Grove Serial LCD v1.1

Products & Technology Grove
12

I think you can also use the (free?) I2C header on your Seeeduino v3.0.
But you cant use this if I2C devices are connected…

Digital pin numbers for SoftwareSerial:
Pin A4 (SDA) = 18
Pin A5 (SCL) = 19

instructables.com/id/How-to- … ith-no-ex/