Dear all, I have an arduino UNO with a shield of ethernet w5100 HanRun, RTC cloc DSs3231 and ordinary Radio receiver 433Mhz. The transmitter unit is a nano with a 433 transmitter. In the ethernet shield I put a micro sd card where I want to write 4 sensors data with timestamp. I have tested the pro…

ARDUINO UNO + RTC I2C + Ethernet SHIELD W5100 + Radio Receiver 433MHz DI3

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