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Say, you’re starting your electronics journey with a few projects in mind. You have an ESP8266 board like the Wemos D1, a Li-Ion battery, you want to build a small battery-powered sensor that… ...

This project provides the ability to calculate and report the total litres of water within cylindrical water-tanks, more specifically rainwater tanks connected to a rainfall-gutter-collection system.

Wemos D1 board, a $9 ESP8266 board in Arduino UNO form factor, now has a little brother with Wemos D1 mini.The board looks somewhat similar to NodeMCU with breadboard friendly I/Os on the sides and a ...

Fig. 2: Circuit diagram humidity and temperature monitoring using Arduino with ESP8266. The DHT11 sensor senses humidity and temperature, and sends the information to digital pin 5 of Arduino MCU, as ...

In this project we are going to make a Heart Beat Detection and Monitoring System using Arduino that will detect the heart beat using the Pulse Sensor and will show the readings in BPM (Beats Per ...

What voltage should I use for soil moisture sensor with Arduino? Use 5V for soil moisture sensors with Arduino UNO. While the sensor can work with 3.3V, using 5V provides better analog resolution and ...

But by attaching the sensor’s fan to the ESP8266’s 3.3 V pin, ... There are a number of sensors with Arduino support that can interface with an ESP8266 so its easy to get their data to an MQTT ...

Here we will use AT commands to send data from Arduino to ESP. Circuit Diagram . Below are the connections: Signal pin of pulse sensor -> A0 of arduino; Vcc pin of pulse sensor -> 5V of arduino; GND ...

The complete schematic to connect the Turbidity sensor to Arduino is shown below, the circuit was designed using EasyEDA. This is a very simple circuit diagram. The output of the turbidity sensor is ...

I’ve not spend time on it, because there’s probably very little value in reverse-engineering the protocol, simply because of the 4-pin to flash your own firmware. Since it’s based on ESP8266 you could ...