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, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 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. 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
4x4 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.
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, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 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. 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
4x4 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.
Over 180 Projects with Raspberry Pi, Pico W, Arduino, and ESP32
This bundle contains the Universal Maker Sensor Kit, which consists of many sensors, actuators, displays, and motors. It’s perfect for environmental monitoring, smart home projects, robotics, and game controllers.
The new Elektor book describes the design of many projects using the kit together with the popular Raspberry Pi, Raspberry Pi Pico W, Arduino Uno, and the ESP32 family of development boards. You can choose any of these development boards for your projects and either use the provided programs as they are, or modify these programs to suit your applications.
This bundle contains:
Book: Universal Maker Sensor Kit (normal price: €45)
Universal Maker Sensor Kit for Raspberry Pi, Pico W, Arduino, ESP32 (normal price: €70)
Book: Universal Maker Sensor Kit
Learn to use more than 35 Sensors and Actuators with C++, Python, and MicroPython
This book contains over 180 projects for all four major development boards (Arduino, Raspberry Pi, Pico W, and ESP32). Depending on the development board, projects are available in the C, Python, or MicroPython programming languages.
The project titles, brief descriptions, wiring diagrams, and full program listings together with their detailed descriptions are given in the guide.
Universal Maker Sensor Kit (for Raspberry Pi, Pico W, Arduino, ESP32)
Discover endless creativity with the Universal Maker Sensor Kit, designed for use with Raspberry Pi, Pico W, Arduino, and ESP32. This versatile kit offers compatibility across popular development platforms, including Arduino Uno R4 Minima/WiFi, Uno R3, Mega 2560, Raspberry Pi 5, 4, 3B+, 3B, Zero, Pico W, and ESP32.
Featuring over 35 sensors, actuators, and displays, it's perfect for projects ranging from environmental monitoring and smart home automation to robotics and interactive gaming. Step-by-step tutorials in C/C++, Python, and MicroPython guide beginners and experienced makers alike through 169 exciting projects.
Features
Wide Compatibility: Fully supports Arduino (Uno R3, Uno R4 Minima/WiFi, Mega 2560), Raspberry Pi (5, 4, 3B+, 3B, Zero, Pico W), and ESP32, enabling extensive flexibility across numerous development platforms. Includes instructions for building 169 projects.
Comprehensive Components: Features more than 35 sensors, actuators, and display modules suitable for diverse projects such as environmental monitoring, smart home automation, robotics, and interactive game controllers.
Detailed Tutorials: Provides clear, step-by-step tutorials covering Arduino, Raspberry Pi, Pico W, ESP32, and each included component. Tutorials are available in C/C++, Python, and MicroPython, catering effectively to both beginners and experienced makers.
Suitable for All Skill Levels: Offers structured projects designed to guide users seamlessly from beginner to advanced proficiency in electronics and programming, enhancing creativity and technical expertise.
Kit includes
Breadboard
Button Module
Capacitive Soil Moisture Module
Flame Sensor Module
Gas/Smoke Sensor Module (MQ2)
Gyroscope & Accelerometer Module (MPU6050)
Hall Sensor Module
Infrared Speed Sensor Module
IR Obstacle Avoidance Sensor Module
Joystick Module
PCF8591 ADC DAC Converter Module
Photoresistor Module
PIR Motion Module (HC-SR501)
Potentiometer Module
Pulse Oximeter and Heart Rate Sensor Module (MAX30102)
Raindrop Detection Module
Real Time Clock Module (DS1302)
Rotary Encoder Module
Temperature Sensor Module (DS18B20)
Temperature and Humidity Sensor Module (DHT11)
Temperature, Humidity & Pressure Sensor (BMP280)
Time of Flight Micro-LIDAR Distance Sensor (VL53L0X)
Touch Sensor Module
Ultrasonic Sensor Module (HC-SR04)
Vibration Sensor Module (SW-420)
Water Level Sensor Module
I²C LCD 1602
OLED Display Module (SSD1306)
RGB LED Module
Traffic Light Module
5 V Relay Module
Centrifugal Pump
L9110 Motor Driver Module
Passive Buzzer Module
Servo Motor (SG90)
TT Motor
ESP8266 Module
JDY-31 Bluetooth Module
Power Supply Module
Documentation
Online Tutorial
Book: Mastering the Arduino Uno R4
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, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 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. 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
4x4 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.
Arduino Uno R4 WiFi
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 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.
Specifications
Microcontroller
Renesas RA4M1 (ARM Cortex-M4)
USB
USB-C
Programming Port
Pins
Digital I/O Pins
14
Pins
Analog input pins
6
DAC
1
RTC
1
PWM pins
6
Communication
UART
1x
I²C
1x
SPI
1x
Qwiic I²C connector
1x
CAN
1x CAN Bus
Power
Circuit operating voltage
5 V
Input voltage (VIN)
6-24 V
DC Current per I/O Pin
8 mA
Clock speed
Main core
48 MHz
Memory
RA4M1
256 kB Flash, 32 kB RAM
LED Matrix
12 x 8 (96 red LEDs)
Dimensions
68.9 x 53.4 mm
Downloads
Datasheet
Schematics
This bundle contains:
Book: Mastering the Arduino Uno R4 (normal price: €45)
Arduino Uno R4 WiFi (normal price: €30)
Arduino-compatible, ESP32-controlled, 2-wheeled Balancing Robot
The Elektor Mini-Wheelie is an experimental autonomous self-balancing robot platform. Based on an ESP32-S3 microcontroller, the self-balancing robot is fully programmable using the Arduino environment and open-source libraries. Its wireless capabilities allow it to be controlled remotely over Wi-Fi, Bluetooth or ESP-NOW or to communicate with a user or even another robot.
An ultrasonic transducer is available for detecting obstacles. Its color display can be used for displaying cute facial expressions or, for the more down-to-earth users, cryptic debug messages.
The robot comes as a neat kit of parts that you must assemble yourself. Everything is included, even a screwdriver.
Note: The Mini-Wheelie is an educational development platform intended for learning, experimentation, and robotics development. It is not classified as a toy for children, and its features, documentation, and intended audience reflect this purpose. The product is aimed at students, educators, and developers who wish to explore robotics, programming, and hardware integration in an educational setting.
Specifications
ESP32-S3 microcontroller with Wi-Fi and Bluetooth
MPU6050 6-axis Inertial Measurement Unit (IMU)
Two independently controlled 12 V electric motors with tachometer
Ultrasonic transducer
2.9" TFT color display (320 x 240)
MicroSD card slot
Battery power monitor
3S rechargeable Li-Po battery (11.1 V/2200 mAh)
Battery charger included
Arduino-based open-source software
Dimensions (W x L x H): 23 x 8 x 13 cm
Included
1x ESP32-S3 Mainboard + MPU6050 module
1x LCD board (2.9 inch)
1x Ultrasonic sensor
1x Battery pack (2200 mAh)
1x Battery charger
1x Motor tyre kit
1x Case board
1x Acrylic board
1x Screwdriver
1x Protective strip
1x Flex cable B (8 cm)
1x Flex cable A (12 cm)
1x Flex cable C
4x Copper column A (25 mm)
4x Copper column B (55 mm)
4x Copper column C (5 mm)
2x Plastic nylon column
8x Screws A (10 mm)
24x Screws B (M3x5)
8x Nuts
24x Metal washers
2x Zip tie
1x MicroSD card (32 GB)
Downloads
Documentation
This upgraded version 2.0 (available exclusively from Elektor) contains the following improvements:
Enhanced protective earthing (PE) for furnace chassis
Extra thermal insulation layer around furnace to reduce odors
Connection to a computer, allowing curve editing on a PC
Features such as constant temperature control and timing functions
The infrared IC heater T-962 v2.0 is a microprocessor-controlled reflow oven that you can use for effectively soldering various SMD and BGA components. The whole soldering process can be completed automatically and it is very easy to use. This machine uses a powerful infrared emission and circulation of the hot air flow, so the temperature is being kept very accurate and evenly distributed.
A windowed drawer is designed to hold the work-piece, and allows safe soldering techniques and the manipulation of SMDBGA and other small electronic parts mounted on a PCB assembly. The T-962 v2.0 may be used to automatically rework solder to correct bad solder joints, remove/replace bad components and complete small engineering models or prototypes.
Features
Large infrared soldering area
Effective soldering area: 180 x 235 mm; this increases the usage range of this machine drastically and makes it an economical investment.
Choice of different soldering cycles
Parameters of eight soldering cycles are pre defined and the entire soldering process can completed automatically from Preheat, Soak and Reflow through to cool down.
Special heat up and temperature equalization with all designs
Uses up to 800 Watts of energy efficient Infrared heating and air circulation to re-flow solder.
Ergonomic design, practical and easily operated
Good build quality but at the same time light weight and a small footprint allows the T-962 v2.0 to be easily bench positioned transported or stored.
Large number of available functions
The T-962 v2.0 can solder most small parts of PCB boards, for example CHIP, SOP, PLCC, QFP, BGA etc. It is the ideal rework solution from single runs to on-demand small batch production.
Specifications
Soldering area (max)
180 x 235 mm (7.1 x 9.3")
Power (max)
800 W
Temperature range
0-280°C (32-536°F)
Heating method
Infrared
Processing time
1~8 minutes
Power supply
220 V AC/50 Hz
Display
LCD with Backlight
Control mode
8 intelligent temperature curves
Dimensions
310 x 290 x 170 mm (12.2 x 11.4 x 6.7")
Weight
6.2 kg
Included
1x T-962 v2.0 Reflow Soldering Oven (Elektor Version)
2x Fuses
1x Power cord (EU)
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
Raspberry Pi Pico as Spectrum AnalyzerFFTs on a Low-Cost Hardware Basis
±40-V Linear Voltage RegulatorAn Alternative Power Supply for the Fortissimo-100 Power Amplifier… and Others!
MCU Wireless Communication Made FlexibleEEPROM Opens Networking Prospects for Wireless MCUs
€5,000 up for grabs!Join the STM32 Wireless Innovation Design Contest
2023: An AI OdysseyGetting Started with ChatGPT’s Code Interpreter
LoRa, a Swiss Army Knife (1)The LoRa Protocol and Its Advantages
Adjustable Current Sink with Integrated Clock GeneratorTest Power Supplies, Voltage Converters and Batteries
Two New Arduino UNO R4 Boards: Minima and WiFi
Logarithmic PotentiometersThey’re Exponential!
Motor Driver Breakout BoardA BoB for a 5 A DC Motor Driver with a 3×3 mm Size
From Life’s ExperienceHazardous Electronics
Is Cellular the Lowest-Power Option for IoT?LTE-M and NB-IoT Energy Requirements in LPWAN Deployments
Wireless Communication in IoT Systems – Using Arduino MKR ModulesThe Right Board for Wi-Fi, LoRa, and Many More Standards
AC Losses in Magnetic ComponentsAvoid Hot Inductors!
Measurement for Optimal Cloud Deployment
Matter Adoption: What does it take to deploy Matter devices?
YARD Stick OneA Sub-1 GHz Wireless Test Tool
Latching RelaysPeculiar Parts, the Series
PIC O’Clock – In Touch with TimeDesigning an SDR Time Signal Receiver
Due Diligence DirectiveBusiness as Usual Will Not Do
Starting Out in Electronics……Voltage Amplification
Infrasound Recorder with the Arduino Pro MiniA Sample Project from Elektor’s “Arduino & Co.” Book
Cloud-Based Energy MeterWith ESP32 Module and PZEM-004T Voltage/Current Sensor
A Bare-Metal Programming Guide (Part 2)Accurate Timing, the UART, and Debugging
Hexadoku
Pull Down Lever For Highest Score!
This Elektor Circuit Classic from 1984 shows a playful application of CMOS 400x series logic ICs in combination with LEDs, a highly popular combination at the time. The project imitates a spinning-digit type slot machine.
The Game
To play the game, first agree on the number of rounds. Player 1 actuates the switch lever as long as desired and releases it. The LEDs then show the score which is the sum of the 50-20-10-5 digits lit up. If the Play Again! LED lights, Player 1 has another, “free” round. If not, it’s Player 2’s turn. The players keep tab of their scores, and the highest score wins.
Features
LEDs Indicate Score
Multi-Player and Play Again!
Elektor Heritage Circuit Symbols
Tried & Tested by Elektor Labs
Educational & Geeky Project
Through-Hole Parts Only
Included
Printed Circuit Board
All Components
Wooden Stand
Bill of Materials
Resistors (5%, 250 mW)
R1,R2,R3,R4 = 100kΩ
R5,R6,R7,R8,R9,R10 = 1kΩ
Capacitors
C1 = 4.7nF, 10%, 50V, 5mm
C2 = 4.7μF, 10%, 63V, axial
C3,C4 = 100nF, 10 %, 50V, ceramic X7R, 5mm
Semiconductors
LED1-LED6 = red, 5mm (T1 3/4)
IC1 = 74HC4024
IC2 = 74HC132
Miscellaneous
S1 = switch, toggle, 21mm lever, SPDT, momentary
S2 = switch, tactile, 24V, 50mA, 6x6mm
S3 = switch, slide, SPDT
IC1,IC2 = IC socket, DIP14
BT1 = PCB-mount CR2032 battery retainer clip
Desktop Stand
PCB 230098-1
Not included: BT1 = CR2032 coin cell battery
The Elektor Zener Diode Tester is essentially a constant-current source that can be switched in steps from 1 to 50 mA. It can be used to test Z-diodes up to a maximum of 54 V. Thanks to a 60-V step-up converter, the device can be powered by the usual 5 to 12 V.
The principle of this tester is straightforward. A Z-diode or other DUT (device under test, such as an LED) is biased by an adjustable current source. The voltage across the DUT can be measured with a multimeter. The voltage of most (small) Z-diodes is specified at a current of 5 mA. Depending on the application, the voltage at other currents can also be of interest. That is why six current settings are available: 1, 2, 5, 10, 20, and 50 mA. LEDs are often specified at a current of 20 mA.
What can be tested is:
Whether a Z-diode is defective (short circuit or high impedance).
Whether a Z-diode exhibits the correct Z-voltage.
How a Z-voltage changes with different currents.
What exact voltage is present at an integrated voltage reference.
Whether LEDs in a series chain differ in brightness (hence the 20 mA current).
What the current gain is for different base currents in (power) transistors.
The kit contains all parts listed in the bill of materials including PCB and enclosure.
Specifications
Supply voltage
5…12 V/2 A (USB-C)
Supply current (Itest = 50 mA)
1.1 A @ 5 V / 412 mA @ 12 V
Selectable currents
1, 2, 5, 10, 20, and 50 mA
Max. test voltage
>54 V @ Itest ≥1 mA
Max. output voltage
60 V @ Itest = 0 mA
Voltage limit at 5 V
4.5 V @ Itest = 1 mA / 5.18 V @ Itest = 50 mA
Enclosure dimensions
110 x 82 x 44 mm
PCB size
105.4 x 67.3 mm
Connections
4 mm banana sockets for multimeter
2 mm banana sockets for test clips
USB-C socket for power supply
Included
Resistors
R1 = 3.3 kΩ, 600 mW, 1%
R2 = 0.15 Ω, 1 W, 5%, LS 12.7 mm, ø 3.5 mm
R3, R8 = 180 Ω, 600 mW, 1%
R4, R6, R16 = 1 kΩ, 600 mW, 1%
R5, R19 = 47 kΩ, 600 mW, 1%
R7 = 3.9 kΩ, 1 W, 5%, LS 12.7 mm, ø 3.5 mm
R9, R10, R12 = 10 kΩ, 600 mW, 1%
R11, R13 = 100 Ω, 600 mW 1%
R14 = 249 Ω, 600 mW, 1%
R15 = 499 Ω, 600 mW, 1%
R17 = 2.49 kΩ, 250 mW, 1%
R18 = 4.99 kΩ, 250 mW, 1%
Capacitors
C1 = 470 uF / 35 V, 20%, Ir = 1.86 A, ø 12.5 mm, LS 5 mm, ESR = 0.038 Ω (Panasonic EEUTP1V471)
C2 = 1 uF / 100 V, 10%, X7R, LS 5 mm
C3 = 2.2 nF / 50 V, 10%, X7R, LS 5 mm
C4, C7 = 100 nF / 100 V, 10%, X7R, LS 5 mm
C5 = 100 uF / 100 V, 20%, ø 14 mm max., LS 5 mm
C6 = 1 nF / 100 V, 10%, X7R, LS 5 mm
Inductor
L1 = 100 uH, Irms = 2.4 A, Isat = 3.5 A, 0.09 Ω, radial, pitch 2.5/5/10 mm, ø 14 mm max. (Kemet SBC8-101-242)
Semiconductors
D1 = MUR120G, DO-41
D2, D4 = STPS3150RL, DO-201AD
D3 = Z-diode, 18 V, 1.3 W (BZX85C18)
D5 = Z-diode, 5.1 V, 0.5 W (1N5231B)
LED1 = LED in pushbutton S1
LED2 = LED, green, 3 mm
IC1 = MC34063, DIP-8
IC2 = LM4040BIZ-5.0/NOPB, TO-92 (TO-226AA-3)
IC3 = TL051CP, DIP-8
T1 = BC327.25, TO-92
T2 = STP40NF10L, TO-220
T3 = IRF9510PBF, TO-220
T4 = 2N7000, TO-92
Others
K1, K2, S1, S3 = 2-way screw terminal block, LS 3.5 mm, max. 1.5 mm²
connected to K1 = USB-C socket, 30 V/3 A, chassis mounted, wired, 9 x 16 mm
connected to K2 = Banana Connector, 2 mm, Socket, 60 VDC, Panel Mount, red (Multicomp 24.102.1)
connected to K2 = Banana Connector, 2 mm, Socket, 60 VDC, Panel Mount, black (Multicomp 24.102.2)
Test clip, red, 30 VAC/60 VDC (Hirschmann 931467101)
Test clip, black, 30 VAC/60 VDC (Hirschmann 931467100)
S1 = Pushbutton, panel mount, SPST-NO, 30 DC/100 mA, with red LED
S2 = Rotary Switch, 6 position, 2 pole, 30°, 250 V/150 mA
S3 = Toggle switch, panel mount, SPDT, solder lugs, 28 VDC
T2, T3 = Heat sink, 15°C/W, FK 214 SA-CB
Enclosure Hammond 1591XXSSBK, ABS, 110 x 82 x 44 mm
Knob for S2, round shaft 6 mm, ø 21 mm, with indicator line (Multicomp CP-LB21-6-6D)
4 x Self-tapping screw #4-1/4", carbon steel, pan head
Banana plug, red, 2 mm, 60 VDC (Multicomp 25.205.1)
Banana plug, black, 2 mm, 60 VDC (Multicomp 25.205.2)
Banana socket, black 4 mm, panel mount
Banana socket, red 4 mm, panel mount
for LED1, LED2 = Pin header, 1 x 2, vertical, pitch 2.54 mm
for LED1, LED2 = Pin socket, 1 x 2, vertical, pitch 2.54 mm
for T2, T3 = M3 screw, 10 mm, steel, pan head
2 x M3 washer, plain, steel
4 x M3 nut
for IC1, IC3 = DIP-8 socket
Wire, black, 0.25 mm² (24 AWG), stranded 14 x 0.15 mm, 1 m
Wire, red, 0.25 mm² (24 AWG), stranded 14 x 0.15 mm, 1 m
PCB 250772-1 v1.1
Links
Article
Elektor Labs
Build Your Own Vintage Radio Broadcaster
The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz.
The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range.
The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself.
Features
The board is compatible with a Hammond 1593N enclosure (not included).A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA.
The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project.
Component List
Resistors
R1, R4 = 100 Ω
R2, R3, R8 = 10 kΩ
R5, R6, R9, R10, R11 = 1 kΩ
R7 = optional (not included)
P1 = potentiometer 100 kΩ, linear
Capacitors
C1 = 22 µF 16V
C2, C4 = 10 nF
C3 = 150 pF
Miscellaneous
K1 = 4×1 pin socket
K2, K3 = 3.5 mm socket
Raspberry Pi Pico
pushbutton, angle mount
0.96" monochrome I²C OLED display
PCB 150292-1
Vision and Mission Elektor believes that innovations in electronics will lead to a better world. Elektor is a multi-faceted platform in the applied electronics industry that unites hundreds of thousands engineers, programmers and developers in a worldwide community of knowledge and expertise. Since its founding in 1960, Elektor has been dedicated...
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by Clemens Valens
Two New Arduino UNO R4 Boards: Minima and WiFi
The Arduino UNO R4 Minima and the Arduino UNO R4 WiFi have finally hit the shelves, introducing an exciting new chapter for Arduino enthusiasts and...