Arduino
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Indoor weather station with MQTT, V2
I just created and Indoor weather station with MQTT, V2 with ESP32, ENS160 and BME280. Programmed with Arduino code and using Adafruit.io
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ENS160 + BME280 Environmental Sensor
Today’s post is all about the DFRobot’s ENS160 + BME280 Environmental Sensor, a bundle of two very nice weather sensors
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Just buy this Arduino course
Just buy this Arduino course and learn Arduino from scratch, everything from available boards all the way to code optimization
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ST7735 TFT LCD display
In this article we will learn how to use the ST7735 TFT LCD display with Raspberry Pi RP2040 Zero and…
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Create analog voltage with MCP4725
Today I bring you a way to create analog voltage with MCP4725, a DAC (digital to analog) chip. We are using ESP32-C3 and Arduino code
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Using two LEDs as Human-machine interface
Today I will show you something very uncommon, using two LEDs as Human-machine interface. We will show an integer blinking LEDs
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Making sounds with LDR and buzzer
Have you thought of making sounds with LDR and buzzer? this is exactly what we are doing in this post, so get ready to rock!
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HDC1080 temperature and humidity sensor
Let’s get to know the HDC1080 temperature and humidity sensor, an integrated sensor made by Texas Instruments, communicates via i2c
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Power Arduino and ESP32 from batteries
Let’s dive in and learn how to power Arduino and ESP32 with batteries, using a few Aliexpress modules on the way. All safe and sound.
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16×2 LCD display with ESP32
Let’s get controlling a 16×2 LCD display with ESP32, using the Arduino IDE and a simple library. It can control various sizes of displays.
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SGP40 air quality sensor with ESP32
Today I will show you how to write code and test the SGP40 air quality sensor with ESP32 and Arduino code. It needs a companion SHT21
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Human eye light level sensor BH1750
Let’s study the human eye light level sensor BH1750, a sensor capable of sensing between 1 and 65535 Lux via i2c
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Binary clock with ESP32 and API
I am showing you how to implement a binary clock with ESP32 and API, getting hour and minute from the internet and showing in LEDs
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DIY RGB light box with Arduino
Let’s get to making a RGB light box with Arduino, using WS2812b neopixels and Arduino Pro mini, battery powered
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APDS9900 cellphone presence sensor
Let’s learn how to use the APDS9900 cellphone presence sensor, a light and presence sensor by Broadcom for cellphones
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Electronic dice with Raspberry Pi Pico 2
I’m implementing a full electronic dice with Raspberry Pi Pico 2, using the random() function of the Arduino IDE and LEDs
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HTU21D temperature sensor with ESP32
We are going to implement code for using the HTU21D temperature sensor with ESP32. This is an i2c temperature and humidity sensor.
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LM35 temperature sensor with ESP32
Let’s dive in and learn how to use the LM35 temperature sensor with ESP32, using a single analog input and a bit of simple code.
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Ultrasonic distance sensor HC-SR04 with ESP32
Today we are going to talk about the ultrasonic distance sensor HC-SR04 with ESP32, a neat little sensor used to measure distances
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GY-50 L3G4200D gyroscope with ESP32
We will learn how to use the GY-50 L3G4200D gyroscope with ESP32, a component made by ST semiconductor to measure angular velocity
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