SPI Signal Reverse Engineering
Just as we did for the I2C signal, we’re going to pull a SPI signal apart using an oscilloscope. Because…
Education Shield Tutorials
The Arduino SPI Library
Now that we have a firm understanding of how we need to configure the signals to communicate with a SPI…
SPI Signals
This module provides detail on the SPI signals, including the different clock polarities and phases. Objectives Understand the differences between…
SPI Basics
This module begins our discussion of SPI basics by introducing the theory, structure and signalling of the SPI serial communications…
MCP7940 and AT30TS750A Tutorial: Time and Temp and Error Checking
The I2C and SPI Education Shield features two devices on the I2C bus, the MCP7940 and AT30TS750A chips, a real…
MCP7940 Tutorial 04: Battery Backup
With the clock set and the oscillator adjusted to allow for accurate time keeping, we need to make sure we…
MCP7940 Tutorial 03: Oscillator Trimming
Now that we know how to get data in and out, we’ll get a little more into the advanced waters…
MCP7940 Tutorial 02: Setting and Getting Time
[mathjax][/mathjax]In this MCP7940 tutorial, we’ll start to explore the MCP7940 by setting the time and retrieving the time. We’ll also…
MCP7940 Tutorial 01: Functionality Overview
Welcome to the MCP7940 Real-Time Clock/Calendar from Microchip. This module will cover the functionality of the chip based on the…
Changing the I2C Library…
Unfortunately, now that we’ve gotten entirely familiar with the Wire Library, we’re going to abandon it in favor of the…
