Small board with a slot for the ESP01(s) and a DTH11 sensor. Facts Description Value Baud rate 115200 (possibly also 9800, for me it was 11) ESP01 slot 1 DHT11 sensor Sensor pin 2 Supply voltage 3.7 – 12V Button Reset General data Application areas Views Programming Libraries Sensor There are diverse implementations here, it is also…
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I've already introduced the small relay board for the ESP01 with Alexa (link to the post). This is a board with a slot for the ESP01 and a relay for switching an external voltage. Similar boards are now also available with two, four, eight or more relays. These are switched…
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Hardcoded SSIDs and Wi-Fi passwords in Arduino code are not a good thing. Entering Wi-Fi credentials via the console is no longer up-to-date, especially if you don't have a console connection. It would be nice to have a general solution that allows IoT devices to be easily connected to your own Wi-Fi without having to already have something in the code...
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This is a circuit board with a slot for the ESP01 and a relay for switching external voltages of up to 250V AC and 30V DC. On AliExpress, these boards start at around €2 without the ESP01, and are available in sets for around €3-4. As home automation and voice assistants are in...
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Soldering board for soldering an ESP module for around €1 from fast Ali. What is a preview: As I am increasingly losing track of the ordered hardware, I will write a short preview after ordering. When I get to the hardware, I will replace the corresponding preview with the actual post. This way, you will receive…
Continue reading "Preview – 7x9CM Prototyp Platine zum Löten für ESP8266, ESP-12E, ESP-12F, ESP32"
The WEMOS C3 is the latest in the D1 Mini format. A USB Micro connection, a reset button, and two built-in LEDs on the ESP are the only peripherals. In terms of its dimensions, it is rather small, with only a few pins brought out externally. However, the ESP32-C3 with its RISC-V CPU features Bluetooth 5.0. Interesting how...
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The WEMOS D1 EP32 is the replacement for the D1 Mini. It features an onboard ESP 32 Wroom module. A micro USB connector, a reset button and two built-in LEDs on the ESP are the only peripherals. In terms of its dimensions, it is rather small, however, this does not limit the number of…
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The Pro version of the WEMOS D1 Mini has an external antenna connector and a soldered ceramic antenna. It also has more flash memory, specifically 16MB. Otherwise, it's the same as the Mini without Pro. Interesting about the WEMOS D1 Mini are the many expansion boards (see manufacturer). Facts USB Micro connector (CH340) Reset button 9 Digital Pins 1 Analogue Pin Operating voltage 3.3V Connection voltage…
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I bought this small package consisting of an ESP01, a control board and an RGB LED ring for around €8 from the large online retailer that starts with an A.
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The RTOS SDK is Espressif's own programming environment for the ESP8266. Facts The Arduino SDK also encapsulates the functionalities of this SDK. Now one might ask why write specialised code for the ESP8266 by using the SDK directly. The answer is not entirely simple but here are a few arguments: The framework offers extended functionalities which...
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