1 esp8266 1 UltraSonic Sensor Jumper wires Procedure. 1)First,connect the board with the following schema: esp8266 GND ----> Ultrasonic GND esp8266 D2 ----> Ultrasonic Echo esp8266 D1 ----> Ultrasonic ...

Using the Adafruit Feather Huzzah ESP8266 and an HC-SR04 ultrasonic sensor communicating to an Adafruit IO dashboard via MQTT, this provides the ability to collect and monitor tank volume in real time ...

This ESP8266 based IoT smart Jar allows us to keep track of the stocks, and it is easily accessible from using the internet. The Jar includes an ultrasonic sensor at the top of it and uses the ...

IoT Based Dumpster Monitoring using Arduino & ESP8266; HC-SR04 Ultrasonic Sensor Pinout. The HC-SR04 ultrasonic proximity sensor module has 4 pins; those are VCC, Trig, Echo, and Gnd. The input and ...

Introduced back in June, the IKEA VINDRIKTNING is a $12 USD sensor that uses colored LEDs to indicate the relative air quality in your home depending on how many particles it sucks up. Looking to i… ...

Principle of measuring ultrasonic sensors is to send a Trigger signal with a length of 10 μs (microseconds), which bounces off the water level and returns to the receiver - Echo. Time-of-Flight method ...

Sonoff TH16 is a WiFi relay device powered by Espressif ESP8266 WiSoC, able to handle a load up to 16A (3500Watts @ 220V), and including a jack for sensors. The company recently sent me a sample ...

HC-SR04 sensor has a 15° detection characteristic. The beam is relatively narrow and the sensor is also suitable for narrower wells and tanks, but it is not waterproof and has a high risk of corrosion ...