Arduino 8×8 LED Matrix using MAX7219
In this tutorial you will learn how to drive a 8x8 led matrix using MAX7219 display driver IC. In this instructable I'm going to show you how to Interface with LED matrix using an Arduino and MAX7219 IC, this project can be used to make low resolution images using LEDs. This project...
Continue ReadingContactless OLED Thermometer With Arduino and MLX90614
Konstantin Dimitrov shows us how to build a contactless OLED thermometer using Arduino and MLX90614 infrared sensor. Hello, everyone ! Today I'm going to show you how to make a contactless OLED thermometer with Arduino UNO and Infrared temp sensor MLX90614 in 5 minutes. This project...
Continue ReadingESP8266 Bread Board Testing
This instructable shows how to test an ESP board on bread board without soldering, especially for ESP-07 and ESP-12(E) and may be ESP-03. ESP8266 Bread Board Testing -...
Continue ReadingRuuviTag – Open-Source Bluetooth Sensor Beacon
Open-source sensor beacon platform designed especially for makers, developers and IoT companies. Some of the features are: Easy to use IoT and Bluetooth 5 ready Filled with sensors (it can work as a weather station!) Affordable Attractive design and last but not...
Continue ReadingDark Sensitive Switch – LED Light
Dark activated LED light is a simple project which operates a LED when the light falling on the LDR goes below a set point. The circuit is built using LM393 comparator, LDR as light sensor, preset (potentiometer) for sensitivity adjustment, transistor to drive the LED. The project...
Continue ReadingMagnetic Field Measurement Using HMC5883 and Arduino Nano
In this tutorial we are going to learn the detailed working of HMC5883 with arduino nano. The HMC5883is a digital compass designed for low-field magnetic sensing.This device has a wide magnetic field range of +/-8 Oe, and an output rate of 160 Hz. The HMC5883 sensor includes...
Continue ReadingHow to Scroll a single LCD line – Arduino
R Jordan Kreindler show us how to scroll a single line on a LCD display. The Liquid Crystal Library has two quite useful functions scrollDisplayLeft() and scrollDisplayRight(). These functions scroll the whole display. That is, they scroll both lines on a 1602 LCD and all four...
Continue ReadingFuel-gauge ICs help prevent battery clones
Maxim’s family of ModelGauge m5 standalone fuel gauges provides SHA-256 authentication with a 160-bit secret key to make it harder to clone battery packs. The ICs also implement the ModelGauge m5 algorithm, which converts raw measurements of battery voltage, current, and temperature...
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