SD Card

An SD Card (Secure Digital Card) is an ultra small flash memory card designed to provide high-capacity memory in a small size. SD cards are used in many small portable devices such as digital video camcorders, digital cameras, handheld computers, audio players and mobile phones.

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Temperature Datalogger for PT1000 Probes

“A four-channel temperature datalogger for PT1000 probes measured by Atmega32U4 and logged on SD-card. My intention was to develop a temperature measuring and datalogging device because I had none. It should show the temperature measurement data on a display …

My Daughter’s laptop

“It’s a programable “laptop”. Hardware that allows me to program different activities in a nice box This is a long project, I will divide it into small bits so people can take pieces and set up their own. I …

Battery capacity tester

“Battery tester using an ESP32, micro SD cards and Arduino This project is a datalogger to check the capacity of 18650 batteries by determining if they are in good condition or they must be discarded. The data that is logged …

Rfid Nfc Arduino Access Terminal

“RFID NFC 13,65Mhz ARDUINO ACCESS TERMINAL - TIMBRATURE I needed an access control system for my office, able to log an NFC tag into a mysql database and/or in a text file. This is a major revision of a …

Arduino Powered Weather Balloon Datalogger

“Send your Arduino to collect data from the edge of space!! Hey everyone!! You’re probably wondering, wait, you can send an Arduino to space? Almost. Using a weather balloon, you can send an Arduino, camera, garlic bread, or anything …

CO2 Monitoring As an Anti-Covid19 Measure

“Here, we propose an open-source, portable, autonomous, cheap and easy-to-use device to monitor and record the concentration of CO2 in ambiant air in real-time. Using CO2 as a proxy for respiratory aerosols, the device can help define best practices regarding …

Audio Amplifier With the LM386!

“Hello everyone, today I’m going to show you how to make a simple audio amplifier with the very popular LM386. The hunt for an audio amplifier began when I wanted to spice up my Arduino projects with audio, but …

Dust Collector Monitor

“This is a dust collector monitor. Both the dust bin level and the filter are monitored. My earlier dust collector project only monitored the bin level. The video demonstrates the dust collector monitor detecting the filter needing cleaning. The threshold …

Creating a MIDI Pass-Through Recorder

“Create an inline MIDI recording with an Arduino, an SD card module, and never lose your musical noodling ever again! Creating a MIDI pass-through recorder If you’ve ever used audio software on the computer, you probably know that MIDI …

Diceware password lookup box

“Diceware is a way of generating harder to crack passwords. You roll 5 dice, look up the number in a table and jot down the word you find there, by chaining a string of words together you create a hard …