Add ADC to S5D9 IOT board

March 2, 2018

Project Goals

  • Learn to connect a popular 4 channels ADC Module to the 3.3V S5D9 IOT board.

  • Examples show how to connect it to either grove A (r_sci_i2c port) or B (r_iic port).

  • Examples show either configuration with and without using framework.


Project Description


This board has two grove headers. Grove B is an IIC port while grove A is an SCI port. You creates r_iic driver for the IIC port and r_sci_i2c for the SCI port.

6 examples are included in this tutorial.

  1. Grove B / r_iic driver (only for the fast speed mode) *

  2. Grove B / framework with r_iic driver

  3. Grove A / r_sci_i2c driver

  4. Grove A / framework with r_sci_i2c driver

  • Because r_iic has some issue for standard speed mode. Two possible workaround examples are included.

  1. Grove B / r_iic driver / method 1 with busy bit check

  2. Grove B / r_iic driver / method 2 with busy bit check

Both examples check for the hardware busy bit before the code starts the next i2c transmission. The above examples are are done with limited testing. At this point, this ADC component seem to work well with these workaround solutions.




1. Renesas E2 Studio Tool version

2. Renesas SSP version 1.30

3. S5D9 IOT ENABLER pack file



Hardware Ports for this project




Hardware Part:


ADC module ADS1015 12-Bit ADC - 4 Channel with Programmable Gain Amplifier





After downloading the project file, use import function in E2 Studio to stream the project into your workspace directory.




Share on Facebook
Share on Twitter
Please reload


Please reload


I2C Tutorial for Renesas S5D9 board: Add ThreadX real time OS support. (Part 3)

February 18, 2018

Please reload


  • Grey Facebook Icon
  • Grey Twitter Icon
  • Grey Instagram Icon
  • Grey Google+ Icon
  • Grey Pinterest Icon



 Please subscribe.   So, you will get notification of the latest exciting posts. 

© 2023 by FEEDs & GRIDs. Proudly created with


My name is Mike.   This blog is made especially for you to enter my technology universe.  You will find new ideas and skills that may be helpful to you.   Feel free to leave your comments.   I am excited to hear from you.  Thank you. 

This site was designed with the
website builder. Create your website today.
Start Now