![]() Warning: Why is there no Rpi involved? First I wanted to be sure I understand I2C. Master and slave are connected by the Black, White and Green wires. The lower is the I2C slave and holds the sensor. The upper device is an I2C master has a button and a led. ![]() I looked into this and this is my first experiment for communication between two Arduino Nano’s. It works with master-slave relationships and the devices are connected by only two wires (and a third one but that’s just the ground wire). And the Arduino is reading data near real-time but it has limited capacity for the program logic.Īnd the nice thing is that they both understand I2C, a protocol to communicate between devices. ![]() The Rpi is slow but can communicate very easy with the internet (and it can hold an SSL key □ ). ![]() This is a very common scenario called a Gateway. So I was thinking, what if I use an Arduino to read the sensor information and then connect my Rpi to it to do some internet stuff with the information collected by the Arduino. But I had forgotten that the Rpi does not have any analog ports so half of them were useless… for the Rpi.įor example, the Ky-015 Humidity and Temperature sensor for Arduino is a nice temperature and humidity sensor but it can not be used in conjunction with a Raspberry Pi.īut in my collection of IoT devices, next to the Raspberry PI 2B’s, I also have a couple of Chinese Arduino clones to play with.
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