|
|
Here is another automatic plant watering system using Arduino. The system continuously senses the moisture condition of soil and activates the water pumping system if the soil condition is too dried. The system also implements a real time clock for timekeeping, LEDs to indicate various soil conditions, and a LCD display to show various parameters including the time and the status of the water pump.
Read more
Check this latest instructable on making an Arduino guitar tuner. The audio signal from an electric guitar is amplified and fed to an ADC channel of Arduino, which further processes the signal to extract the major frequency component in the audio. Based on the detected frequency, an LED lights up to show the note of the audio. Besides, it also indicates whether the string being played is sharp, flat, or in tune.
Read more
Most electronic scoreboards are expensive, and not everybody can afford them. This instructable is about a DIY scoreboard for softball that can be constructed for less than $100. The project uses LED strips to make seven segment digits, which are controlled by an Arduino Mega board through shift registers. The scoreboard displays the visitor and home team scores to 2 digits, the inning to 9 and the outs to 3. The display is controlled through an IR remote.
Read more
Here is a really cool instructable about making a prosthetic hand cum arm that operates on voice commands. The project uses a modified version of the InMoov hand/forearm to construct a five-finger prosthetic hand, which is controlled by an Arduino Uno along with a voice-recognition shield. This hand can perform 15 general hand gestures and actions that are used in daily life, such as pinch, peace, thumbs up, point, etc.
Read more
A Secure Digital (SD) memory card is the most standard memory card for use in mobile electronic devices, such as cell phones, digital cameras, GPS devices, and tablet computers. Communication with an SD card can be done in one of two modes: the SDIO mode and the SPI mode. By default, the SD card operates in the SD mode, which is much faster than the SPI mode and is thus more preferable in the portable devices for achieving high-speed data transfer. If you have a damaged SD card that contains valuable information, this example shows you might have a chance
Read more|
|