# Remote Effects Trigger Box

## Overview

https://youtu.be/jsJoDGTjRpM

https://youtu.be/77kWqPlrNmc

![](https://cdn-learn.adafruit.com/assets/assets/000/041/225/medium800/feather_rFX_remoteFX_2k.jpg?1493224968)

You can do almost anything with the right combination of Feather microcontroller and FeatherWing! From blasting&nbsp;on a fan to opening a trap door, from making a playing card levitate to lighting up hundreds of NeoPixels, from cuing music and sound effects to detonating a smoke bomb, it's all possible.

But what about triggering these events remotely at long distances, in a cell-phone (and human) dense environment, such as a theatre or festival? Beginners often assume they can use WiFi or Bluetooth to find that once the theater is full of patrons, signals get slow and spotty. Or maybe you're outdoors at an arts festival? Good luck getting a WiFi signal working out there!

This is where sub-GHz transceivers shine. As long as you aren't trying to transmit a tons of data, you don't have to share any spectrum with 2.4GHz devices and the range is great. 900Mhz (433Mhz in ITU Europe) RF transceivers come in to save the day!

Using Feather Packet Radio boards (RFM69HCW or RFM9X LoRa), you can send encrypted commands at great distances -- 500 meters line of sight for RFM69HCW, and 2 kilometers for LoRa! -- with &nbsp;no worries about pairing, scanning, and so on. Just a good, old fashioned, magical, invisible wire that connects all of your devices easily!

![](https://cdn-learn.adafruit.com/assets/assets/000/041/364/medium800/feather_01_full.jpg?1493478443)

This guide shows how you can build a versatile&nbsp;controller to take on a nearly limitless variety of remote triggering needs. You'll use&nbsp;a 16-button Trellis pad to&nbsp;send commands, rotary encoder knob to select&nbsp;effects banks, and an OLED display to keep it all straight!&nbsp;

With the Feather's built-in battery charging circuitry, you can keep the LiPoly battery topped off and ready to go!

## Parts and Materials
The essential parts&nbsp;for your controller are:

- Packet radio Feather microcontroller and antenna as the brains of the transmitter. Your choice of 900MHz for US, 433MHz for ITU Europe, in either M0 or 32u4 processor variant. The RFM69HCW radios are the easiest to set up and a bit less expensive, while the LoRa boards are slightly more involved to set up, but longer range
- Trellis driver PCB, with silicone keypad for sixteen&nbsp;lighted buttons
- OLED display FeatherWing
- Rotary encoder for menu selection

See the right sidebar for specific product links.

On the&nbsp;effects side of things, you'll want additional Packet radio Feathers of the identical frequency and flavor (RFM69HCW **or** LoRa, you can't mix and match!). These can have any FeatherWing or additional circuits connected to them, depending on what you need to trigger.&nbsp;

Here are some examples:

- [Music Maker](https://www.adafruit.com/product/3436) for remote MP3 playback
- [Power Relay](https://www.adafruit.com/product/3191) to trigger high power, AC devices, such as motors, lamps, and fans
- [DC Motor + Stepper](https://www.adafruit.com/product/2927)&nbsp;for actuating small DC motors or precisely position things with steppers
- [8-Channel PWM/Servo](https://www.adafruit.com/product/2928)&nbsp;to rotate hobby servos (small robot arms...?) or light up lots of standard LEDs&nbsp;
- [NeoPixels](https://www.adafruit.com/product/2945)&nbsp;on a 4x8 RGB LED board, or by stringing as many strips of externally powered NeoPixels as you like!

![feather_lampA.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/226/medium640/feather_lampA.jpg?1493227010)

![feather_stepperA.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/227/medium640/feather_stepperA.jpg?1493227026)

![feather_radioA.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/228/medium640/feather_radioA.jpg?1493227034)

![feather_relayFW.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/229/medium640/feather_relayFW.jpg?1493227219)

![feather_mp3FW.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/231/medium640/feather_mp3FW.jpg?1493227316)

In addition to the parts listed on the sidebar of this guide, you'll also need six screws to fasten the enclosure:

- 4ea. [#6-32&nbsp;1-1/4" hex drive rounded head screws](https://www.mcmaster.com/#92949a160/=17d7vxn)
- 2ea. [#6-32 1-1/8" hex drive rounded head screws](https://www.mcmaster.com/#92949a860/=17d7wbg)

And, if you're 3D printing the enclosure, you'll want some PLA filament for that, such as:

- [1.75mm PLA white](https://www.adafruit.com/product/2067)
- [1.75mm PLA black](https://www.adafruit.com/product/2060)
- [1.75mm PLA red](https://www.adafruit.com/product/2450)
- [1.75mm PLA/PHA blue](https://www.adafruit.com/product/2146)

![feather_2067-00.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/233/medium640/feather_2067-00.jpg?1493227609)

![feather_2060-01.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/234/medium640/feather_2060-01.jpg?1493227618)

![feather_2450-01.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/235/medium640/feather_2450-01.jpg?1493227633)

![feather_2146-01.jpg](https://cdn-learn.adafruit.com/assets/assets/000/041/236/medium640/feather_2146-01.jpg?1493227661)

![feather_Screen_Shot_2017-04-26_at_9.27.00_AM.png](https://cdn-learn.adafruit.com/assets/assets/000/041/237/medium640/feather_Screen_Shot_2017-04-26_at_9.27.00_AM.png?1493227675)

- [Next Page](https://learn.adafruit.com/remote-effects-trigger/overview.md)

## Featured Products

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Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of **2500mAh** for a total of about 10 Wh. If you need a smaller battery, <a...></a...>

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This PCB is...

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So squishy! These silicone elastomer keypads are just waiting for your fingers to press them. Go ahead, squish all you like! (They're durable and easy to clean, just wipe with mild soap and water) These are just like the light up rubber buttons you find on stuff like appliances and tools,...

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