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Energino is a plug-load meter that measures the amount of power consumed by whatever DC electrical appliance is plugged into its. It was originally designed to monitor the energy consumption of simple networking devices such as Ethernet switches and WiFi access points, but it can be used to monitor any DC appliance. Energino "sits" between the power supply and the actual device being monitored. Energino is also equipped with a mechanical relay allowing you to turn on/off whatever appliance that is plugged into it.
A thermocouple datalogger based on the Arduino platform & (previously, rolling your own thermocouples )… It never hurts to collect more data, and I often find myself wanting to record temperatures from a few extra animals. Most (all?) commercial thermocouple dataloggers that will record temperatures from multiple thermocouples cost several hundred or thousands of dollars. I set out to put together a relatively cheap 8-channel thermocouple datalogger based on the open-source Arduino development platform. Thermocouple Type-K Glass Braid Insulated – K .
Note for Arduino 1.0 An updated version with 1.0 support is available on github .
My friend Usman and I are collaborating long-distance on an Arduino project. He’s a software guy (by which I mean he’s a guy actually made of software. OK, not really, but almost) and doesn’t have time right now to get up to speed on hardware. So, I send him bits of hardware as needed. This is how we did the RFID iConveyor project.
Pulse Width Modulation (PWM): 8051 Code example ►Idea Behind Implementation The basic idea behind PWM implementation on 8051 is using timers and switching port pin high/low at defined intervals.
Overview Taken from macetech.com . ShiftBrite is a high-brightness LED module containing red, green, and blue elements.