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update seis challenge

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This commit is contained in:
Michael Elliot Braun 2016-05-11 15:10:07 -07:00
parent 90a8bdcea1
commit 993952cbe9
1 changed files with 2 additions and 2 deletions
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docs/lessons/seismograph/challenge.md
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@ -32,12 +32,12 @@ basic.forever(() => {
## 2.
Let's measure `acceleration (mg)` and then `send number`. `Acceleration` is measured in **milli-gravities**, so a value of -1000 is equivalent to -1g or -9.81m/s^2. We will be able to get the acceleration value (g-force), in the specified "x" dimension. `Send number` will broadcast a number data packet to other micro:bits connected via radio.
We need add send number block found in the Radio drawer. We will attach send number to acceleration.
We need add send number block found in the Radio drawer. We will attach send number to acceleration and subtract the gravity from acceleration strength.
Your finished code will look like this:
```blocks
radio.sendNumber(input.acceleration(Dimension.X));
radio.sendNumber(input.acceleration(Dimension.Strength) - 1023);
```
## 3.