Electronics
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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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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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Using a LDR light level sensor
Let’s get using a LDR light level sensor to sense the amount of light in the environment around. I am using a Raspberry Pi Pico 2
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What is PWM and how to use it?
Let’s dive into the content and get to know what is PWM and how to use it, using a ESP32-C6 as the controller to study it
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Remote control RC car project – the beginning
I am just starting a Remote control RC car project, a complete radio controlled controller + control board from scratch, come with me
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SDB628 boost circuit board
Do you know the SDB628 boost circuit board? it is a neat little board that takes 2-24V and outputs up to 28V at 4A (theoretically)
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ESP32-C6 dev board – PCBWay partnership
Let’s me show you the ESP32-C6 dev board – PCBWay partnership. They sent me 5 copies of this neat little board to test out
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HW-006 optical line tracker sensor
The HW-006 optical line tracker sensor is an optical assembly used to track lines, mainly for small competition vehicles
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DIY 3A/5A bench power supply
I made a bench power supply featuring variable voltage (4.5-12V at 5A), fixed 3.3V and 5V at 3A each. All of it using cheap modules.
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Soldering pin headers – quick video
Just a quick video of myself soldering pin headers on the Sipeed Tang Nano 4k FPGA board, by means of a soldering iron and a breadboard
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TP4056 battery charger chip
I am going to investingate how the TP4056 battery charger chip works, by explaining its workins to you, and how to apply it in your projects
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NTC thermistor temperature sensor Arduino
We will learn how to use the NTC thermistor temperature sensor with Arduino, reading it on an analog input
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Develop a circuit board – ESP32-C6 update 2
Update on how to develop a circuit board with ESP32-C6, using Kicad and featuring sensors link DHT11 and LM35, also a LED RGB WS2812
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Develop a circuit board – ESP32-C6 update 1
Let’s give a update on developing a circuit board – ESP32-C6 WiFi. It may feature sensors (DHT11 and LM35) and a WS2812 LED
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Develop a circuit board – ESP32-C6
See the process to develop a circuit board for the ESP32-C6 with some sensors onboard, like the LM35, DHT11 and also a LED WS2812
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How to test thyristor and triac
Let’s dive into and see how to teste thyristor and triac using a power supply, some resistors and LEDs. Multimeter is optional
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Simulate 555 in Arduino
Today we will implement a circuit and code to Simulate 555 in Arduino. 555 is a very well-known oscillator chip, let’s recreate it in Arduino
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Lower relay power consumption by histeresis and PWM
Learn how to lower relay power consumption by harnessing its coil’s histeresis via PWM with Arduino
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