Embedded orientation detection using the MMA8450Q
NXP’s accelerometer chip MMA8450Q, provides orientation detection on handheld devices: This application note targets the portrait/landscape orientation detection feature which has become standard in many hand-held electronic devices. Additionally, this application note aims to...
Continue ReadingFPGA-Based Arduino Shield
Inspired by an interest in spreading the concepts of FPGA, and because its ability to overcome most of other platforms limitations such as IO, memory, and peripherals, technolomaniac had worked on developing the first Arduino FPGA shield. A Field-Programmable Gate Array (FPGA) is...
Continue ReadingThe SilentSwitcher, A Quiet Mains-free Power Supply
Audio projects become smaller over time with the rapid advancement of technology. A traditional power supply is still considered large compared to audio projects size constraints and it may not fit such delicate applications that need to deliver a good sound with zero noise. Jan...
Continue ReadingUsbSafe² – Programmable dongle for protecting USB devices from USB hosts and chargers
USB connections can transfer both information and power. UsbSafe² is a device for protecting USB-connected hardware from both excessive voltage, current and unauthorized data access. Unfortunately, the practice of “juice jacking” (accessing data from a device connected to a...
Continue ReadingiBreathe, A Breathalyzer Based on Hexiwear
Knowing the amount of alcohol you drunk is becoming easier using the iBreathe Breathalyzer project by Dave Clarke. You just have to blow in the alcohol sensor, then it pings the result to a smartphone app and to the cloud to document it as a table so you can see alcohol intake through...
Continue ReadingA Multi-Use Mini Sensor Platform
While developing a smart hardware project, such as control and automation systems, you will almost need to use different types of sensors for collecting and gathering necessary data. LastSamurai had designed a platform that aims to simplify the use of digital and analogue sensors. The...
Continue ReadingATtiny85 Light Sensor – I2C slave device
Paweł Spychalski build a photoresistor based daylight meter sensor connected via I2C bus using ATtiny85: I love AVR ATtinyx5 series microcontrollers. They are cheap, easy to use, they can be programmed just like Arduinos and comparing to their size they offer great features. For...
Continue ReadingRegulator offers independent outputs
Susan Nordyk @ edn.com writes: Housed in a 15×9×2.42-mm over-molded BGA package, the LTM8049 µModule dual-output DC/DC converter from Linear Technology is configurable for a combination of SEPIC and/or inverting operation by simply grounding the appropriate output rail. All that...
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