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ggurov/pcf8574_8ch_relay
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pcf8574 connected to 8channel relay board controlled via i2c off a raspberry pi and libwiring --------------------------------------------------------------------------------------------- this lets you have control over 8 high current channels using just usb power and raspberry pi + additional $22 dollars or so. build with: make ch_control 5 1 - turns on channel 5 ch_control 6 0 - turns off channel 6 super simple i2c to 8bit gpio board: http://www.amazon.com/Expansion-PCF8574-Expander-Evaluation-Development/dp/B00DUO17J6/ = $10 8 channel relay board: http://www.amazon.com/Kootek-Channel-Module-Arduino-Raspberry/dp/B00C8O9KHA/ = $12 the jumper on the relay board should be in JD-VCC position
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raspberry pi with pcf8574 connected to 8channel relayboard
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