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Showing posts from February, 2015

DS18B20 1 wire communication, LED temperature display 7

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Today we are all going to learn chip DS18B20 temperature. I Characteristics: The specification of the sensor DS18B20 can mention briefly as follows: • Use a wireless interface should just have one leg out to the media. • It is possible to measure the temperature in the range of -55 -> +125 oC.Voi temperature range -10 ° C to + 85 ° C, the accuracy of ± 0.5 ° C.Co temperature warning function sweeping away the value given. • Voltage: 3 - 5.5 V, you can configure multiple encryption level from 9-12 bits The greater the number of bits precision hon.Thoi conversion time is 750ms maximum temperature for 12 bit encryption • Current consumption in sleep mode tiny. • Each sensor has a unique identification code stored in memory 64-bit on-chip ROM (on chip), binary values ​​are laser engraved. • If configured for DS18B20 under 9,10,11,12 bit precision, we have respectively: 0.5 ° C, 12:25 ° C, 0125 ° C, 0.0625 ° C.Theo default manufacturer if they It is not configured mode, it w...

Rechargeable battery backup circuit for Smartphone, using MC34063 IC

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Hi all,   Chip long time no post anything interesting, is to learn the IC mc34063, to earn share posts made redundant charging circuit for Smartphone Post to share your research and learn, how people do How?   Do not by Chip circuit design should not ensure stability chay.Chip not resolve complaints when the circuit xoet xoet offline ^^   Illustrations Product