The DS18B20 temperature sensor is a one-wire digital temperature sensor. This means that it just requires one data line (and GND) to communicate with your ESP8266 board. Each DS18B20 temperature sensor has a unique 64-bit serial code. This allows you to wire multiple sensors to the same dat...
Never tinker or try to flash a device using the serial programming interface while it is connected to MAINS ELECTRICITY (AC power). We don't take any responsibility nor liability for using this software nor for the installation or any tips, advice, videos, etc. given by any member of this...
As the data logger would be sat next to the electric meter and surrounded by mains cables we added an LC filter with two 4700uF capacitors and a 1mH inductor to smooth out any 50Hz noise on the 3.3V output. The mains current measurement was done with the same iSnail current sensor that...
I do not see this design fit for ESP8266I agreeIt is not mains isolated, and the originators target was to supply a total power consumption less than 50mA at 5V.That is just not adequate for the ESP8266. Reply Options 5 posts Page 1 of 2 1 2 Next Return...
Do NOT use it without a proper FUSE on MAINS line! Max current for solid state in this tutorial is 2A - suitable for room light only. Contents 1. Introduction 2. Materials 3. EasyIoT Cloud configuration 4. Program 5. Hardware 6. Buying guide Introduction Finished ESP8266 internet contro...
or instead try some home automation firmware likeESPeasyorESPurna. Just don’t do it while connected to the mains, and instead power the board through the USB to TTL debug board needed for programming. ESPurna has been designed specifically for Sonoff devices, and I can see it supports Sonoff...
OTA (Over the Air) update is the process of loading a new firmware to ESP8266 module using WiFi connection rather than a serial communication.
The circuit is attached directly to the mains electrical grid and is exposed to high voltages! Make sure you understand what you are doing and that, a mistake can be harmful or even lethal!!! Hardware The circuit is very simple. The main goal was to make it small enough so that it ...
[Kevin] selected an off-the-shelf device because he wanted something that was safe to use with mains power out of the box. But specifically, he selected the S31 because it has an ESP8266 inside that’s easy to reprogram with the aid of ESPHome. He ended up hooking up a whole extra ...
SEL pin (3) - Operation from USB port or mains power supply This pin allows the MCP73871 to operate in two modes, "USB" or "power". When it gets tolow level the operating mode is USBand, in this mode, the MCP73871 will limit the current consumption so as not to damage the USB ...