Why does the SPI library not work on an Attiny?...

Why does the SPI library not work on an Attiny?.. I found some code on gethub to get around this but... Can anyone point me to a good reference (guide, reference book, etc) for programming that might answer these strange truths that I am oblivious to. My background is Mechanical Engineering and Ardu...
By: hydronics

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Harmonic Price Patterns

Now that you've got the basic chart patterns down, it's time to move on and add some more advanced tools to your trading arsenal.

In this lesson, we'll be looking at harmonic price patterns. These bad boys may be a little harder to grasp but once you spot these setups, it can lead to some very nice profits!

The whole idea of these patterns is that they help people spot possible retracements of recent trends. In fact, we'll make use of other tools we've already covered - the Fibonacci retracement and extensions!

Combining these wonderful tools to spot these harmonic patterns, we'll be able to distinguish possible areas for a continuation of the overall trend.




In this lesson, we're going to discuss the following Harmonic Price Patterns:
ABCD Pattern
Three-Drive Pattern
Gartley Pattern
Crab Pattern
Bat Pattern
Butterfly Pattern
Phew! That's quite a lot to cover!

But don't you worry... Once you get the hang of things, it'll be as easy as 1-2-3! We'll start off with the more basic ABCD and three-drive patterns before moving on to Gartley and the animals.

After learning about them, we'll take a look at the tools you need in order to trade these patterns successfully.

For all these harmonic patterns, the point is to wait for the entire pattern to complete before taking any short or long trades. You'll see what we're talking about later on so let's get started!

Types of Charts

Let's take a look at the three most popular types of charts:

Line chart
Bar chart
Candlestick chart
Now, we'll explain each of the charts, and let you know what you should know about each of them.

Line Charts

A simple line chart draws a line from one closing price to the next closing price. When strung together with a line, we can see the general price movement of a currency pair over a period of time.

Here is an example of a line chart for EUR/USD:



Bar Charts

A bar chart is a little more complex. It shows the opening and closing prices, as well as the highs and lows. The bottom of the vertical bar indicates the lowest traded price for that time period, while the top of the bar indicates the highest price paid.

The vertical bar itself indicates the currency pair's trading range as a whole.

The horizontal hash on the left side of the bar is the opening price, and the right-side horizontal hash is the closing price.

Here is an example of a bar chart for EUR/USD:



Take note, throughout our lessons, you will see the word "bar" in reference to a single piece of data on a chart.

A bar is simply one segment of time, whether it is one day, one week, or one hour. When you see the word 'bar' going forward, be sure to understand what time frame it is referencing.

Bar charts are also called "OHLC" charts, because they indicate the Open, the High, the Low, and the Close for that particular currency. Here's an example of a price bar:


Open: The little horizontal line on the left is the opening price
High: The top of the vertical line defines the highest price of the time period
Low: The bottom of the vertical line defines the lowest price of the time period
Close: The little horizontal line on the right is the closing price