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Category: Electronics

ESP32 self updating from web server

10 March 2022 giodem Electronics

Over the air ESP32 update, fetching firmware from folder in remote server. The new .bin file is located in a …

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PV string simulator to test grid solar inverters

10 January 2022 giodem Electronics

A simple and inexpensive circuit to power a grid-tied photovoltaic inverter on the DC side, reproducing the i-v characteristic of a photovoltaic string. Useful to power an inverter at the bench, during repair.

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DIY Pick and place machine with OpenPnP

29 March 2021 giodem Electronics

This PnP machine is designed to be precise (linear rails) and economic (small 3D printed parts, wooden frame), and use …

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Flash .hex files on Atmega without Arduino IDE

7 August 2020 giodem Electronics

Download XLoader. Select your .hex file. Select your device, com port and baud rate. Click upload.    

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Electromagnetic gun

24 November 2017 giodem Electronics

This is a nice experiment to throw an aluminum “bullet” up in the air at high velocity, and demonstrate the …

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Flashing lamp circuit

24 November 2017 giodem Electronics

When the circuit is powered up a certain current flow from the base of transistor BC558 into the 560 k? …

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LT Spice repetitive signal

24 July 2015 giodem Electronics

PWL that loops forever LT Spice – How to simulate a repetitive signal? There is a quick and easy way …

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  • ESP32 self updating from web server
    10 March 2022
  • PV panel IV curve simulator
    10 January 2022
  • PV string simulator to test grid solar inverters
    10 January 2022
  • Recent projects
    9 January 2022
  • DIY Pick and place machine with OpenPnP
    29 March 2021
  • Use Arduino timers like PLC timers
    18 March 2018
  • Pioneering photovoltaic
    24 April 2018
  • Installation of the photovoltaic plant at home with Sun tracking
    15 February 2006
  • Sun tracking control system for PV
    6 December 2017
  • Flash .hex files on Atmega without Arduino IDE
    7 August 2020
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