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The full-colour, spiral-bound SIK guidebook (included) contains step-by-step instructions with circuit diagrams and hookup tables for building each project and circuit with the included parts. Full example code is provided, new concepts and components are explained at the point of use, and troubleshooting tips offer assistance if something goes wrong. The kit does not require any soldering and is recommended for beginners ages 10 and up looking for an Arduino starter kit. For SIK version 4.1, Sparkfun took an entirely different approach to teaching embedded electronics. In previous versions of the SIK, each circuit focused on introducing a new piece of technology. With SIK v4.1, components are introduced in the context of the circuit you are building. Each circuit builds upon the last, leading up to a project that incorporates all of the components and concepts introduced throughout the guide. With new parts and a completely new strategy, even if you've used the SIK before, you're in for a brand-new experience! The SIK V4.1 includes the Redboard Qwiic, which allows you to expand into the SparkFun Qwiic ecosystem after becoming proficient with the SIK circuits. The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong. With the addition of the SparkFun RedBoard Qwiic, you will need to download a new driver install that is different from the original SparkFun RedBoard. Included SparkFun RedBoard Qwiic Arduino and Breadboard Holder SparkFun Inventor's Kit Guidebook White Solderless Breadboard Carrying Case SparkFun Mini Screwdriver 16 x 2 White-on-Black LCD (with headers) SparkFun Motor Driver (with Headers) Pair of Rubber Wheels Pair of Hobby Gearmotors Small Servo Ultrasonic Distance Sensor TMP36 Temp Sensor 6' USB Micro-B Cable Jumper Wires Photocell Tricolour LED Red, Blue, Yellow and Green LEDs Red, Blue, Yellow and Green Tactile Buttons 10K Trimpot Mini Power Switch Piezo Speaker AA Battery Holder 330 and 10K Resistors Binder Clip Dual-Lock Fastener

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With this kit you can built all the projects described in the book 'Mastering the Arduino Uno R4'. The kit comes with several LEDs, sensors, actuators, and other components. The purpose of the kit is to make a flying start with hardware and software aspects of projects designed around the Arduino Uno microcontroller system. Included 1x RFID reader module 1x DS1302 clock module 1x 5 V stepper motor 1x '2003' stepper motor drive board 5x Green LED 5x Yellow LED 5x Red LED 2x Rocker switch 1x Flame sensor 1x LM35 sensor module 1x Infrared receiver 3x Light-dependent resistors (LDRs) 1x IR remote controller 1x Breadboard 4x Pushbutton (with four caps) 1x Buzzer 1x Piezo sounder 1x Adjustable resistor (potentiometer) 1x 74HC595 shift register 1x 7-segment display 1x 4-digit 7-segment display 1x 8x8 Dot-matrix display 1x 1602 / I²C LCD module 1x DHT11 Temperature and humidity module 1x Relay module 1x Sound module Set of Dupont cables Set of Breadboard cables 1x Water sensor 1x PS2 Joystick 5x 1 k-ohm resistor 5x 10 k-ohm resistor 5x 220-ohm resistor 1x 4x4 keypad module 1x 9g Servo (25 cm) 1x RFID card 1x RGB module 1x 9 V battery DC jack Not included Mastering the Arduino Uno R4 (Book) Arduino Uno R3/R4 (Board)

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Are you tired of all the different Arduino boards, and having to choose which features you need? Wouldn't it be much simpler to have all the best features on the same board and not have to compromise? That is precisely what the people at SparkFun thought and delivered the fantastic SparkFun RedBoard Programmed with Arduino. Features ATmega328 microcontroller with Optiboot (UNO) Bootloader Input voltage: 7-15 V 0-5 V outputs with 3.3 V compatible inputs 6 Analog Inputs 14 Digital I/O Pins (6 PWM outputs) ISP Header 16 MHz Clock Spee 32 k Flash Memory R3 Shield Compatible All SMD Construction USB Programming Facilitated by the Ubiquitous FTDI FT231X Red PCB The SparkFun RedBoard combines the stability of the FTDI, the simplicity of the Uno's Optiboot bootloader, and the R3 shield compatibility of the Uno R3. RedBoard has the hardware peripherals you are used to: 6 Analog Inputs 14 Digital I/O pins (6 PWM pins) SPI UART External interrupts Downloads Drivers GitHub

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Arduino Uno is an open-source microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. You can tinker with your Uno without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again. 'Uno' means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards. Specifications Microcontroller ATmega328P Operating Voltage 5 V Input Voltage (recommended) 7-12 V Input Voltage (limit) 6-20 V Digital I/O Pins 14 (of which 6 provide PWM output) PWM Digital I/O Pins 6 Analog Input Pins 6 DC Current per I/O Pin 20 mA DC Current for 3.3 V Pin 50 mA Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM 2 KB (ATmega328P) EEPROM 1 KB (ATmega328P) Clock Speed 16 MHz LED_BUILTIN 13 Dimensions 68.6 x 53.4 mm Weight 25 g

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Learn the basics of electronics by assembling manually your Arduino Uno, become familiar with soldering by mounting every single component, and then unleash your creativity with the only kit that becomes a synth! The Arduino Make-Your-Uno kit is really the best way to learn how to solder. And when you are done, the packaging allows you to build a synth and make your music. A kit with all the components to build your very own Arduino Uno and audio synthesizer shield. The Make-Your-Uno kit comes with a complete set of instructions in a dedicated content platform. This includes video material, a 3D interactive viewer for following detailed instructions, and how to program your board once it is finished. This kit contains: Arduino Make-Your-Uno 1x Make-Your-Uno PCB 1x USB C Serial adapter Board 7x Resistors 1k Ohm 2x Resistors 10k Ohm 2x Resistors 1M Ohm 1x Diode (1N4007) 1x 16 MHz Crystal 4x Yellow LEDs 1x Green LED 1x Push-Button 1x MOSFET 1x LDO (3.3 V) 1x LDO (5 V) 3x Ceramic capacitors (22pF) 3x Electrolytic capacitors (47uF) 7x Polyester capacitors (100nF) 1x Socket for ATMega 328p 2x I/O Connectors 1x Connector header 6 pins 1x Barrel jack connector 1x ATmega 328p Microcontroller Arduino Audio Synth 1x Audio Synth PCB 1x Resistor 100k Ohm 1x Resistor 10 Ohm 1x Audio amplifier (LM386) 1x Ceramic capacitors (47nF) 1x Electrolytic capacitors (47uF) 1x Electrolytic capacitors (220uF) 1x Polyester capacitor (100nF) 4x connectors pin header 6x potentiometer 10k Ohm with plastic knobs Spare parts 2x Electrolytic capacitors (47uF) 2x Polyester capacitor (100nF) 2x Ceramic capacitors (22pF) 1x Push-Button 1x Yellow LEDs 1x Green LED Mechanical parts 5x Spacers 12 mm 11x Spacers 6 mm 5x screw nuts 2x screws 12 mm

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The Arduino Uno R4 is powered by the Renesas RA4M1 32-bit ARM Cortex-M4 processor, providing a significant boost in processing power, memory, and functionality. The WiFi version comes with an ESP32-S3 WiFi module in addition to the RA4M1, expanding creative opportunities for makers and engineers. The Uno R4 Minima is an affordable option for those who don't need the additional features. The Arduino Uno R4 runs at 48 MHz, which provides a 3x increase over the popular Uno R3. Additionally, SRAM has been upgraded from 2 kB to 32 kB, and flash memory from 32 kB to 256 kB to support more complex projects. Responding to community feedback, the USB port is now USB-C, and the maximum power supply voltage has been raised to 24 V with an enhanced thermal design. The board includes a CAN bus and an SPI port, enabling users to reduce wiring and perform parallel tasks by connecting multiple shields. A 12-bit analog DAC is also provided on the board. The Arduino Uno R4 comes in 2 versions (Minima and WiFi) and offers the following new features compared to the Uno R3: Arduino Uno R4 Minima Arduino Uno R4 WiFi USB-C connector USB-C connector RA4M1 from Renesas (Cortex-M4) RA4M1 from Renesas (Cortex-M4) HID device (emulate a mouse or a keyboard) HID device (emulate a mouse or a keyboard) Improved power section (up to 24 V through VIN) Improved power section (up to 24 V through VIN) CAN bus CAN bus DAC (12 bits) DAC (12 bits) Op amp Op amp WiFi/Bluetooth LE Fully-addressable LED matrix (12x8) Qwiic I²C connector RTC (with support for a buffer battery) Runtime errors diagnostics Model Comparison Uno R3 Uno R4 Minima Uno R4 WiFi Microcontroller Microchip ATmega328P (8-bit AVR RISC) Renesas RA4M1 (32-bit ARM Cortex-M4) Renesas RA4M1 (32-bit ARM Cortex-M4) Operating Voltage 5 V 5 V 5 V Input Voltage 6-20 V 6-24 V 6-24 V Digital I/O Pins 14 14 14 PWM Digital I/O Pins 6 6 6 Analog Input Pins 6 6 6 DC Current per I/O Pin 20 mA 8 mA 8 mA Clock Speed 16 MHz 48 Mhz 48 Mhz Flash Memory 32 KB 256 KB 256 KB SRAM 2 KB 32 KB 32 KB USB USB-B USB-C USB-C DAC (12 bit) – 1 1 SPI 1 2 2 I²C 1 2 2 CAN – 1 1 Op amp – 1 1 SWD – 1 1 RTC – – 1 Qwiic I²C connector – – 1 LED Matrix – – 12x8 (96 red LEDs) LED_BUILTIN 13 13 13 Dimensions 68.6 x 53.4 mm 68.9 x 53.4 mm 68.9 x 53.4 mm Downloads Datasheet Schematics

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Add this board to a device and you'll be able to connect it to a WiFi network, using its secure ECC608 crypto chip accelerator. The Arduino Uno WiFi is functionally the same as the Arduino Uno Rev3, but with the addition of WiFi/Bluetooth and some other enhancements. It incorporates the brand new ATmega4809 8-bit microcontroller from Microchip and has an onboard IMU (Inertial Measurement Unit) LSM6DS3TR. The Wi-Fi Module is a self-contained SoC with an integrated TCP/IP protocol stack that can provide access to a Wi-Fi network, or act as an access point. The Arduino Uno WiFi Rev2 has 14 digital input/output pins (5 that can be used as PWM outputs, 6 analog inputs), a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable or power it with an AC adapter or battery to get started. Specifications Operating Voltage 5 V Input Voltage 7 V - 12 V Digital I/O 14 Analog Input Pins 6 Analog Input Pins 6 DC Current per I/O Pin 20 mA DC Current for 3.3 V Pin 50 mA Flash Memory 48 KB SRAM 6.144 Bytes EEPROM 256 Bytes Clock Speed 16 MHz Radio Module u-blox NINA-W102 Secure Element ATECC608A Inertial Measurement Unit LSM6DS3TR LED_Builtin 25 Length 101.52 mm Width 53.3 mm Weight 37 g

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The Arduino Uno R4 is powered by the Renesas RA4M1 32-bit ARM Cortex-M4 processor, providing a significant boost in processing power, memory, and functionality. The WiFi version comes with an ESP32-S3 WiFi module in addition to the RA4M1, expanding creative opportunities for makers and engineers. The Uno R4 Minima is an affordable option for those who don't need the additional features. The Arduino Uno R4 runs at 48 MHz, which provides a 3x increase over the popular Uno R3. Additionally, SRAM has been upgraded from 2 kB to 32 kB, and flash memory from 32 kB to 256 kB to support more complex projects. Responding to community feedback, the USB port is now USB-C, and the maximum power supply voltage has been raised to 24 V with an enhanced thermal design. The board includes a CAN bus and an SPI port, enabling users to reduce wiring and perform parallel tasks by connecting multiple shields. A 12-bit analog DAC is also provided on the board. The Arduino Uno R4 comes in 2 versions (Minima and WiFi) and offers the following new features compared to the Uno R3: Arduino Uno R4 Minima Arduino Uno R4 WiFi USB-C connector USB-C connector RA4M1 from Renesas (Cortex-M4) RA4M1 from Renesas (Cortex-M4) HID device (emulate a mouse or a keyboard) HID device (emulate a mouse or a keyboard) Improved power section (up to 24 V through VIN) Improved power section (up to 24 V through VIN) CAN bus CAN bus DAC (12 bits) DAC (12 bits) Op amp Op amp WiFi/Bluetooth LE Fully-addressable LED matrix (12x8) Qwiic I²C connector RTC (with support for a buffer battery) Runtime errors diagnostics Model Comparison Uno R3 Uno R4 Minima Uno R4 WiFi Microcontroller Microchip ATmega328P (8-bit AVR RISC) Renesas RA4M1 (32-bit ARM Cortex-M4) Renesas RA4M1 (32-bit ARM Cortex-M4) Operating Voltage 5 V 5 V 5 V Input Voltage 6-20 V 6-24 V 6-24 V Digital I/O Pins 14 14 14 PWM Digital I/O Pins 6 6 6 Analog Input Pins 6 6 6 DC Current per I/O Pin 20 mA 8 mA 8 mA Clock Speed 16 MHz 48 Mhz 48 Mhz Flash Memory 32 KB 256 KB 256 KB SRAM 2 KB 32 KB 32 KB USB USB-B USB-C USB-C DAC (12 bit) – 1 1 SPI 1 2 2 I²C 1 2 2 CAN – 1 1 Op amp – 1 1 SWD – 1 1 RTC – – 1 Qwiic I²C connector – – 1 LED Matrix – – 12x8 (96 red LEDs) LED_BUILTIN 13 13 13 Dimensions 68.6 x 53.4 mm 68.9 x 53.4 mm 68.9 x 53.4 mm Downloads Datasheet Schematics

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The project book, written by well-known Elektor author Dogan Ibrahim, holds many software- and hardware-based projects especially developed for the Arduino Uno Experimenting Kit. The kit comes with the Arduino Uno R4 Minima, several LEDs, sensors, actuators, and other components. The purpose of the kit is to make a flying start with hardware and software aspects of projects designed around the Arduino Uno microcontroller system. The projects given in this guide are fully evaluated and working and fully employ all the supplied components. A block diagram, a circuit diagram, an extensive program listing, and a complete program description is given for every project in the guide. Included 1x Arduino Uno R4 Minima 1x RFID reader module 1x DS1302 clock module 1x 5 V stepper motor 1x '2003' stepper motor drive board 5x Green LED 5x Yellow LED 5x Red LED 2x Rocker switch 1x Flame sensor 1x LM35 sensor module 1x Infrared receiver 3x Light-dependent resistors (LDRs) 1x IR remote controller 1x Breadboard 4x Pushbutton (with four caps) 1x Buzzer 1x Piezo sounder 1x Adjustable resistor (potentiometer) 1x 74HC595 shift register 1x 7-segment display 1x 4-digit 7-segment display 1x 8x8 Dot-matrix display 1x 1602 / I²C LCD module 1x DHT11 Temperature and humidity module 1x Relay module 1x Sound module Set of Dupont cables Set of Breadboard cables 1x Water sensor 1x PS2 Joystick 5x 1 k-ohm resistor 5x 10 k-ohm resistor 5x 220-ohm resistor 1x 4x4 keypad module 1x 9g Servo (25 cm) 1x RFID card 1x RGB module 1x 9 V battery DC jack Project book (326 pages) Over 80 Projects in the Book Hardware Projects with LEDs Blinking LED – using the on-board LED Blinking LED – using an external LED LED flashing SOS Alternately blinking LEDs Chaser-LEDs Chasing LEDs 2 Binary counting LEDs Random flashing LEDs – Christmas lights Button controlled LED Controlling the LED flashing rate – external interrupts Reaction timer LED color wand RGB fixed colors Traffic lights Traffic lights with pedestrian crossings Using the 74HC595 shift register – binary up counter Using the 74HC595 shift register – random flashing 8 LEDs Using the 74HC595 shift register – chasing LEDs Using the 74HC595 shift register – turn ON a specified LED Using the 74HC595 shift register – turn ON specified LEDs 7-Segment LED Displays 7-Segment 1-digit LED counter 7-Segment 4-digit multiplexed LED display 7-Segment 4-digit multiplexed LED display counter – timer interrupts 7-Segment 4-digit multiplexed LED display counter – blanking leading zeroes 7-Segment 4-digit multiplexed LED display – reaction timer Timer interrupt blinking onboard LED Liquid Crystal Displays (LCDs) Display text on the LCD Scrolling text on the LCD Display custom characters on the LCD LCD based conveyor belt goods counter LCD based accurate clock using timer interrupts LCD dice Sensors Analog temperature sensor Voltmeter On/Off temperature controller Darkness reminder – using a light-dependent resistor (LDR) Tilt detection Displaying water level Water level controller Water flooding detector with buzzer Sound detection sensor – control the relay by clapping hands Flame sensor – fire detection with relay output Temperature and humidity display Generating musical tones – melody maker The RFID Reader Finding the Tag ID RFID door lock access with relay The 4x4 Keypad Display the pressed key code on the Serial Monitor Integer calculator with LCD Keypad door security lock with relay The Real-Time Clock (RTC) Module RTC with Serial Monitor RTC with LCD Temperature and humidity display with time stamping Setting and displaying the current time Periodic interrupt every 2 seconds The Joystick Reading analog values from the joystick 8x8 LED Matrix Displaying shapes Motors: Servo and Stepper Test-rotate the servo Servo sweep Joystick-controlled servo Rotate the motor clockwise and then anticlockwise The Digital to Analog Converter (DAC) Generating a square wave with 2 V amplitude Generate a sine wave Sine wave sweep frequency generator Generate sine wave whose frequency changes with potentiometer Generate a square wave with frequency of 1 kHz and amplitude of 1 V Using the EEPROM, the Human Interface Device, and PWM Keyboard control to launch Windows programs LED dimming using PWM The Arduino Uno R4 WiFi Using LED matrix 1 – creating a large + shape Creating images by setting bits Using LED matrix 2 – creating a large + shape Animation – displaying a word Controlling the Arduino Uno R4 WiFi on-board LED from a smartphone using UDP Serial Communications Receiving ambient temperature from an Arduino Uno R3 Using an Arduino Uno Simulator A simple project simulation – flashing LED Displaying text on LCD LCD seconds counter The CAN bus Arduino Uno R4 WiFi to Arduino Uno R4 Minima CAN bus communication Sending the temperature readings over the CAN bus Infrared Receiver and Remote Controller Decoding the IR remote control codes Remote relay activation/deactivation Infrared remote stepper motor control

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member so far, and this workhorse has been with us for many years. Recently, the new Arduino Uno R4 was released, based on a 48-MHz, 32-bit Cortex-M4 processor with a huge amount of SRAM and flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The new board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules, which are available as a kit from Elektor. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4×4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Additional features coming with the R3 version are: ATmega16U2 instead of 8U2 as a USB-to-Serial converter. 1.0 pinout: added SDA and SCL pins for TWI communication placed near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board and the second one is a not connected pin, that is reserved for future purposes. stronger RESET circuit. Microcontroller ATmega328P Operating Voltage 5 V Input Voltage 7 V - 12 V Digital I/O Pins 14 PWM Pins 6 Analog Input Pins 8 DC Current per I/O Pin 20 mA DC Current for 3.3 V Pin 50 mA Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM 2 KB EEPROM 1 KB Clock Speed 16 MHz LED_Builtin 13 Length 68.6 mm Width 53.4 mm Weight 25 g

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Celebrating the Arduino Uno with a miniaturized limited edition The world's favorite development board has gone mini. Everything in this version of the Arduino Uno is unique. Black and gold, finishing, elegant design and packaging, all delivered to the highest standard. A little jewel to celebrate the Arduino community and what we’ve been doing together for all these years. Each item is unique and numbered on the PCB, and includes a hand-signed letter from the founders. It’s a limited edition, so get while it’s in stock! For serious Arduino Uno lovers Arduino Uno Mini Limited Edition is a collector’s item for serious Arduino Lovers: hobbyists, students, makers, reimaginers, dreamers, hopers, fans, engineers, designers, questioners, cake-makers, problem-solvers, puzzlers, gamers, debaters, developers, entrepreneurs, architects, future-shapers, musicians, scientists... 10 million projects based on (official) Uno boards that have contributed to this incredible story. Specifications The Arduino Uno Mini Limited Edition is a microcontroller board based on the ATmega328P. It has 14 digital inputs/outputs (six of which can be used as PWM outputs), six analog inputs, a 16 MHz ceramic resonator, a USB-C connector, and a reset button. Contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable, use a power adapter, or connect a battery to get started. Microcontroller ATmega328P USB connector USB-C Built-in LED Pins 13 Digital I/O Pins 14 Analog Input Pins 6 PWM Pins 6 UART Yes I²C Yes SPI Yes Circuit operating voltage 5 V Input Voltage (limit) 6-12 V Battery connector None DC current per I/O Pin 20 mA DC current for 3.3 V Pin 50 mA Main processor ATmega328P (16 MHz) USB-serial processor ATmega16U2 (16 MHz) Memory ATmega328P 2 KB SRAM, 32 KB Flash, 1 KB EEPROM Weight 8.05 g Dimensions 26.70 x 34.20 mm Downloads Datasheet

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