摘要： /*** Example Arduino sketch for SainSmart I2C LCD Screen 16x2** based on https://bitbucket.org/celem/sainsmart-i2c-lcd/src/3adf8e0d2443/sainlcdtest.ino** by** Edward Comer** LICENSE: GNU General Public License, version 3 (GPL-3.0)** This example uses F Malpartida's NewLiquidCrystal library. Obta 阅读全文