Difference between revisions of "Wireless Modem"
Negamartin (Talk | contribs) (→Modem as a Peripheral) |
m (Changed the first example to use the Modem API rather than the Rednet API) |
||
| Line 27: | Line 27: | ||
}} | }} | ||
| − | == Example ( | + | == Example (Modem API)== |
* Place 2 computers and add modems to them by clicking the right mouse button while sneaking. | * Place 2 computers and add modems to them by clicking the right mouse button while sneaking. | ||
* Access them, and start Lua. | * Access them, and start Lua. | ||
| − | * Once Lua has started, | + | * Once Lua has started, wrap your modem using peripheral.wrap() (something like "modem = peripheral.wrap("<side of modem>") |
| + | * Type "[[modem_(API)|modem.open]] (<A modem port number, anything from 1 to 65535>)" on one computer. | ||
* Check if there exists a connection: a dim, red light should be found on the modem. | * Check if there exists a connection: a dim, red light should be found on the modem. | ||
| − | * | + | * Now, type "[[modem_(API)|modem.transmit]] (<Same number as above>, <Also the same number>, 'Your message')" on the other computer. This should send your message to all computers connected. |
| − | + | ||
* Opening the first computer should show the message written on the second computer. | * Opening the first computer should show the message written on the second computer. | ||
Revision as of 20:11, 5 April 2013
| This page needs some serious TLC, stat! Please help us by cleaning it, fixing it up, or sparing it some love.
(Reason: The behaviour of Rednet has changed as of 1.5 - please consider updating this page with information. (Please don't add prerelease info!)) |
- This page is for the Modem blocks. For the modem API, see Modem (API)
Modem |  |
| Item ID | 4094 |
| Damage Value | 1 |
| Peripheral? | Yes- Modem (API) |
Modems are blocks which can be used to wirelessly transfer data between computers and turtles, using the Rednet API or the Modem API. To place a modem on a side of a computer, right-click to place the modem while sneaking.
It is also possible to turn the modem on and off by typing "rednet.open ( side )" to open and "rednet.close ( side )" to close.
Modems can send messages to other modems located up to 64 meters away, or 16 meters during a thunderstorm. As of 1.4 Modem range is increased with higher altitudes. If there is no thunderstorm, the range will always be higher than 64, and at max altitude you would have a range of 384 meters.
In 1.4 and 1.41 there is a miscalculation that causes the range to only be 381 meters at max altitude.
Recipe
Example (Modem API)
- Place 2 computers and add modems to them by clicking the right mouse button while sneaking.
- Access them, and start Lua.
- Once Lua has started, wrap your modem using peripheral.wrap() (something like "modem = peripheral.wrap("<side of modem>")
- Type "modem.open (<A modem port number, anything from 1 to 65535>)" on one computer.
- Check if there exists a connection: a dim, red light should be found on the modem.
- Now, type "modem.transmit (<Same number as above>, <Also the same number>, 'Your message')" on the other computer. This should send your message to all computers connected.
- Opening the first computer should show the message written on the second computer.
Modem as a Peripheral
To use a Modem as a peripheral, you need to either call a method directly using peripheral.call(), or, wrap the modem using the Peripheral API. Wrapped modems provide all functions listed in the Modem API.
For this example, we have a Modem connected to the top of our Computer, we are going to open channel 5:
-- Immediately invoke a method without wrapping
peripheral.call("top", "open",5)
-- You can also "wrap" the peripheral side to a variable:
local modem = peripheral.wrap("top")
modem.open(5)
