IOTA Trytes
Back The IOTA distributed ledger operates on ternary messages. These types of messages are represented by trits {1,0,1}, and which is a base3 numbering system. Within IOTA we also have the concept of a tryte which is 3 trits and which can represent 27 states. These states are then named with uppercase letters (AZ) and the "9". The message "Hello", for example, is translated into the trytes of "RBTC9D9DCD" [code]:
Input (Text)  

Input (Trytes)  
Method 

Result 
Example
The example given on the IOTA Github for the conversion of ASCII to trytes is:
2 Trytes === 1 Byte There are a total of 27 different tryte values: 9ABCDEFGHIJKLMNOPQRSTUVWXYZ // 1. We get the decimal value of an individual ASCII character 2. From the decimal value, we then derive the two tryte values by basically calculating the tryte equivalent (e.g. 100 === 19 + 3 * 27) a. The first tryte value is the decimal value modulo 27 (27 trytes) b. The second value is the remainder (decimal value  first value), divided by 27 3. The two values returned from Step 2. are then input as indices into the available values list ('9ABCDEFGHIJKLMNOPQRSTUVWXYZ') to get the correct tryte value // EXAMPLES Lets say we want to convert the ASCII character "Z". 1. 'Z' has a decimal value of 90. 2. 90 can be represented as 9 + 3 * 27. To make it simpler: a. First value: 90 modulo 27 is 9. This is now our first value b. Second value: (90  9) / 27 is 3. This is our second value. 3. Our two values are now 9 and 3. To get the tryte value now we simply insert it as indices into '9ABCDEFGHIJKLMNOPQRSTUVWXYZ' a. The first tryte value is '9ABCDEFGHIJKLMNOPQRSTUVWXYZ'[9] === "I" b. The second tryte value is '9ABCDEFGHIJKLMNOPQRSTUVWXYZ'[3] === "C" Our tryte pair is "IC" // RESULT: The ASCII char "Z" is represented as "IC" in trytes.