Bob tipped us with his latest project, it's a 9V to 1kV DC-DC converter using CD4011 IC to produce a square wave and a IRF530 transistor to drive the transformer. Finally, I have made a new high voltage supply based on an inverter transformer and voltage doubler. It seems to be ok...

Dual DC Motor driver using two L293D IC. The L293D device is quadruple high-current half-H driver. The 293D is designed to provide bidirectional drive current up to 600mA a voltage from 5V to 36V. It provides 600mA +600mA on each channel suitable for mini hobby robots. The board been...

Here is a detailed guide on how to get started with ATMega328P microcontroller. The guide goes in details on how to setup it on a breadboard and how to upload your first code on it. and blink a led. The real benefit of using this microcontroller is that it’s only $4 US, whereas...

You can find some interesting projects on MeowCAD and one of these is a“8 Bit Heart”. MeowCAD is an online, in-browser electronics design tool that's completely free and open source. Use it to create schematics, printed circuit boards, share with your friends or just play...

Jelmer @ jelmertiete.com did a teardown on a cheap IP camera and also obtained the root password of it with the goal to investigate the security of such a devices. He writes: IP Cameras have become extremely cheap in the last couple of years. Mass production made the prices of...

DIL-Duino is a complete Arduino environment in a DIL-8 form factor based on the DigiSpark Hardware. by Daniel Grießhaber: DIL-Duino uses the QFN Version of the ATTiny85 and a USB Bootloader to provide the easy to use Arduino stack in a single DIL-8 Package Footprint. To fit the...

Deomid Ryabkov introduces us a method of flashing ESP8266 in 5 sec. To achieve that he used a modified ESPTool. More details on the link below. If you are developing for ESP8266, you may be familiar with esptool, which is a tool that you use to upload your code to the device. And it...

Patrick Van Oosterwijck has published a LiFePO4 battery solution for Raspberry Pi that will also act as UPS power supply: The project is built on top of a LiFePO4wered/USB module. A small board is added with an MSP430G2131 microcontroller that takes care of monitoring input and...