Irrighino: A complete watering system based on Arduino Yun

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Luca’s Irrighino is a complete automatic watering system using Arduino Yun, and features a configurable number of solenoid valves, AJAX web interface, programmable weekly schedule, and manual activation/deactivation. Luca writes, An Arduino Yun – the “brain” of irrighino – is connected to the switch panel (with phsical switches and status leds), the rain sensor and the relay board that controls the solenoid valves. Yun is also connected to the home wifi network: a device (PC, smartphone…) connected to the same network can open the irrighino webinterface and configure and control it. If you have an Internet connection, with the correct NAT (Network Address Translation) settings you can also manage your watering system from

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Programming ARM using MBED

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Al Williams from Hackaday has posted a brief tutorials for beginners on how to get started with ARM programming using the MBED platform. He has used  the KL25Z Freedom board from Freescale for illustration in his tutorial. Even though the Arduino was hardly the first 8 bit microcontroller board to support a bootloader and the C/C++ language, it quickly became the de facto standard for hobby-level microcontrollers as well as a common choice for one-off or prototype projects. I’m sure there are a lot of reasons why this occurred, but in my mind there were three major reasons: price, availability of lots of library

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Crunchtrack is an open source all-in-one CAN, GSM, and GPS board

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Mastro Gippo’s entry to the 2015 Hackaday Prize is an open source design of a GSM modem, GPS receiver, and CAN transceiver board. I’ve always loved complex machines that can handle and transform huge amounts of energy to make very useful work. Among these machines, my life choices got me into the automotive field, where I’ve been working for the past 10 years. Just after school I found a job at Texa, an automotive diagnostic company, where I was writing software and reverse engineering communication protocols. My passion for efficiency and electronics made me leave that job after 5 years

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32-bit audio effect processor to enhance guitar play

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This 32-bit audio effects processor is randy.day‘s entry to Hackaday Prize 2015 and uses the TI TLV320AIC3204 codec and a PIC32MX150 to create a multifunction guitar effects unit.   An OLED and rotary encoder provide menu selection. So far I have 13 effects programmed (pitch shift, Flanger, echo, chorus, etc.) and an E2 tuning tone, and I still haven’t explored the TLV320’s filters and onboard goodies. The ‘3204 is a stereo device, so the second channel can be a mic/aux input, a noise gate input, a pre-programmed sample output … I’m open to suggestions.

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