mixed-signal systems
Dealing with inrush currents for linear-regulators
Design of a low-cost push-pull DC-DC converter
Examining TVS’s for system-level ESD protection
Exploring a linear Li-ion battery charger
Exploring the claims of superior efficiency of synchronous converters
HACKS for high-speed circuit measurement
Implementing open-circuit protection for LED drivers
Practical Guide to PASSING EMC Compliance Tests (IEC 61000-4-x & CISPR 11)
The 5-step BLUEPRINT for a PCB layout for a step-down converter
The ULTIMATE showdown! Linear vs. switched-mode power supplies
The USB port as a source of power
Troubleshooting I2C Issues
Power Polarity Tester
Projects
12 LED Projects For You To Sink Your Teeth Into
Part 1
Part 2
Part 3
Part 4
Adjustable Linear Power Supply (PSU)
Part 1
Part 2
Building a Two-Stage Audio Amplifier
Designing a Linear PSU
Part 1
Part 2
Part 3
DIY Soldering Kits
8x8x8 LED Cube
Bluetooth Speaker
Digital Oscilloscope
DIY Signal Generator Kit
Electromagnetic Railgun
Electronic Clock
ESP01S Weather Forecast Clock
Ferris Wheel Kit
FM Radio
Game Kit
LED Audio Visualizer + Clock
LED Heart Kit
LM317 Adjustable DC Regulated PSU
Portable Light Source
Regulated PSU
Ultrasonic Range Finder
WS2812B Ring Kit
Emergency Vehicle Lights with Arduino
ESP32-Based LED Message Display
Historical-based Battle Horn
LM3915-based LED VU Meter
Motor Speed Controller
The Switched-Mode Power Supply (SMPS)
Part 1
Part 2
Tic Tac Toe
UCTRONICS Arduino Kit
Lesson 11 – 4-Digit 7-Segment Display
Lesson 12 – Controlling Servo Motor
Lesson 14 – Controlling Stepper Motor
Lesson 16 – LCD
Lesson 17 – Thermometer
Lesson 18 – Temperature Humidity Sensor
Lesson 19 – Joystick
Lesson 2 – Flowing Lights
Lesson 20 – Ultrasonic Distance Sensor
Lesson 21 – IR Receiver Remote
Lesson 22 – LED bar graph
Lesson 24 – RTC Module
Lesson 27 – Dot-Matrix Display
Lesson 28 – Frequency Meter
Lesson 4 – Controlling RGB LED with PWM
Lesson 8 – 7 Segment Display
REALLY Bright Flasher
Skills
Ahmad Sarraj - Electrical Engineer
Home
About
Projects
DIY Soldering Kits
Digital Oscilloscope
Portable Light Source
FM Radio
Bluetooth Speaker
LED Heart Kit
DIY Signal Generator Kit
8x8x8 LED Cube
Regulated PSU
Ferris Wheel Kit
LED Audio Visualizer + Clock
Electronic Clock
ESP01S Weather Forecast Clock
Game Kit
LED Heart Kit
Electromagnetic Railgun
Ultrasonic Range Finder
LM317 Adjustable DC Regulated PSU
WS2812B Ring Kit
UCTRONICS Arduino Kit
Lesson 2 – Flowing Lights
Lesson 4 – Controlling RGB LED with PWM
Lesson 8 – 7 Segment Display
Lesson 12 – Controlling Servo Motor
Lesson 11 – 4-Digit 7-Segment Display
Lesson 14 – Controlling Stepper Motor
Lesson 16 – LCD
Lesson 17 – Thermometer
Lesson 18 – Temperature Humidity Sensor
Lesson 19 – Joystick
Lesson 20 – Ultrasonic Distance Sensor
Lesson 21 – IR Receiver Remote
Lesson 22 – LED bar graph
Lesson 24 – RTC Module
Lesson 27 – Dot-Matrix Display
Lesson 28 – Frequency Meter
12 LED Projects For You To Sink Your Teeth Into
Part 1
Part 2
Part 3
Part 4
Designing a Linear PSU
Part 1
Part 2
Part 3
The Switched-Mode Power Supply (SMPS)
Part 1
Part 2
LM3915-based LED VU Meter
Building a Two-Stage Audio Amplifier
Emergency Vehicle Lights with Arduino
Historical-based Battle Horn
Motor Speed Controller
ESP32-Based LED Message Display
Tic Tac Toe
Power Polarity Tester
REALLY Bright Flasher
Learning Lab
Block by Block featuring the MSP430
Lesson 1 – ADC Wake and Transmit on Threshold
Lesson 2 – RGB LED Controller
Lesson 3 – Voltage Monitor with a Timestamp
Lesson 4 – Programmable Clock Source
Lesson 5 – SPI IO Expander
Lesson 6 – I2C IO Expander
Lesson 7 – External Programmable Watchdog Timer
Lesson 8 – External RTC With Backup Memory
Lesson 9 – 7-Segment LED Stopwatch
Lesson 10 – Dual Output 8-Bit PWM DAC
Lesson 11 – Interfacing with I2C Sensors
Lesson 12 – USB-UART Bridge
Lesson 13 – Power Sequencing
Lesson 14 – Calendar and Tamper Detection
ATtiny85 Microprocessor
Why the 555 Still ROCKS After Half a Century
Implementing Reverse Polarity Protection
Introduction to Flip-Flops
7 Implementations of a Latching Circuit
The LM334Z Constant Current Source
Introducing Operational Amplifiers featuring the LM741
Opamps – A Deeper Look
Introduction to Filters
9 Ways to Implement Sinewave Oscillators
The 74HC595 Shift Register
The LM355 Temperature Sensor
Examining Voltage Regulators
Learning Lab Advanced
Practical Guide to PASSING EMC Compliance Tests (IEC 61000-4-x & CISPR 11)
The USB port as a source of power
Troubleshooting I2C Issues
Examining TVS’s for system-level ESD protection
An In-Depth look at LDO noise
Clearing the ambiguity with grounding in mixed-signal systems
The 5-step BLUEPRINT for a PCB layout for a step-down converter
A simple checklist for troubleshooting power-supply startup problems
The ULTIMATE showdown! Linear vs. switched-mode power supplies
HACKS for high-speed circuit measurement
Design of a low-cost push-pull DC-DC converter
Implementing open-circuit protection for LED drivers
Exploring a linear Li-ion battery charger
Dealing with inrush currents for linear-regulators
Exploring the claims of superior efficiency of synchronous converters
Design of a low-cost push-pull DC-DC converter
Skills
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Contact
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Ahmad Sarraj - Electrical Engineer
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Learning Lab Advanced
This page contains learning material … but advanced