fritzenlab
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BH1750 light level sensor with microPython
We will learn how to control the BH1750 light level sensor with microPython, using the Raspberryp Pi Pico 2 RP2350 board and Thonny IDE
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HDC1080 temperature sensor with microPython
Let’s get to know how to implement readings on the HDC1080 temperature sensor with microPython, using Raspberry Pi RP2350
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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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Create analog voltage with PCF8591
I will teach you how to create analog voltage with PCF8591 and ESP32 in the Arduino IDE. Voltage between 0 and 3.30V from the serial monitor
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GPS tracking with ESP32-C6
I will teach you how to implement a GPS tracking with ESP32-C6, using softSerial and showing data on Arduino IDE’s serial monitor
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7 segment LED display and ESP32-C6 – common anode
Learn how to control a 7 segment LED display and ESP32-C6, to show numbers and letters. We will use a function to control it
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Blinking an LED with PIC12F675 and MPLAB X
Let’s get blinking an LED with PIC12F675 and MPLAB X, using the PICkit3 programmer and without delay() function (using interrupts)
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Tiny 0.49″ OLED display
Today we will learn how to control and use the Tiny 0.49″ OLED display from Aliexpress, a real tiny interface device
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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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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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Capacitive touch and debounce with Renesas RA4M1
I am showing you how to implement a capacitive touch and debounce with Renesas RA4M1 and TTP223b touch controller, using Arduino code
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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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Blinking commemorative keychain
Let me show you how I made a blinking commemorative keychain, made of PCB and a simple oscillator circuit (3 components)
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MQTT protocol with ESP32 and Adafruit.io
Today I am implementing and testing the MQTT protocol with ESP32 and Adafruit.io, an effective way of sending data to the internet
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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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