The basic idea of my low-cost thermal imager started with my physics class in 2010. Our teacher bought a single-point infrared thermometer, also called a pyrometer, and asked if anyone wanted to use it for a science competition later that year. A friend and I came up with the idea of creating a thermal image […]
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DC millivolt sources are often used for thermocouple simulations, DMM, ADC and analog circuit calibrations and fault findings, etc. Most of the DC millivolt circuits are based on expensive (and sometimes hard to find) operation amplifier like OP7, LT1077, etc. In this article we introduce low cost DC millivolt source based on commonly available LM308
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A slimmed down version of the Raspberry Pi has been introduced with around half the power consumption and a lower price tag that tht original board. The new Model A version of the embedded computing platform has only 256MB of RAM included as standard, no Ethernet connection, which save on power, and only one USB port.
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