• Energy Meter GSM with Arduino (part 2)

      It monitors the electricity consumption and sends the detected data to the cloud through the GSM cellular network; it is based on an Arduino Mega equipped with GSM Shield and a board on which the measurement...

    • Posted 5 days ago
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  • Energy Meter GSM with Arduino (part 1)

      It monitors electricity consumption and sends the detected data to the cloud through the GSM cellular network; it is based on an Arduino Mega equipped with GSM Shield and an absorption detector board. First instalment.  ...

    • Posted 1 week ago
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  • ARDULOCK: a keyboard with RFID module

      With Arduino Mega, we create, a keyboard with RFID module, a configurable access control system, to manage electric locks.   In the market there are different types of controls for electric locks: from the simple insertion...

    • Posted 1 month ago
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  • Jolly: add WiFi to your Arduino UNO

    With 10 million Arduino UNO sold worldwide, this board becomes the most widespread prototyping board ever. The first Arduino UNO board was introduced in 2005 and in those days integrating a communication system such as WiFi was...

    • Posted 4 months ago
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  • How to make a custom shape PCB with Eagle

    The usual rectangular shaped PCBs got bored. The current prototyping services like PCBWAY allow to create PCBs with different shapes. An excellent software that allows you to get the gerber to be printed is Eagle. With the...

    • Posted 4 months ago
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  • Control everything remotely with the GSM shield

    We emulate the TDG series remote controls using the GSM Shield. It’s not been long since we presented our GSM shield for GSM/GPRS modules SIMCom, QUECTEL, FIBOCOM etc. that was born to be incorporated in Arduino-based projects...

    • Posted 5 months ago
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  • Microwave Radar

    Motion detector based on the Doppler effect, made by combining a specific sensor with a circuit that amplifies the output signal. Now the devices used in presence and movement detection systems, to be combined with automations for...

    • Posted 5 months ago
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  • 3DRAG + MOTORFISH: How to prevent step losses in 3D printer

    It solves the problem of pitch loss that can trouble 3D printers and which, especially in large printers that require many hours to print parts, can mean huge losses of time and money. In previous posts we...

    • Posted 6 months ago
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  • Motorfish: The stepper does not misses a step (the Firmware)

    Let’s describe the firmware of the stepper motor feedback controller and test it on the 3D printer. (Read the first post) In the limits of non-retroactive stepper motor control is that in applications for the drive of...

    • Posted 6 months ago
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  • Motorfish: The stepper does not misses a step

    Controller with stepper motor feedback able to dynamically check the shaft positioning and prevent possible step losses. Who has never happened to launch a complex and long 3D print, maybe a job of hours or dozens of...

    • Posted 6 months ago
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  • “Maker Faire Rome – The European edition” returns to the Gazometro Ostiense

    Innovation and the general public in contact again! Thanks to the constant progress of the vaccination campaign, “Maker Faire Rome – The European Edition“, the biggest European event dedicated to innovation, promoted and organised by the Chamber...

    • Posted 8 months ago
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  • Single-chip saturation meter

    We create the instrument that the reports have brought in vogue, but that for years has been used in hospitals and in sports medicine to verify the degree of oxygenation of the blood. The Coronavirus epidemic that...

    • Posted 9 months ago
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  • Raspberry Pi Relay Board

    8 relays controlled by 8 opto-isolated digital lines or by Raspberry Pi. It’s not the first time that we propose a relay board, because in these pages you have found both generic control boards that can be...

    • Posted 11 months ago
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  • PCB CAD, A SELECTION GUIDE

    Getting to know and evaluate the software offer for PCB, in order to choose the best one for our needs.   Designing an electronic board is a considerable and varied effort, both in terms of board design,...

    • Posted 11 months ago
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  • Automatic dispenser for cats

      It automatically supplies meals to your pet at preset times, by providing the daily dose of cat kibble. Having a pet involves big responsibilities, first of all granting them food; unfortunately, a hectic lifestyle and imposed...

    • Posted 11 months ago
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  • Do you have a mask? RASPBERRY Pi SEES IT

    Identify faces in a video or live shot and recognize if they are wearing a mask: easy with the “raspberry”. The spread of COVID-19 has created a global health crisis that has had a profound impact on...

    • Posted 11 months ago
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  • Arduino-controlled Rubik’s cube chandelier solves itself

    Rubik’s cubes have been mystifying and frustrating people for more than 40 years now. According to Forbes, 450 million Rubik’s cubes had been sold by 2020. But based on our very scientific estimates, only a small fraction...

    • Posted 12 months ago
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  • Arduino ecg device

    As Peter Balch explains, COVID-19 can sometimes give rise to cardiac complications. So, while not presented as an actual piece of medical equipment, he decided to construct an ECG (electrocardiogram) unit using an Arduino Nano for control...

    • Posted 12 months ago
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