How to use INA219 current sensor with arduino and Make DIY wattmeter with it

INA219 current sensor

If you want sense electric DC current, then you will have some current sensors options. The current sensor can vary depends on what needed. We can decide which sensor to use based on its capability to sense the current. In this tutorial we will learn how to use INA219. So why INA219? In my opinion, …

Temperature and Humidity Sensor DHT11 with arduino Tutorial – Make OLED Termometer

DHT11 with OLED display (DIY thermometer)

DHT11 is cheapest temperature and humidity sensor compare to another sensor. It has 3 pins that we can easily interface with arduino. It uses single-bus operation. DHT11 Specification PCB size 22.0mm X 20.5mm X 1.6mm Working voltage 3.3 or 5V DC Operating voltage 3.3 or 5V DC Measurement range 20-95%RH;0-50℃ Resolution 8bit(temperature),8bit(humidity) Compatible interfaces 2.54 …

Lora Shield arduino Tutorial

LORA with arduino tutorial

How to use LORA with arduino and how to send data sensor using LORA.

Easy Pulse Plugin Heartbeat Sensor with arduino Tutorial

easy pulse plugin sensor

There are some heartbeat sensor in market with cheap price. I’ve used three of them. In my opinion, the most stable is easy pulse plugin.

Non Contact Temperature Sensor MLX90614 With Arduino Tutorial

MLX90614 contactless temperature sensor

MLX90614 can measure an object temperature without touch the object. It is also can measure high temperature. And it is easy to use with an arduino.

How to convert resistance to voltage

convert resistance to voltage

Converting resistance to voltage in electronics sometimes are so important because many electronics device such as microcontroller only can read voltage.

Understanding Voltage Divider

voltage divider

Unfortunately, your arduino can sense voltage only from 0V-5V. That’s why voltage divider come in handy.

How to use Thermocouple type K (MAX6675) with arduino

max6675 with thermocouple type K

Measure anything temperture with this!