A Wi-Fi 802.11n + Bluetooth 4.1 (Dual Mode) add-on board for any Pi model with the 40 pins GPIO connector including Pi 2, A+ and B+ It is an add-on board that provides Wi-Fi and Bluetooth connectivity for the Raspberry Pi. You can use Wi-Fi and Bluetooth USB dongles, however...

Matt Godfrey published his linear lab power supply which has adjustable voltage and current limit. Specs: 0-30V, 0-2A, separate 5V output, display of setpoint and output current and voltage: This project is a simple linear bench power supply with adjustable voltage and current. It...

This Half-bridge driver based on IR2104 gate driver IC and N channel Dpak MOSFET , The IR2104 is a high voltage, high speed power MOSFET driver with independent high and low side referenced output channels. HVIC and latch immune CMOS technologies enable ruggedized monolithic...

Maurizio @ emcelettronica.com tipped us with his latest article on how to generate analog voltages using a microcontroller. Many times, designers are faced with the need of generating analogue or analog voltage levels in purely digital circuits. Although the market provides today a...

Mahesh @ electronut.in show us how to program these tiny microcontrollers (ATtiny10) with Atmel Studio 7 and make an RGB led to light. I like Atmel tinyAVRs because they are tiny computers that I can (almost) wrap my head around. The Atmel ATtiny4/5/9/10 are the cheapest in the...

This is an OLED temperature display based on ATmega328p along with a NeoPixel led ring to display different colors depending on temperature. This is a small temperature display using a OLED with a NeoPixel Ring around it using MQTT on a ESP8266 and sending data to the on board...

Shantam Raj @ hackster.io discuss about how to panelize PCBs and generate Gerbers on Eagle CAD. In this article he shares his experience and common mistake he made in the process. I have been working with Eagle for quite some time but never really got a PCB manufactured. almost all...

Ken Shirriff wrote an article on reverse engineering the 555 timer chip, He writes: This article explains how the LMC555 timer chip works, from the tiny transistors and resistors on the silicon chip, to the functional units such as comparators and current mirrors that make it work....