The WeMos D1 R32 is an ESP32 housed in an Arduino Uno form factor. It looks like an Arduino, but its I/Os only operate at 3V instead of the usual 5V. This can lead to incompatibilities with expansion boards (shields). The price is under 5 Euros on fast shipping sites like AliExpress. The board features all the advantages of the ESP32 processor…
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Sales Name: 2018 Arduino Shield Expansion Board 6-12V with 4 Channels Motors Servos Ports PS2 Joystick Remote Control I bought the expansion board in a set including PS2 controller/receiver module, Arduino Uno and USB cable, from fast Ali for under €26. !!!To avoid a few mistakes beforehand, it makes sense to connect an external power source to the Arduino...
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Sensorknoten sollen möglichst lange und unabhängig arbeiten können. Dennoch benötigen sie Strom, um mit der vorhandenen Energie möglichst effizient umgehen zu können, hat der ESP8266 und andere Controller die Möglichkeit in den Tiefschlaf zu gehen. Das schöne ist er kann sich nach fast beliebiger Zeit selbst wieder aufwecken. Ein Nachteil beim ESP8266 ist das er …
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I came across the term MQTT online and really liked the approach behind it. So, I treated myself to a small experimental setup, which I've described below. First, a few details about MQTT. About MQTT General Information MQTT governs communication between data sources and data sinks using a broker. Data Source Sources for…
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As always, there is a wealth of information online on how to configure the Arduino GUI. Therefore, I will be very brief here, and for more detailed information, please refer to the sources linked below. Board Manager The ESP 32 has made its way into the Board Manager quite some time ago. The steps for installation are outlined here briefly. …
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This is about a China import and not the official Uno WiFi. The board has a full Arduino Uno with an Atmega processor and an ESP8266 chip on board. Via DIP switches, the Uno can be connected to the USB, the ESP to the USB, or the ESP to the UNO. For operation, …
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