There are many so-called 'Arduino compatible' platforms on the market. The ESP8266 – in the form of the WeMos D1 Mini Pro – is one that really stands out. This device includes WiFi Internet access and the option of a flash file system using up to 16 MB of external flash memory. Furthermore, there are ample in/output pins (though only one analogue input), PWM, I²C, and one-wire. Needless to say, you are easily able to construct many small IoT devices!
This book contains the following builds:
A colourful smart home accessory
refrigerator controller
230 V power monitor
door lock monitor
and some further spin-off devices.
All builds are documented together with relevant background information for further study. For your convenience, there is a small PCB for most of the designs; you can also use a perf board. You don’t need to be an expert but the minimum recommended essentials include basic experience with a PC, software, and hardware, including the ability to surf the Internet and assemble PCBs.
And of course: A handle was kept on development costs. All custom software for the IoT devices and PCB layouts are available for free download from at Elektor.com.
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.
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
Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.
Nog geen lid? Klik hier om een lidmaatschap af te sluiten.
Project-update: ESP32-gebaseerde energiemeterwe gaan verder met het prototype
Optimalisatie van balkon PV-centralesoverwegingen, interessante feiten en berekeningen
ESP32 met OpenDTU voor balkoncentralesgegevens van kleine omvormers via MCU’s uitlezen
Regelbare lineaire labvoeding0...50 V / 0...2 A + dubbele symmetrische voeding
Energieopslag – vandaag en morgeneen vraaggesprek met Simon Engelke
2024: een AI-odysseehet houdt nog lang niet op
Bluetooth LE op de STM32meetwaarden op afstand uitlezen
Mensvriendelijk slim keuken-voorraadsysteem
MAUI: programmeren voor PC, tablet en smartphonehet nieuwe framework in theorie en praktijk
ChatMagLevkunstmatig intelligente levitatie
Eenvoudige PV-regelaarbouw je eerste, volledig functionele PV-energiebeheersysteem
Koude-kathode-buizenvreemde onderdelen
Uit het leven gegrepennostalgie
Alle begin......bekijkt de FET
CAN-bus voor de Arduino UNO R4: een tutorialtwee UNO R4’s nemen de bus!
Elektor infographicvoeding en energie
Vergelijking van vermogensdichtheid en vermogensefficiëntie
Aluminium elektrolytische condensatorenstoringspotentieel in audiotechnologie
USB testen en metenmet de Fnirsi FNB58
De Pixel Pump pick&place-tooleenvoudiger handmatige assemblage van SMT-printen
Oost West Lab Bestnog niet zo lang geleden, in een land heel ver van hier...
“In de wereld van ethiek in elektronica kunnen zelfs kleine stappen een aanzienlijke invloed hebben.”
Ethiek in elektronicade OECD Guidelines en het Lieferkettensorgfaltspflichtengesetz
Chadèche: slimme NiMH-(ont)laderlezersproject in het kort
Project 2.0correcties, updates en brieven van lezers
This Wi-Fi module is based on the popular ESP8266 chip. The module is FCC and CE certified and RoHS compliant.
Fully compatible with ESP-12E. 13 GPIO pins, 1 analog input, 4 MB flash memory.
IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 2)Image Recognition Using Edge Impulse
ELEKTOR JUMPSTARTER NEWSUpcoming Campaigns
AN OPEN-SOURCE GPS TRACKING PLATFORMTraccar Maps Vehicle Tracking Without the Need for a Third-Party Cloud Server
JOY-IT LCR-T7 MULTI-FUNCTION TESTERTesting Passives, Discrete Semiconductors and IR Remote Controls
NOISE SYNTHESIZERFrom Noise to Music with the PRBSynth1
STARTING OUT IN ELECTRONICSEasier than Imagined! ... Continuing with the Coil
UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 2)Logical Neurons
ISSUES WITH SECURITY? FIGHT FIRE WITH FIRE!Flashbulb-Protected Analogue Memory Add-on For the Tamper-Evident Box LCR METER POSTER
BLUETOOTH BEACONS IN PRACTICEBeacons Light the Way Ahead
C PROGRAMMING ON RASPBERRY PICommunicating over Wi-Fi (Sample Chapter)
EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 2)The Hardware and How to Use It
HANDS ON THE PARALLAX PROPELLER 2 (PART 5)Inside the Smart Pin
MODBUS OVER WLAN (PART 1)Hardware and Programming
HOMELAB TOURSWhere the Junior Computer Is Brought to Life Again
BUILD YOUR OWN HIGH-PRECISION CALIBRATOR-10 V to +10 V, 0 to 40 mA, 0.001%
ARDUINO NANO RP2040 CONNECTRaspberry Pi RP2040 + Wi-Fi + Bluetooth THE PHYSICAL BODY OF ARTIFICIAL INTELLIGENCE
ERR-LECTRONICSCorrections, Updates and Readers’ Letters
CREATE GUIS WITH PYTHONIntroducing guizero
CO2 METER KIT FOR THE CLASSROOMAn ESP8266-Based Device from the University of Applied Sciences Aachen
NOSTALGIC MK484 MW/LW RADIO...Always Fun to Build!
ELEKTOR @ 60Let There Be Light!
HEXADOKUThe Original Elektorized Sudoku
