Jul 13 2015
In a previous post titled Arduino Leonardo and SPI Communications, I documented how to connect the Arduino Leonardo to the ENC28J60 Ethernet module. This post takes things a bit further and adds a DHT22 Sensor. The Arduino Leonardo is used as a WEB Server to Display Temperature and Humidity information from the DHT22 sensor. The …
Jul 06 2015
I just found out that my favorite Arduino of choice (the Leonardo) has a problem with SPI “Serial Peripheral Interface” communications (if you need to use the SS pin). For SPI (which is bidirectional) , the following pins are normally used: SS – Slave Select – digital 10. You can use other digital pins, but …
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