Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
The RISC-V Open-Source Processor Architecture16 Boards and MCUs You Should Know
An FPGA-Based Audio Player with Equalizer (1)Mixing Digital Audio with an Arduino MKR Vidor 4000
Laser Head for Pico-Based Sand ClockDrawing with Light
Enter the STM32 Edge AI Contest
A Multi-Sensor Environmental Monitoring System for PlantsWireless Measurement of Water Supply and Light Conditions
Maixduino AI-Powered Automatic DoormanFace Detection with a Camera
Embedded Electronics 2024AI Is Set to Redefine the Industry
Charge-Based In-Memory Compute at EnCharge AI
AI Inferencing at 10 Times Lower Power and 20 Fold Lower Cost
Click Board Helps Develop and Train ML Models for Vibration Analysis
The Elektor Mini-WheelieA Self-Balancing Robot Kit
MCU, I See YouMCUViewer Open-Source Multiplatform Debugging Tool
USB 2.0 IsolatorElectrically Isolated Connections for USB Devices
Intervention Before DamagePredictive Maintenance in Practice
SPoE – Electromagnetic CompatibilitySingle-Pair with Power-Over-Ethernet Through the Eyes of EMC
Color TV: A Wonder of Its TimeCreating a New World
ECG Graph MonitoringAn Implementation with Hexabitz Modules and an STM32CubeMonitor
The Battle for AI at the Edge
HaLow Hits Record 16-km Wi-Fi Distance at 900 MHz
First CHERI RISC-V Embedded Chip and Early Access Programme
Third-Generation Wildfire Detection Uses Satellite Links
From Life’s ExperienceChoice Overload
Starting Out in Electronics……Continues Filtering and Controls Tone
Quasi-Analog ClockworkA Remake of an Elektor Classic
A Modular Approach to Sensor TestingThe ESP32-S3-Based Sensor Evaluation Board
2025: An AI OdysseyThe Rise of Foundation Models and Their Role in Democratizing AI
Raspberry Pi Standalone MIDI Synthesizer (1)Preparing a Platform for Some Edge AI Experiments
Err-lectronicsCorrections, Updates, and Readers’ Letters
Universal AI RISC-V Processor Does It All — CPU, GPU, DSP, FPGA
CEO Interview: Ventiva’s Thin and Cool Tech
Dual-Core Programming with a Raspberry Pi PicoVenture Into the World of Parallel Programming
It is becoming important for microcontroller users to quickly learn and adapt to new technologies and architecture used in high performance 32-bit microcontrollers. Many manufacturers now offer 32-bit microcontrollers as general purpose processors in embedded applications.
ARM provide 32 and 64-bit processors mainly for embedded applications. These days, the majority of mobile devices including mobile phones, tablets, and GPS receivers are based on ARM technology. The low cost, low power consumption, and high performance of ARM processors makes them ideal for use in complex communication and mixed signal applications.
This book makes use of the ARM Cortex-M family of processors in easy-to-follow, practical projects. It gives a detailed introduction to the architecture of the Cortex-M family. Examples of popular hardware and software development kits are described.
The architecture of the highly popular ARM Cortex-M processor STM32F107VCT6 is described at a high level, taking into consideration its clock mechanisms, general input/output ports, interrupt sources, ADC and DAC converters, timer facilities, and more. The information provided here should act as a basis for most readers to start using and programming the STM32F107VCT6 microcontroller together with a development kit.
Furthermore, the use of the mikroC Pro for ARM integrated development environment (IDE) has been described in detail. This IDE includes everything required to create a project; namely an editor, compiler, simulator, debugger, and device programmer.
Although the book is based on the STM32F107VCT6 microcontroller, readers should not find it difficult to follow the projects using other ARM processor family members.
MDP (Mini Digital Power System) is a system of programmable linear DC power supply based on modular design, capable of connecting different modules for use as needed. MDP-XP consists of a display control module (MDP-M01) and a digital power module (MDP-P906).
Through 2.4 GHz wireless connection, it achieves multichannel free combination at the power of 300 W per channel. MDP-XP is a high cost-effective programmable linear DC power supply, featuring indicators, stability, reliability and distinct user interface comparable with professional power supplies; it also provides programmable output, timing output, sequential control, automatic compensation and other powerful functions, so as to meet diversified testing needs.
MDP-M01 Display Control Module: equipped with a 2.8-inch TFT screen, it can display the voltage-current waveform in real time, support data statistics, and automatically pair with and control six sub-modules (digital power modules), with dual thumb wheels and 90-degree scrolling user-friendly design.
MDP-P906 Digital Power Module: high efficiency linear output, 0.25 mV ripple wave, high-speed transient response, and supporting precise fine-tuning.
Specifications (MDP-M01)
Screen size
2.8' TFT
Screen resolution
240 x 320
Power
Micro USB power input, or taking power from sub-module via dedicated power cable
Input
DC 5 V/0.3 A
Other functions
Can control up to 6 sub-modulesUpgrade formware through Micro USB
Dimensions
107 x 66 x 13.6 mm
Weight
133 g
Specifications (MDP-P906)
Input
DC 4.2-30 V/14 A (Max)QC 3.0/PD2.0, 20 V/5 A (Max)
Output
0-30 V/0-10 A, 300 W (Max)
Conversion efficiency
95%
Output resolution
10 mV/2 mA, up to 1 mV/1 mA via Display Control module
Output accuracy
0.03%+5 mV0.05%+2 mV
Adjustment rate
Load adjustment rate <±0.01%Power adjustment rate <±0.01%
Ripple and noise
<250 uVrms, 3 mVpp; 2 mArms
Transient response
<4 uS
Safety protections
Input over-voltage, under-voltage, reverse connection protection, output over-current, back-flow protection and over-temperature protection
Others
Automatically shut-down and enter micro-power modeSupport USB firmware upgrade
Dimensions
112 x 66 x 20 mm
Weight
181 g
Included
MDP-M01
1x MDP-M01 Smart Digital Monitor
1x Cable (2.5 mm jack to Micro USB)
MDP-P906
1x MDP-P906 Digital Power Supply
2x Output Cable
1x User Manual
Downloads
MDP-M01 User Manual v3.4
MDP-P906 User Manual v1.1
Firmware v1.32
Love the Cytron Maker Pi Pico (SKU 19706) but can't fit it into your project? Now there is the Cytron Maker Pi Pico Mini W. Powered by the awesome Raspberry Pi Pico W, it also inherited most of the useful features from its bigger sibling such as GPIO status LEDs, WS2812B Neopixel RGB LED, passive piezo buzzer, and not forget the user button and reset button. Features Powered by Raspberry Pi Pico W Single-cell LiPo connector with overcharge / over-discharge protection circuit, rechargeable via USB. 6x Status indicator LEDs for GPIOs 1x Passive piezo buzzer (Able to play musical tone or melody) 1x Reset button 1x User programmable button 1x RGB LEDs (WS2812B Neopixel) 3x Maker Ports, compatible with Qwiic, STEMMA QT, and Grove (via conversion cable) Support Arduino IDE, CircuitPython and MicroPython Dimension: 23.12 x 53.85 mm Included 1x Maker Pi Pico Mini W (pre-soldered Raspberry Pi Pico W with preloaded CircuitPython) 3x Grove to JST-SH (Qwiic / STEMMA QT) Cable Downloads Maker Pi Pico Mini Datasheet Maker Pi Pico Mini Schematic Maker Pi Pico Mini Pinout Diagram Official Raspberry Pi Pico Page Getting started with Raspberry Pi Pico CircuitPython for Raspberry Pi Pico Raspberry Pi Pico Datasheet RP2040 Datasheet Raspberry Pi Pico Python SDK Raspberry Pi Pico C/C++ SDK
If you are looking for a simple way to learn soldering, or just want to make a small gadget that you can carry, this set is a great opportunity. Reaction game is an educational kit which teaches you how to solder, and in the end, you get to have your own small game. The goal of the game is to press the button next to the LED as soon as it turns on. With every correct answer, the game gets a bit harder – the time you have to press the button shortens. How many correct answers can you get?
It’s based on ATtiny404 microcontroller, programmed in Arduino. At its back, you’ll find CR2032 battery which makes the kit portable. There’s keychain holder as well. Soldering process is easy enough based on the mark on the PCB.
Included
1x PCB
1x ATtiny404 microcontroller
4x LEDs
4x Pushbuttons
1x Switch
4x Resistors (330 ohm)
1x CR2032 battery holder
1x Battery CR2032
1x Keychain holder
Use the right tool for the right job. These steel stakes are used to press the rivets on the PCB after holes have been drilled. They have been designed for optimum performance on the ink and ensure an electrical connection between the top and bottom layers of your PCB. Learn how to use them here.
The JOY-iT Armor Case BLOCK is a robust aluminum enclosure designed specifically for the Raspberry Pi 5. It offers excellent protection against heat and physical shocks, making it suitable for challenging environments. Its compact design ensures that it doesn't require additional space, allowing for seamless integration into existing projects.
The case includes a large heatsink to enhance cooling efficiency. Installation is straightforward, with four screws (included) securing the case to the Raspberry Pi.
Specifications
Material
CNC milled aluminum alloy
Cooling performance
Idle: ~39°CFull load: ~75°C
Special features
Large heat sink, protection against shocks and heat with the same volume as without housing
Dimensions (top side)
69 x 56 x 15,5 mm
Dimensions (bottom side)
87 x 56 x 7,5 mm
If you enjoy DIY electronics, projects, software and robots, you’ll find this book intellectually stimulating and immediately useful. With the right parts and a little guidance, you can build robot systems that suit your needs more than overpriced commercial systems can.
20 years ago, robots based on simple 8-bit processors and touch sensors were the norm. Now, it’s possible to build multi-core robots that can react to their surroundings with intelligence. Today’s robots combine sensor readings from accelerometers, gyroscopes and computer vision sensors to learn about their environments. They can respond using sophisticated control algorithms and they can process data both locally and in the cloud.
This book, which covers the theory and best practices associated with advanced robot technologies, was written to help roboticists, whether amateur hobbyist or professional, take their designs to the next level. As will be seen, building advanced applications does not require extremely costly robot technology. All that is needed is simply the knowledge of which technologies are out there and how best to use each of them.
Each chapter in this book will introduce one of these different technologies and discuss how best to use it in a robotics application. On the hardware side, we’ll cover microcontrollers, servos, and sensors, hopefully inspiring you to design your own awe-inspiring, next-generation systems. On the software side, we’ll cover programming languages, debugging, algorithms, and state machines. We’ll focus on the Arduino, the Parallax Propeller, Revolution Education PICAXE and projects I’ve with which I’ve been involved, including the TBot educational robot, the PropScope oscilloscope, the 12Blocks visual programming language, and the ViewPort development environment. In addition, we’ll serve up a comprehensive introduction to a variety of essential topics, including output (e.g. LEDs, servo motors), and communication technologies (e.g. infrared, audio), that you can use to develop systems that interact to stimuli and communicate with humans and other robots. To make these topics as accessible as possible, handy schematics, sample code and practical tips regarding building and debugging have been included.
Hanno Sander
Christchurch, New Zealand
Build Your Own RISC-V ControllerFirst Steps with the NEORV32 RISC-V Softcore for Low-Cost FPGAs
How to Use Arduino’s Serial PlotterPlotting Graphs With Arduino Is Easy
CLUE from AdafruitA Smart Solution for IoT Projects
Buffer Board for the Raspberry Pi 400Protect the I/Os Raspberry Pi RP2040 Boards Aplenty
A Handbook on DIY Electronic Security and EspionageSRAM Heated or Deep-Frozen
Component IdentificationTips & Tricks, Best Practices and Other Useful Information DIY Touchless Light Switch
Starting out in ElectronicsMatching and Transforming
What’s New in Embedded Development?Rust and Keeping IoT Deployments Updated Infographics How the Industrial and Automotive Sectors Will Benefit from 5G
Moving Coil RelaysPeculiar Parts, the series
HomeLab ToursEverything Revolves Around the Tools...
Understanding the Neurons in Neural Networks (Part 4)Embedded Neurons
Magnetic Levitation the Very Easy WayThe Third and Most Compact Version
PLC Programming with the Raspberry Pi and the OpenPLC ProjectVisualization of PLC Programs with AdvancedHMI
From Life's ExperiencePack Up and Leave
Under Your RadarMicrocontrollers You Should Know About
Monitor and Debug Over the AirA Solution for Arduino, ESP32 and Co.
Portable Temperature- and Humidity-Measuring DeviceUsing Ready-Made Modules
Lithium Battery Pack RepairSave Money + More Power!
GUIs with PythonMeme-Generator
Three Questions to Build OnWhy, What, and Who?
HexadokuThe Original Elektorized Sudoku
Pimoroni Pico LiPo is powered and programmable via USB-C and comes with 16 MB of QSPI (XiP) flash. With the Qwiic/STEMMA QT connector you can hook up a whole host of different sensors and breakouts, and a debug connector for if you want to do your programming using a SWD debugger. There is an on/off button and a BOOTSEL button, which can also be used as a user switch.Pimoroni Pico LiPo also has onboard LiPo/LiIon battery management – the inbuilt charging circuitry means charging your battery is as easy as plugging your Pimoroni Pico Lipo in via USB. Two indicator LEDs connected to the battery circuit keep you informed of on/off state and charging status and it's compatible with any of our LiPo, LiIon and high capacity LiPo batteries.Programmable with C++, MicroPython or CircuitPython, Pimoroni Pico LiPo is the perfect powerhouse for your portable projects.Features
Powered by RP2040
Dual ARM Cortex M0+ running at up to 133 Mhz
264 kB of SRAM
16 MB of QSPI flash supporting XiP
MCP73831 charger with 215 mA charging current (datasheet)
XB6096I2S battery protector (datasheet)
USB-C connector for power, programming, and data transfer
4 pin Qw-ST (Qwiic / STEMMA QT) connector
3 pin debug connector (JST-SH)
2-pole JST PH battery connector, with polarity marked on the board
Switch for basic input (doubles up as DFU select on boot)
Power button
Power, charging and user LED indicators
On-board 3V3 regulator (max regulator current output 600mA)
Input voltage range 3 - 5.5 V
Compatible with Raspberry Pi Pico add-ons
Measurements: approx 53 x 21 x 8 mm (L x W x H, including connectors)
Downloads
CircuitPython
Getting started with CircuitPython guide
Take control of your smart environment with the compact and powerful 4-inch ESP32-S3 IPS Touchscreen Control Panel. Designed for high performance and versatility, this sleek 86-box format panel integrates advanced connectivity, intuitive touch control, and real-time environmental sensing.
Features
Powerful Core Module WT32-S3-WROVER-N16R8
4-inch IPS full-screen display
Resolution: 480 x 480 pixels (RGB565 format)
Screen Driver IC: GC9503V
Touch Controller IC: FT6336U
Equipped with an SHT20 Temperature and Humidity Sensor for real-time monitoring of environmental conditions.
RS485 Interface using an automatic transceiver circuit
Built-in WiFi and Bluetooth
Applications
Smart Home Control Panels
Industrial Automation Interfaces
Environmental Monitoring Systems
IoT Projects and Custom Smart Solutions
The Raspberry Pi Pico 2 H (with Headers) is a new microcontroller board from the Raspberry Pi Foundation, based on the RP2350. It features a higher core clock speed, double the on-chip SRAM, double the on-board flash memory, more powerful Arm cores, optional RISC-V cores, new security features, and upgraded interfacing capabilities. The Raspberry Pi Pico 2 H offers a significant boost in performance and features while maintaining hardware and software compatibility with earlier members of the Raspberry Pi Pico series.
The RP2350 provides a comprehensive security architecture built around Arm TrustZone for Cortex-M. It incorporates signed boot, 8 KB of antifuse OTP for key storage, SHA-256 acceleration, a hardware TRNG, and fast glitch detectors.
The unique dual-core, dual-architecture capability of the RP2350 allows users to choose between a pair of industry-standard Arm Cortex-M33 cores and a pair of open-hardware Hazard3 RISC-V cores. Programmable in C/C++ and Python, and supported by detailed documentation, the Raspberry Pi Pico 2 is the ideal microcontroller board for both enthusiasts and professional developers.
Specifications
CPU
Dual Arm Cortex-M33 or dual RISC-V Hazard3 processors @ 150 MHz
Memory
520 KB on-chip SRAM; 4 MB on-board QSPI flash
Interfaces
26 multi-purpose GPIO pins, including 4 that can be used for AD
Peripherals
2x UART
2x SPI controllers
2x I²C controllers
24x PWM channels
1x USB 1.1 controller and PHY, with host and device support
12x PIO state machines
Input power
1.8-5.5 V DC
Dimensions
21 x 51 mm
Downloads
Datasheet (Pico 2)
Datasheet (RP2350)
EAGLE – the “Easily Applicable Graphical Layout Editor“ is a professional-grade CAD (computer aided design) software package for the design and drafting of electronic schematics as well as the design and fabrication of printed circuit boards (PCBs).
This Advanced User Guide provides the experienced EAGLE user with insight into using some of the more advanced features of EAGLE software. It is not a guide to teach the reader the basic concepts of EAGLE, nor does it discuss the ‘how to’ of the EAGLE interface and the simpler operations and commands of the software. That is the purpose of the author’s previous title EAGLE V6 Getting Started Guide also published by Elektor.
This eBook is intended as an enduring document covering the more advanced modules, commands, and functions which make up EAGLE. It is hoped that this eBook will provide a quick, succinct reference to assist with more complex applications and uses of EAGLE – an ‘EAGLE User’s Companion’, if you like.
Complementing the EAGLE Advanced User Guide, the EAGLE User Language manual is included in this eBook in unabridged form, reproduced with permission of CadSoft GmbH.
At the time of writing, the material in this eBook covers version 7 of the EAGLE software suite.
This book is all about building your own DIY home control system. It presents two innovative ways to assemble such a system: By recycling old PC hardware – possibly extending the life of an old PC, or by using Raspberry Pi. In both cases, the main system outlined in this book will consist of a computer platform, a wireless mains outlet, a controller and a USB webcam – All linked together by Linux.
By using the Raspberry Pi in conjunction with Arduino (used as an advanced I/O system board), it is possible to construct a small, compact, embedded control system offering enhanced capacity for USB integration, webcams, thermal monitoring and communication with the outside world.
The experience required to undertake the projects within this book are minimal exposure to PC hardware and software, the ability to surf the internet, burn a CD-ROM and assemble a small PCB.
This flash memory allows you to store and read data externally via the SPI interface of your microcontroller. The control of the module is exactly the same as with a conventional SD card and is therefore particularly simple. The module is especially suitable for mobile setups, where normal SD cards could slip out of the SD card slot. Specifications Special feature 3 V and 5 V operation due to the integrated voltage converter Supply voltage Vcc 3-5 V Logic level Vcc Interface SPI Memory size 512 MB Clock frequency Up to 50 MHz Dimensions 18 x 22 x 12 mm Weight 3 g
Pico Cube is a 4x4x4 LED cube HAT for Raspberry Pi Pico with 5 VDC operating voltage. Pico cube, a monochromatic Green with 64 LEDs, is a fun way to learn programming. It is designed to perform incandescent operations with low energy consumptions, robust outlook, and easy installation that make people/kids/users learn the effects of LED lights with a different pattern of colors via the combination of software and hardware i.e. Raspberry Pi Pico.
Features
Standard 40 Pins Raspberry Pi Pico Header
GPIO Based Communication
64 High-Intensity Monochromatic LEDs
Individual LED access
Each Layer Access
Specifications
Operating Voltage: 5 V
Color: Green
Communication: GPIO
LEDs: 64
Included
1x Pico Cube Base PCB
4x Layer PCB
8x Pillar PCB
2x Male Berg (1 x 20)
2x Female Berg (1 x 20)
70 LEDs
Note: Raspberry Pi Pico is not included.
Downloads
GitHub
Wiki
Raspberry Pi Pico EVB combined with the WizFi360-PAWizFi360-EVB-Pico is based on Raspberry Pi RP2040 and adds Wi-Fi connectivity using WizFi360. It is pin-compatible with Raspberry Pi Pico board and can be used for IoT Solution development.Specifications
RP2040 microcontroller with 2 MByte Flash
Dual-core cortex M0+ at up to 133 MHz
264 kByte multi-bank high performance SRAM
External Quad-SPI Flash with eXecute In Place (XIP)
Includes WizFi360-PA
Supports Hardwired Internet Protocols: TCP, UDP, WOL over UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
WiFi 2.4G, 802.11 b/g/n
Support Station / SoftAP / SoftAP+Station operation modes
Support “Data pass-through” and “AT command data transfer” mode
Support serial AT command configuration
Support TCP Server / TCP Client / UDP operating mode
Support configuration of operating channel 0 ~ 13
Support auto 20 MHz / 40 MHz bandwidth
Support WPA_PSK / WPA2_PSK encryption
Support built-in unique MAC address and user configurable
Industrial grade (operating temperature range: -40°C ~ 85°C)
CE, FCC certification
Includes 16 Mbit Flash Memory
Micro-USB B port for power and data (and for reprogramming the Flash)
40 pin 21×51 ‘DIP’ style 1mm thick PCB with 0.1' through-hole pins also with edge castellations
3-pin ARM Serial Wire Debug (SWD) port
Built-in LDO
DownloadsDocumentation
This carrier board combines a 2.4" TFT display, six addressable LEDs, onboard voltage regulator, a 6-pin IO connector, and microSD slot with the M.2 pin connector slot so that it can be used with compatible processor boards in our MicroMod ecosystem. We've also populated this carrier board with Atmel's ATtiny84 with 8kb of programmable flash. This little guy is preprogrammed to communicate with the processor over I²C to read button presses.
Features
M.2 MicroMod Connector
240 x 320 pixel, 2.4" TFT display
6 Addressable APA102 LEDs
Magnetic Buzzer
USB-C Connector
3.3 V 1 A Voltage Regulator
Qwiic Connector
Boot/Reset Buttons
RTC Backup Battery & Charge Circuit
microSD
Phillips #0 M2.5 x 3 mm screw included
This FeatherWing will make it easy to add data logging to any Feather Board you might have. You get both an I²C real-time clock (PCF8523) with 32 KHz crystal and battery backup, and a microSD socket that connects to the SPI port pins (+ extra pin for CS). Note: FeatherWing doesn't come with a microSD card. A CR1220 coin cell is required to use the RTC battery-backup capabilities. If you're not using the RTC part of the FeatherWing, a battery is not required. To talk to the microSD card socket Arduino's default SD library is recommended. Some light soldering is required to attach the headers onto the Wing. Pinouts Power pins On the bottom row, the 3.3 V (second from left) and GND (fourth from left) pin are used to power the SD card and RTC (to take a load off the coin cell battery when main power is available) RTC & I²C Pins In the top right, SDA (rightmost) and SCL (to the left of SDA) are used to talk to the RTC chip.
SCL - I²C clock pin to connect to your microcontroller's I2C clock line. This pin has a 10 kΩ pull-up resistor to 3.3 V
SDA - I²C data pin to connect to your microcontroller's I2C data line. This pin has a 10 kΩ pull-up resistor to 3.3 V There's also a breakout for INT which is the output pin from the RTC. It can be used as an interrupt output or it could also be used to generate a square wave. Note that this pin is an open drain - you must enable the internal pull-up on whatever digital pin it is connected to. SD & SPI Pins Starting from the left you've got SPI Clock (SCK) - output from feather to wing SPI Master Out Slave In (MOSI) - output from feather to wing SPI Master In Slave Out (MISO) - input from wing to feather These pins are in the same location on every Feather. They are used for communicating with the SD card. When the SD card is not inserted, these pins are completely free. MISO is tri-stated whenever the SD CS (chip select) pin is pulled high
This programmer is specifically designed for burning bootloaders (without a computer) on Arduino-compatible ATmega328 development boards.
Simply plug the programmer into the ICSP interface to re-burn the bootloader. It’s also compatible with new chips, provided the IC is functional.
Note: Burning a bootloader erases all previous chip data.
Features
Working voltage: 3.1-5.3 V
Working current: 10 mA
Compatible with Arduino Nano based boards (ATmega328)
Dimensions: 39.6 x 15.5 x 7.8 mm
This air monitor is specifically used for monitoring greenhouses. It detects:
Air temperature & Humidity
CO2 concentration
Light intensity
Then transmit the data via LoRa P2P to the LoRa receiver (on your desk in the room) so that the user can monitor the field status or have it recorded for long-term analysis.
This module monitors the greenhouse field status and sends all sensor data regularly via LoRa P2P in Jason format. This LoRa signal can be received by the Makerfabs LoRa receiver and thus displayed/recorded/analyzed on the PC. The monitoring name/data cycle can be set with a phone, so it can be easily implemented into the file.
This air monitor is powered by an internal LiPo battery charged by a solar panel and can be used for at least 1 year with the default setting (cycle 1 hour).
Features
ESP32S3 module onboard with the WiFi and Bluetooth
Ready to use: Power it on directly to use
Module name/signal interval settable easily by phone
IP68 water-proof
Temperature: -40°C~80°C, ±0.3
Humidity: 0~100% moisture
CO2: 0~1000 ppm
Light intensity: 1-65535 lx
Communication distance: Lora: >3 km
1000 mAh battery, charger IC onboard
Solar panel 6 W, ensure system works
Downloads
Manual
BH1750 Datasheet
SGP30 Datasheet
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
CaptureCountAn Object Detector and Counter on the Raspberry Pi 5
Voltage Reference With Arduino Pro MiniLinearize and Calibrate Your Analog Inputs
FPGAs for BeginnersThe Path From MCU to FPGA Programming
Update: STM32 Wireless Innovation Design Contest 2024
Bluetooth LE With MAUIControl Apps for Android & Co.
Port-Expanding Breakout BoardIncrease the Number of I/Os on Your Dev Board
AI SpecialistMachine Learning with the Jetson Nano
2024: An AI OdysseyFirst Forays Into TensorFlow
262,144 Ways to Play The Game of LifeA Reader’s Project in Brief
From Life’s ExperienceThe Chinese Dragon
Get Your (Brushed DC) Motor Running!Sample Projects from the Elektor Motor Control Development Bundle
ESP32-RS-232 AdapterA Wireless Link for Classic Test Equipment
Starting Out in Electronics……More About Opamps
ESP Library Recommendations
Piezoelectric DevicesPeculiar Parts, the Series
A Smart Object CounterImage Recognition Made Easy with Edge Impulse
Resolve Your Trickiest Embedded Development Challenges
ESP32 TerminalA Handheld Device with a Touch-Capable Display
Getting Started With the Zephyr RTOSAs Powerful as It Is Hard to Master
Award-Winning EthicsA Dialog with CTO Alexander Gerfer of Würth Elektronik eiSos on Enabling Innovation and Mindful Behavior
Err-lectronicsCorrections, Updates, and Readers’ Letters
Infographics: Embedded and AI
Square Wave Generation BenchmarksExploring ESP32, Pico, and Other Microcontrollers
The Eurorack Stripboard is the most convenient way to build a simple DIY Eurorack synthesizer module. It works like a standard protoboard, but with specific additions for the Eurorack format. You can also use the Stripboard with the 4HP Front Panel.
You can place up to 5 potentiometers or 5 jack connectors on the dedicated locations. The potentiometers can be any of 9 or 16 mm types, Alpha PKN160 for example. The Jack connectors are Cliff S6/BB mono style.
With the Eurorack power supply interface, it's extremely easy to connect either a 16-pin or a 10-pin Eurorack power connector.
The clear and detailed silkscreen labels indicate where the different voltages are located on the PCB. You can also add 2 filtering capacitors and 2 protection diodes.
How to connect jacks and potentiometers
The jack connectors are Cliff CL1384. They use the strips A, B, D and E.
A and B are switched open when the male jack connector is inserted. D and E are the contacts to the male connector.
E is Tip (the signal)
and D is Ring (usually the 0V reference, often designated as “ground”).
Note that Cliff jacks are insulated from the panel.
The potentiometers are 9 mm (2.5 mm pin pitch) or 16 mm (5 mm pin pitch). Alpha 9 mm are a good choice. They align pretty nicely with Cliff jacks on the front panel. They connect to strips B, C and D.
B is Counter Clock Wise pole.
D is Clock Wise pole.
and C is Wiper pole.
Dimensions
The PCB is 100 mm high and 50 mm wide. Thus, the depth for the Eurorack module will be 50 mm behind the panel.
Downloads
Documentation
DIY Layout Creator