Nano - Two Devices on A4 and A5 (SDA and SCL respectively)

Plugins & Plugin Development Arduino Sensor
#1

As an ME not an EE, I’m outside of my comfort zone here so I’ll just ask the question.

Can I wire both a Barometer (BMP180) AND a my serial LCD display on the same two SDA and SCL terminals?

I’m assuming that their unique addresses will allow them to communicate side-by-side but… I really don’t know.

If I cannot do that, then what may be an alternative such that I can wire in the display output alongside the weather station input functions of this node in my array of sensors.

I want to display temp, humidity, barometric pressure and forecast in the device containing all of the sensors and the Nano.

I have it all working except this crossover.

Any help appreciated…

#2

OK, I found SoftwareSerial and it looks promising.

Anyone out there tried this?

Looks like an Arduino forum question, but I thought I’d try…

#3

Yep you can do this. Iirc its called the i2c bus. I use rtc and LCD on these pins…

Sent from my Nexus 5 using Tapatalk

#4

[quote=“gregl, post:3, topic:180734”]Yep you can do this. Iirc its called the i2c bus. I use and LCD on these pins…

Sent from my Nexus 5 using Tapatalk[/quote]

Thanks, I’ll try it.