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This low power wireless gas meter monitor built at a budget of about 35EUR is battery-powered and uses a JeeNode MCU board along with an nRF24L01+ transmitter to send the gas consumption info to a remote Raspberry Pi.
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This instructable describes a mini line follower robot that requires no microcontroller unit for control. The line sensing and steering mechanism is constructed totally using analog circuitry consisting of two OpAmps. The robot is powered by a rechargeable Lithium-ion battery.
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This application note demonstrates color mixing using the PIC12F1572 MCU. The PIC12F1572 microcontroller features three 16-bit pulse-width modulators (PWMs), which allow precise control over each RGB LED, allowing smooth transitions even at low-brightness/luminosity levels. Development efforts are supported by the following features of this demonstration board. • ICSP™ programming connector • EUSART bus tie-in points • USB or battery powered • Multiple test points A color mixing software routine allows developers to specify colors in xyY format with the PIC® device performing color mixing calculations.
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Snowfall is typically measured in inches. However, when it comes to shoveling snow off the driveway, your would probably like to know how dense the snow has accumulated because that is what going to determine how much effort and time you will need to complete the task. This instructable shows how to modify a simple digital weighing scale to construct a snow monitoring scale which could be a nice addition to your DIY weather station.
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This instructable illustrates a simple circuit to play wav sound files stored in an SD card using arduino Nano V3.0.
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