This is a library used for SiFive Hifive 1 Rev B board to communicate with Lyquid Crystal Display (LCD) with I2C module and examples of how to use this it (LiquidCrystal_I2C.c, LiquidCrystal_I2C.h).

Demonstration Video

Download

Download or Clone from Github repository

git clone https://github.com/TaLucGiaHoang/hifive1-revb-bh1750

Build Examples

Use FreedomStudio IDE to create a SiFive project for HiFive 1 Rev B board.
Then copy LiquidCrystal_I2C.c, LiquidCrystal_I2C.h, delay.c files and a selected example (BlinkingCursor.c, CustomChars.c, HelloWorld.c, SerialDisplay.c) in examples folder to your project and build.

Hardware Requirements

SiFive Hifive 1 Rev B board
LCD1602 with I2C module

Wire Connections

HiFive1 Rev B      LCD I2C module
IO19 (SCL)    <--> SCL
IO18 (SDA)    <--> SDA
5.0 V         <--> VCC
GND           <--> GND

Development tools

SiFive IDE: FreedomStudio-4.7.2.2020-11-2-x86_64-w64-mingw32 (https://github.com/sifive/freedom-studio/releases/tag/v2020.11.1)
Arduino IDE: arduino (https://www.arduino.cc/en/software)

Documents

I2C-Master Core Specification – i2c_specs.pdf
SiFive FE310-G002 Manual v19p05 – fe310-g002-manual-v19p05.pdf