[Cheap][Hack] a 2.50$ Chinese MP3 Player for its 128×64 mini LCD

Hi everybody, I was looking for some hardware for one of my projects and I have ordered some super cheap mp3 players from ebay. This is one of them: So what do we got inside? pop 2 screws and ta-da… Continue Reading →

Cheap pH meter hack for Arduino

I needed a pH sensor for my AquaTank project, opened google, searched a bit and was stung by the prices “Holy ****, thats expensive!!” 109$  Sparkfun 35$ Atlas-scientific 29$ Absolute Cheapest – DFrobot Still not cheap enough for me 🙂… Continue Reading →

Saving & Loading Settings on SD Card with Arduino *Revisited*

Revisited – Fixed some bugs, improved stability, changed the file structure for mistake-proof reading, added Long integer support. For my AquaTank project I needed the ability to change settings of the system and I needed them to stay after power… Continue Reading →

Repairing an Arduino Clone – Replacing a diode

So I bought it on ebay. And the very first time I plugged the usb in, the power led barely light up, it was very dim and the PC won’t recognize it. On the other hand, when I connected it… Continue Reading →

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