Unlock a Door with your Fingerprint
https://www.electronics-lab.com/unlock-a-door-with-your-fingerprint/
by Kinoma @ instructables.com: We built a biometric fingerprint-controlled lock prototype. A fingerprint scanner is used to capture and store the fingerprints of authorized users. When the scanner recognizes a user, a solenoid plunger disengages and opens the lock. Unlock a Door with your Fingerprint – [Link]
How to program the ATtiny85 with the Arduino UNO board
https://www.electronics-lab.com/how-to-program-the-attiny85-with-the-arduino-uno-board/
by codebender_cc @ instructables.com: In this tutorial we will use an Arduino board as an ATtiny programmer. To do this we will use one Arduino UNO board as an ISP (programmer) and one ATtiny85 micro-controller. We will use Codebender – online Arduino IDE. With the following procedure you will be able to program easily the ATtiny45 […]
Home automation with Telegram BOT
https://www.electronics-lab.com/home-automation-with-telegram-bot/
by lucadentella.it: The project I’m going to describe today it’s a sort of proof of concept that will demonstrate the possibility to remote control sensors and actuators (for example a couple of relays) via Telegram. Telegram is an instant messaging application, similar to the famous Whatsapp. Last June, the Telegram developers announced that a new set […]
Simple, Cheap Motor Controller
https://www.electronics-lab.com/simple-cheap-motor-controller/
by TeamJaeger @ instructables.com: I’ve used this simple circuit several times to drive motors (like in my Stair Climbing robot) as well as solenoids. I originally picked it up from this instructable which is focused on controlling a solenoid. I wanted to isolate this circuit in its own Instructable as a motor driver so I could […]
Arduino Thermometer With DS18B20
https://www.electronics-lab.com/arduino-thermometer-with-ds18b20/
by KonstantinDimitrov @ instructables.com Hello, everyone !!! Today I’m going to show you how to make Arduino thermometer with DS18B20 digital temperature sensor, builded on breadboard and connected together with jumpers. Info about the sensor – DS18B20 is 1-Wire digital temperature sensor from Maxim IC. Reports degrees C with 9 to 12-bit precision, -55C to […]
IP Time Clock using NTP protocol
https://www.electronics-lab.com/ip-time-clock-using-ntp-protocol/
by msuzuki777 @ www.instructables.com So this Lazy Old Geek (LOG) has a couple of clocks in my bedroom. One of them loses time when the power is lost. The other is semi smart and automatically adjusts for Daylight Savings Time. Unfortunately, it does this using the old standard so I have to re-set the time four […]
USB PIC Programmer
https://www.electronics-lab.com/usb-pic-programmer/
Stefano Purchiaroni rebuild a USB PIC Programmer that he found online. He writes: This page is dedicated to everybody needs to program a PIC (Microchip) device via USB port. Looking on the web for ready-to-use projects, I found a good one called Open Programmer, coming with several schematics, PCBs and Open Source code. The original […]
USB PIC Programmer
https://www.electronics-lab.com/project/usb-pic-programmer/
This page is dedicated to everybody needs to program a PIC (Microchip) device via USB port. Looking on the web for ready-to-use projects, I found a good one called Open Programmer, coming with several schematics, PCBs and Open Source code. The original link is http://openprog.altervista.org/OP_ita.html What concerned me was the need to mount, on the mainboard, a […]
Large Current Relay Driver
https://www.electronics-lab.com/large-current-relay-driver/
This is a large current Relay module with single pole double throw switch which provides normally closed and normally open operations. The Relay is the most common used module in application such as home automation, industrial automation, and machine on/off. Sometimes you need to control large current such as the fans, lights, water heaters, room […]
Large Current Relay Driver
https://www.electronics-lab.com/project/large-current-relay-driver/
This is a large current Relay module with single pole double throw switch which provides normally closed and normally open operations. The Relay is the most common used module in application such as home automation, industrial automation, and machine on/off. Sometimes you need to control large current such as the fans, lights, water heaters, room […]