Search results for "android e b"
Elektor Digital C# Programming for Windows and Android (E-BOOK)
This e-book (pdf), a software-only follow up to the best-selling Elektor Visual Studio C# range of books, is aimed at Engineers, Scientists and Enthusiasts who want to learn about the C# language and development environment.It covers steps from installation, the .NET framework and object oriented programming, through to more advanced concepts including database applications, threading and multi-tasking, internet/network communications and writing DLLs. The DirectX chapters also include video capture. The e-book concludes with several chapters on writing Android applications in C# using the Xamarin add-on.This e-book is based on the Visual Studio 2015 development environment and latest C# additions including WPF applications, LINQ queries, Charts and new commands such as await and async. The latest Visual Studio debugging features (PerfTips, Diagnostic Tool window and IntellTrace) are covered. Finally, the Android chapters include GPS, E-mail and SMS applications.Additionally, the e-book provides free on-line access to extensive, well-documented examples — in a try for yourself style — together with links to the author’s videos, guiding you through the necessary steps to get the expected results.
€ 33,95
Members € 27,16
Elektor Digital ESP8266 and MicroPython (E-BOOK)
Recently, the development of a tiny chip called the ESP8266 has made it possible to interface any type of microcontroller to a Wi-Fi AP. The ESP8266 is a low-cost tiny Wi-Fi chip having fully built-in TCP/IP stack and a 32-bit microcontroller unit. This chip, produced by Shanghai based Chinese manufacturer Espressif System, is IEEE 802.11 b/g/n Wi-Fi compatible with on-chip program and data memory, and general purpose input-output ports. Several manufacturers have incorporated the ESP8266 chip in their hardware products (e.g. ESP-xx, NodeMCU etc) and offer these products as a means of connecting a microcontroller system such as the Android, PIC microcontroller or others to a Wi-Fi. The ESP8266 is a low-power chip and costs only a few Dollars.ESP8266 and MicroPython – Coding Cool Stuff is an introduction to the ESP8266 chip and describes the features of this chip and shows how various firmware and programming languages such as the MicroPython can be uploaded to the chip. The main aim of the book is to teach the readers how to use the MicroPython programming language on ESP8266 based hardware, especially on the NodeMCU.Several interesting and useful projects are given in the e-book (pdf) to show how to use the MicroPython in NodeMCU type ESP8266 hardware: Project “What shall I wear today?”: You will be developing a weather information system using a NodeMCU development board together with a Text-to-Speech processor module. Project “The Temperature and Humidity on the Cloud”: You will be developing a system that will get the ambient temperature and humidity using a sensor and then store this data on the cloud so that it can be accessed from anywhere. Project “Remote Web Based Control”: You will be developing a system that will remotely control two LEDs connected to a NodeMCU development board using an HTTP Web Server application.
€ 22,95
Members € 18,36
Elektor Digital Raspberry Pi 3 - Basic to Advanced Projects (E-book)
This ebook is about the Raspberry Pi 3 computer and its use in various control and monitoring applications. The book explains in simple terms and with tested and working example projects, how to configure the Raspberry Pi 3 computer, how to install and use the Linux operating system, and how to write hardware based applications programs using the Python programming language. The nice feature of this book is that it covers many Raspberry Pi 3 based hardware projects using the latest hardware modules such as the Sense HAT, Swiss Pi, MotoPi, Camera module, and many other state of the art analog and digital sensors. An important feature of the Raspberry Pi 3 is that it contains on-board Bluetooth and Wi-Fi modules. Example projects are given in the book on using the Wi-Fi and the Bluetooth modules to show how real-data can be sent to the Cloud using the Wi-Fi module, and also how to communicate with an Android based mobile phone using the Bluetooth module. The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and for hobbyists. It is recommended that the book should be followed in the given Chapter order. Over 30 projects are given in the book. All the projects in the book are based on the Python programming language and they have been fully tested. Full program listings of every project are given in the book with comments and full descriptions. Experienced programmers should find it easy to modify and update the programs to suit their needs. The following sub-headings are given for each project to make it as easy as possible for the readers to follow the projects: Project title Description Aim of the project Raspberry Pi type Block diagram Circuit diagram Program listing
€ 26,95
Members € 21,56
Elektor Digital Get Started with the SensorTile.box (E-book)
STmicroelectronics’ wireless IoT & wearable sensor development kit ‘SensorTile.box’ is a portable multi-sensor circuit board housed in a plastic box and developed by STMicroelectronics. It is equipped with a high-performance 32-bit ARM Cortex-M4 processor with DSP and FPU, and various sensor modules, such as accelerometer, gyroscope, temperature sensor, humidity sensor, atmospheric pressure sensor, microphone, and so on. SensorTile.box is ready to use with wireless IoT and Bluetooth connectivity that can easily be used with an iOS or Android compatible smartphone, regardless of the level of expertise of the users. SensorTile.box is shipped with a long-life battery and all the user has to do is connect the battery to the circuit to start using the box. The SensorTile.box can be operated in three modes: Basic mode, Expert mode, and Pro mode. Basic mode is the easiest way of using the box since it is pre-loaded with demo apps and all the user has to do is choose the required apps and display or plot the measured data on a smartphone using an app called STE BLE Sensor. In Expert mode users can develop simple apps using a graphical wizard provided with the STE BLE Sensor. Pro mode is the most complex mode allowing users to develop programs and upload them to the SensorTile.box. This book is an introduction to the SensorTile.box and includes the following: Brief specifications of the SensorTile.box; description of how to install the STE BLE Sensor app on an iOS or Android compatible smartphone required to communicate with the box. Operation of the SensorTile.box in Basic mode is described in detail by going through all of the pre-loaded demo apps, explaining how to run these apps through a smartphone. An introduction to the Expert mode with many example apps developed and explained in detail enabling users to develop their own apps in this mode. Again, the STE BLE Sensor app is used on the smartphone to communicate with the SensorTile.box and to run the developed apps. The book then describes in detail how to upload the sensor data to the cloud. This is an important topic since it allows the sensor measurements to be accessed from anywhere with an Internet connection, at any time. Finally, Pro mode is described in detail where more experienced people can use the SensorTile.box to develop, debug, and test their own apps using the STM32 open development environment (STM32 ODE). The Chapter explains how to upload the developed firmware to the SensorTile.box using several methods. Additionally, the installation and use of the Unicleo-GUI package is described with reference to the SensorTile.box. This PC software package enables all of the SensorTile.box sensor measurements to be displayed or plotted in real time on the PC.
€ 24,95
Members € 19,96
Elektor Digital ESP32 & ESP8266 Compilation (EN) | E-book
The ESP8266 from Espressif is a Wi-Fi microchip with full TCP/IP stack and microcontroller capability. It has made waves in the maker community with its low price. But many developers were unhappy with ESP8266's high power consumption. The ESP32, equipped with a ULP (Ultra Low Power) coprocessor, offers a remedy for this.This E-Book features a number of projects featuring ESP32 & ESP8266 as well as an interview with the CEO of Espressif Teo Swee Ann. Articles ESP32 for Use in Industry 4.0 Equipment Scrolling Message Display, 512 LEDs controlled over Wi-Fi via an ESP-12F The Connected Greenhouse IoT demonstration project using MQTT and Node-RED VFD-tube Clock with ESP32 with an accurate Internet-derived time ESP32 Low Power DCF77 Emulator with ESP8266 ESP8266 on the Elektor Android I/O Board The Reason Behind the Hugely Popular ESP8266? Wi-Fi Desktop Thermostat Timers for the Wi-Fi Desktop Thermostat PlatformIO, the Universal Programming Tool Weather Display, Visualize current weather data on an LC display GoNotify, a Flexible IoT Sensor Interface ESP32 for Power Users USB Programming Adaptor for ESP8266 Getting started with ESP32 and the Arduino IDE MicroPython, Python for small systems RGBDigit Clock WLAN for Microcontrollers Return of the Wi-Fi Controller Board Compact and Self-contained WLAN
€ 7,50
Members € 6,00
Elektor Digital MIT App Inventor Projects (E-book)
50+ Android Apps with Raspberry Pi, ESP32 and Arduino This book is about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be in either standalone mode or use an external processor. In standalone mode, the developed application runs only on the mobile device (e.g. Android). In external processor-based applications, the mobile device communicates with an external microcontroller-based processor, such as Raspberry Pi, Arduino, ESP8266, ESP32, etc. In this book, many tested and fully working projects are given both in standalone mode and using an external processor. Full design steps, block programs, circuit diagrams, QR codes and full program listings are given for all projects. The projects developed in this book include: Using the text-to-speech component Intonating a received SMS message Sending SMS messages Making telephone calls using a contacts list Using the GPS and Pin-pointing our location on a map Speech recognition and speech translation to another language Controlling multiple relays by speech commands Projects for the Raspberry Pi, ESP32 and Arduino using Bluetooth and Wi-Fi MIT APP Inventor and Node-RED projects for the Raspberry Pi The book is unique in that it is currently the only book that teaches how to develop projects using Wi-Fi and Node-RED with MIT App Inventor. The book is aimed at students, hobbyists, and anyone interested in developing apps for mobile devices. All projects presented in this book have been developed using the MIT App Inventor visual programming language. There is no need to write any text-based programs. All projects are compatible with Android-based mobile devices. Full program listings for all projects as well as detailed program descriptions are given in the book. Users should be able to use the projects as they are presented, modifying them to suit their own needs.
€ 29,95
Members € 23,96
PeakTech PeakTech 3440 Multimeter with Bluetooth & Datalogger
This innovative graphical multimeter convinces through its modern design and the high variety of measurement functions, as well as the consistent design only to the latest technical achievements.The backlit TFT color display shows the various menus of the graphical user interface, the measurement points of the data logger recording, and the measured values of the multimeter function with its reliable, high precision 4 5/6-digits LCD display.The resulting measurement data can be displayed and saved via Bluetooth by an App (iOS / Android) on your smart-phone. In addition, the new PeakTech multimeter app has the ability to forward the data directly from the mobile phone by e-mail or to save it as a data table.Due to the extensive measurement capabilities and intuitive operation mode, this device is well suited for each professional repairman, electronic engineers or technicians who are interested in a sturdy, highly precise and technically powerful multimeter. 4 5/6-digits measurement value display (max. 49999) 5.6 cm (2.2') TFT color display with backlighting Graphical user interface with menu control Data logger function with graph Internal memory for 10.000 measured values (Datalogger 20.000) Bluetooth interface for data transfer to a smart-phone via Android or iOS App App for smart-phones to download Lithium-Polymer Battery - Runtime ~ 8h Safety: TÜV/GS, EN 61010-1; CAT III 1000 V / CAT IV 600 V Accessories: Carrying case, Test leads, K-type thermocouple, 7.4 V Li-Ion battery, Battery charge adapter and manual Specifications DCV 500mV / 5 / 50 / 500 / 1000 V +/-0,05% + 5 dgt. ACV 500mV / 5 / 50 / 500 / 1000 V +/-0,5% + 5 dgt. Frequency range 50 Hz … 20 kHz ACV+DCV 5 / 50 / 500 / 1000 V +/-1,2% + 20 dgt. Frequency range 50 Hz … 5 kHz DCA 500 / 5000µA / 50 / 500 mA / 10 A +/-0,2% + 5 dgt. ACA 500 / 5000µA / 50 / 500 mA / 10 A +/-0,8% + 5 dgt. Frequency range 50 Hz … 5 kHz Ohm 500 Ω / 5 / 50 / 500 kΩ / 5 / 50 MΩ +/-0,2% + 5 dgt Capacitance 5 / 50 / 500 nF / 5 / 50 / 500 µF / 10 mF +/-1,0% + 5 dgt. Frequency 80 Hz … 10 MHz +/-0,01% + 5 dgt. Temperature -100.0 °C … +1350 °C +/-1,0% + 3 °C Operating Voltage 7.4 V-Li-Ion Battery Dimensions (WxHxD) 80 x 175 x 50 mm Weight 400 g
€ 219,00
Members € 197,10
SDRplay SDRplay RSP1A - 14-bit SDR Receiver (1 kHz to 2 GHz)
The SDRplay RSP1A is a popular, powerful wideband full featured 14-bit entry-level SDR receiver – and perfect as an all round general coverage communications receiver plus much much more.The RSP1A covers the complete radio spectrum from 1 kHz (VLF) to 2 GHz (Microwaves) with up to a massive 10 MHz visible bandwidth and the companion SDRuno software has all the popular ham bands and shortwave broadcast bands as “presets” for instant set-up.Features Covers all frequencies from 1 kHz through VLF, LF, MW, HF, VHF, UHF and L-band to 2 GHz, with no gaps Receive, monitor and record up to 10 MHz of spectrum at a time Free use of windows-based SDRuno software which provides an ever-increasing feature-set Strong and growing software support network Calibrated S meter/ RF power and SNR measurement with SDRuno (including datalogging to .CSV file capability) Documented API provided to allow demodulator or application development on multiple platforms Excellent dynamic range for challenging reception conditions Works with popular 3rd party SDR software (including HDSDR, SDR Console and Cubic SDR) ExtIO based plugin available Software upgradeable for future standards Strong and growing software support network API provided to allow demodulator or application development Multiplatform driver and API support including Windows, Linux, Mac, Android and Raspberry Pi 3/4 Up to 16 individual receivers in any 10 MHz slice of spectrum using SDRuno Calibrated S meter and power measurements with SDRuno Stand-alone windows-based spectrum analyser software available (with sweep, sample and hold features) Ideal for monitoring of ISM/ IoT/ Telemetry bands <2 GHz Ideal for portable operation Specifications Frequency Range 1 kHz – 2 GHz Antenna Connector SMA Antenna Impedance 50 Ohms Current Consumption (Typical) 185 mA (excl. Bias-T) USB Connector USB Type B Maximum Input Power +0 dBm Continuous+10 dBm Short Duration ADC Sample Rates 2-10.66 MSPS ADC Number of Bits 14 bit 2-6.048 MSPS12 bit 6.048-8.064 MSPS10 bit 8.064-9.216 MSPS8 bit >9.216 MSPS Bias-T 4.7 V100 mA guaranteed Reference 0.5ppm 24 MHz TCXO.Frequency error trimmable to 0.01ppm in field. Operating Temperature Range -10˚C to +60˚C Dimensions 98 x 88 x 34 mm Weight 110 g Downloads Datasheet Detailed Technical Information Software RSP1A vs RSPdx vs RSPduo RSP1A RSPdx RSPduo Continuous coverage from 1 kHz to 2 GHz ✓ ✓ ✓ Up to 10 Mhz visible bandwidth ✓ ✓ ✓ 14-bit ADC silicon technology plus multiple high-performance input filters ✓ ✓ ✓ Software selectable AM/FM & DAB broadcast band notch filters ✓ ✓ ✓ 4.7 V Bias-T for powering external remote antenna amplifier ✓ ✓ ✓ Powers over the USB cable with a simple type B socket ✓ ✓ ✓ 50Ω SMA antenna input(s) for 1 kHz to 2 GHz operation (software selectable) 1 2 2 Additional software selectable Hi-Z input for up to 30 Mhz operation ✓ Additional software selectable 50Ω BNC input for up to 200 MHz operation ✓ Additional LF/VLF filter for below 500 kHz ✓ 24 MHz reference clock input (+ output on RSPduo) ✓ ✓ Dual tuners enabling reception on 2 totally independent 2 MHz ranges ✓ Dual tuners enabling diversity reception using SDRuno ✓ Robust and strong plastic case (with internal RF shielding layer) ✓ Rugged black painted steel case ✓ ✓ Overall performance below 2 MHz for MW and LF + ++ + Multiple simultaneous applications + + ++ Performance in challenging fading conditions (*using diversity tuning) + + *++
€ 139,95
Members € 125,96
LILYGO LILYGO T-Journal ESP32 Camera Module Development Board (Normal Lens)
The T-Journal is a cheap ESP32 Camera Development Board that features an OV2640 camera, an antenna, a 0.91-inch OLED display, some exposed GPIOs, and a micro-USB interface. It makes it easy and quick to upload code to the board. Specifications Chipset Expressif-ESP32-PCIO-D4 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash/SRAM, up to 4x 16 MB SRAM 520 kB SRAM KEY reset, IO32 Display 0.91" SSD1306 Power indicator lamp red USB to TTL CP2104 Camera OV2640, 2 Megapixel Steering engine analog servo On-board clock 40 MHz crystal oscillator Working voltage 2.3-3.6 V Working current about 160 mA Working temperature range -40℃ ~ +85℃ Size 64.57 x 23.98 mm Power Supply USB 5 V/1 A Charging current 1 A Battery 3.7 V lithium battery WiFi Standard FCC/CE/TELEC/KCC/SRRC/NCC (ESP32-chip) Protocol 802.11 b/g/n/e/i (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4 μS Protection interval Frequency range 2.4 GHz~2.5 GHz (2400 M ~ 2483.5 M) Transmit Power 22 dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -98 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD & SBC audio frequency Software Wifi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA(Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x ESP32 Camera Module (Normal Lens) 1x Wi-Fi Antenna 1x Power Line Downloads Camera library for Arduino
€ 29,95
Members € 26,96
LILYGO LILYGO T-Journal ESP32 Camera Module Development Board (Fish-eye Lens)
The T-Journal is a cheap ESP32 Camera Development Board that features an OV2640 camera, an antenna, a 0.91 inch OLED display, some exposed GPIOs, and a micro-USB interface. It makes it easy and quick to upload code to the board. Specifications Chipset Expressif-ESP32-PCIO-D4 240 MHz Xtensa single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash/SRAM, up to 4x 16 MB SRAM 520 kB SRAM KEY reset, IO32 Display 0.91" SSD1306 Power indicator lamp red USB to TTL CP2104 Camera OV2640, 2 Megapixel Steering engine analog servo On-board clock 40 MHz crystal oscillator Working voltage 2.3-3.6 V Working current about 160 mA Working temperature range -40℃ ~ +85℃ Size 64.57 x 23.98 mm Power Supply USB 5 V/1 A Charging current 1 A Battery 3.7 V lithium battery WiFi Standard FCC/CE/TELEC/KCC/SRRC/NCC (ESP32-chip) Protocol 802.11 b/g/n/e/i (802.11n, speed up to 150 Mbps) A-MPDU and A-MSDU polymerization, support 0.4 μS Protection interval Frequency range 2.4 GHz~2.5 GHz (2400 M ~ 2483.5 M) Transmit Power 22 dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -98 dBm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH Audio frequency CVSD & SBC audio frequency Software Wifi Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA (Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, Android/iOS app OS FreeRTOS Included 1x ESP32 Camera Module (Fish-eye Lens) 1x Wi-Fi Antenna 1x Power Line Downloads Camera library for Arduino
€ 32,95
Members € 29,66
Elektor Digital Elektor May/June 2023 (PDF)
Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Knowledge for All! Super Servo TesterTest Up to Four Servos Stand-Alone or In-System Analog Signals and MicrocontrollersADCs, DACs, Current Measurement, and More embedded world 2023 Sub-Nyquist Sampling in PracticeReliably Capturing Higher Frequencies Using Subsampling Android Smartphone Here, ESP32 There?Practical Pproject Using the Android Wi-Fi API Active 1-kHz Filter for Distortion MeasurementBetter Measurements Through Optimization of the Measurement Signal Starting Out in Electronics......Multivibrating Cheerfully Further! Err-lectronicsCorrections, Updates and Readers’ Letters The New I3C ProtocolA Worthy Successor to I²C, or Just More Hot Air? BlueRC: IR Remote Control with Smartphone and ESP32Adaptive and Universal Microcontroller Documentation Explained (Part 2)Registers and Block Diagrams Automating Test and MeasurementProgramming Test Equipment to Do What You Want Infographics: Test and Measurement Overvoltage Protection for Safe OperationTransient Protection for Non-Isolated DC/DC Power Modules Wiha Measuring EquipmentReliable Electrical Testers and Meters Automating Testing and Collaborating on Test Results From Life’s ExperienceHigh-Level Electronics Energy LoggerMeasuring and Recording Power Consumption Assembling the 4tronix M.A.R.S. Rover Kit Parking Disk with E-Paper DisplayAn Innovative Digital Replacement eCO₂ Telegram botAir-Quality Measurement with Telegram Notification Behind the Scenes of DIY High-End AudioElektor’s Ton Giesberts Interviewed on the Fine Art of Analog Design HomeLab ToursWork in Progress... RFID Tag Reading and RFID Door LockSample Projects from the Elektor Arduino Experimenting Bundle Oscilloscope Current Probe for RFRF Current Measurements Made Easy Not for the Faint-Hearted: Robot Arm KitWith Raspberry Pi Pico and MicroPython Generative AIWho Made This Anyway? Hexadoku
€ 7,50
Members € 6,75
Elektor Digital Elektor Mei/Juni 2023 PDF (NL)
Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Super-servotestervoor vier servo’s – stand-alone of in-system Analoge signalen en microcontrollersADC’s, DAC’s, stroommeting en meer embedded world 2023 Sub-Nyquist-sampling in de praktijkhogere frequenties betrouwbaar bemonsteren met subsampling Met Android-smartphone, spreek ik met ESP32?praktisch project met behulp van de Android WiFi-API Actief 1kHz-filter voor vervormingsmetingmeet beter door het het meetsignaal te optimaliseren Alle begin......multivibreert verder! Project 2.0correcties, updates en brieven van lezers Het nieuwe I3C-protocoleen waardig opvolger van I2C – of gebakken lucht? BlueRC: IR-afstandsbediening met smartphone en ESP32universeel en aanpasbaar Microcontroller-documentatie verklaarddeel 2: registers en blokschema’s Automatisering van testen en metentestapparatuur programmeren om je te dienen Elektor Infographicstesten en meten Overspanningsbeveiliging voor veilige werkingtransiëntbescherming voor niet-geïsoleerde DC/DC-voedingsmodules Meetapparatuur van het merk Wihatesters en meters voor installaties waar u op kunt bouwen Automatisch testen en samenwerken aan testresultaten Uit het leven gegrepenelektronica op hoog niveau Energieloggermeet en registreert het stroomverbruik Montage van de M.A.R.S. Rover Kit van 4tronix Parkeerschijf met e-papier displayinnovatief digitaal alternatief eCO2 Telegram-botmeet de luchtkwaliteit via Telegram Achter de schermen van DHZ high-end audioTon Giesberts van Elektor over de fijne kneepjes van het analoog ontwerpen Oost West Lab Bestwerk in uitvoering... RFID-tag’s lezen, en een RFID-deurslotvoorbeeldprojecten uit de Elektor Arduino Experimenteerbundel HF-stroomprobe voor oscilloscoopHF-stroommetingen gemakkelijk gemaakt Niet voor watjes – Makerfabs Robot Arm Kitmet de Raspberry Pi Pico en MicroPython Generatieve KIwie heeft dit eigenlijk gemaakt? Hexadokupuzzelen voor elektronici
€ 9,95
Members € 8,96