# Flora Brake Light Backpack ## Overview http://www.youtube.com/watch?v=KwNGdAZKIr8 My friend asked if I could help make him more visible on his motorcycle, so Tyler Cooper and I designed a brake light backpack that uses a Flora accelerometer to auto-detect braking behavior on a motorcycle or scooter. It also has turn signals triggered by a simple wireless module, and can still leaves plenty of room for your stuff in the pack! This is a complex project with many components! Here are some recommended prerequisite guides: - [Getting Started with FLORA](http://learn.adafruit.com/getting-started-with-flora "Link: http://learn.adafruit.com/getting-started-with-flora") - [Flora Accelerometer](http://learn.adafruit.com/flora-accelerometer) # Flora Brake Light Backpack ## Tools & Supplies ![](https://cdn-learn.adafruit.com/assets/assets/000/003/883/medium800/flora_motorcycle-backpack-01.jpg?1396803284) Bill of materials: - two strands of [12mm flat weather-resistant pixels](http://www.adafruit.com/products/738) - [Flora main board](http://www.adafruit.com/products/659) - [Flora accelerometer](http://www.adafruit.com/products/1247) - [small weather-resistant enclosure](http://www.adafruit.com/products/903) - [3xAA battery pack](http://www.adafruit.com/products/771) (not pictured) - [Tactile on/off switch with leads](http://www.adafruit.com/products/1092) - [Momentary simple RF receiver - 315MHz](https://www.adafruit.com/products/1096) - [Keyfob RF remote control - 315MHz](https://www.adafruit.com/products/1095) - [4-pin JST SM Plug + Receptacle Cable Set](http://www.adafruit.com/products/578) (not pictured) - [JST 2-pin cable](https://www.adafruit.com/products/261) (not pictured) - four 4.7K ohm resistors - [Sugru](http://www.adafruit.com/products/437) - Backpack - we're using the [Black Diamond Bullet](http://www.blackdiamondequipment.com/en-us/shop/mountain/packs/bullet-pack/) - Zipties - Gaffers tape - Velcro tape **Multimeter** You will need a good quality basic multimeter that can measure voltage and continuity. [Click here to buy a basic multimeter.](http://adafruit.com/products/71) [Click here to buy a top of the line multimeter.](http://adafruit.com/products/308) [Click here to buy a pocket multimeter.](http://adafruit.com/products/850) [Don't forget to learn how to use your multimeter too!](http://learn.adafruit.com/multimeters) ![flora_ID850_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/938/medium640/flora_ID850_LRG.jpg?1396804094) **Soldering iron** Any entry level 'all-in-one' soldering iron that you might find at your local hardware store should work. As with most things in life, you get what you pay for. Upgrading to a higher end soldering iron setup, like the [Hakko FX-888 that we stock in our store](http://adafruit.com/products/180 "Link: http://adafruit.com/products/180"), will make soldering fun and easy.
Do not use a "ColdHeat" soldering iron! They are not suitable for delicate electronics work and can damage the Flora ([see here](http://www.epemag.wimborne.co.uk/cold-soldering2.htm)). [Click here to buy our entry level adjustable 30W 110V soldering iron.](http://adafruit.com/products/180 "Link: http://adafruit.com/products/180") [Click here to upgrade to a Genuine Hakko FX-888 adjustable temperature soldering iron.](http://adafruit.com/products/303 "Link: http://adafruit.com/products/303") [Learn how to solder with tons of tutorials!](http://learn.adafruit.com/adafruit-guide-excellent-soldering "Link: http://learn.adafruit.com/adafruit-guide-excellent-soldering") ![flora_xytronics258usa_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/939/medium640/flora_xytronics258usa_LRG.jpg?1396804168) ![flora_fx888_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/940/medium640/flora_fx888_LRG.jpg?1396804174) **Solder** You will want rosin core, 60/40 solder. Good solder is a good thing. Bad solder leads to bridging and cold solder joints which can be tough to find. [Click here to buy a spool of leaded solder (recommended for beginners).](http://adafruit.com/products/145 "Link: http://adafruit.com/products/145") [Click here to buy a spool of lead-free solder.](http://adafruit.com/products/734 "Link: http://adafruit.com/products/734") ![flora_145solder_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/941/medium640/flora_145solder_LRG.jpg?1396804182) Solder wick will help correct any mistakes. [Click here to buy some.](http://adafruit.com/products/149) ![flora_wick_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/942/medium640/flora_wick_LRG.jpg?1396804190) A helping third hand tool really makes this project a joy to build. [Click here to buy a helping third hand tool.](https://www.adafruit.com/products/291) ![flora_thirdhand_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/943/medium640/flora_thirdhand_LRG.jpg?1396804200) Heat shrink tubing is the special sauce to keep your circuit out of trouble if you get caught in the rain. [Click here to buy some.](https://www.adafruit.com/products/344) ![flora_heatshrinkpack_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/944/medium640/flora_heatshrinkpack_LRG.jpg?1396804207) Sharp scissors are a must! You'll also need a large piece of cardboard, a marker and ruler, and some tailor's chalk. ![flora_6413733409_45f9ef62a4_b.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/945/medium640/flora_6413733409_45f9ef62a4_b.jpg?1396804215) Don't forget your [wire strippers](https://www.adafruit.com/products/527), [pliers](https://www.adafruit.com/products/146), and [flush snips](https://www.adafruit.com/products/152) and some [hookup wire](https://www.adafruit.com/products/290)! ![flora_csp301_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/946/medium640/flora_csp301_LRG.jpg?1396804225) ![flora_simplepliers_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/947/medium640/flora_simplepliers_LRG.jpg?1396804237) ![flora_152_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/948/medium640/flora_152_LRG.jpg?1396804247) ![flora_blackwire_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/950/medium640/flora_blackwire_LRG.jpg?1396804265) You'll use a [needle](https://www.adafruit.com/products/615) and thread to stitch the pixels to the bag. ![flora_ID615_LRG.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/949/medium640/flora_ID615_LRG.jpg?1396804256) # Flora Brake Light Backpack ## Circuit Diagram ![](https://cdn-learn.adafruit.com/assets/assets/000/003/878/medium800/flora_motorcycle-backpack-diagram.jpg?1396803141) An on/off switch with long leads connects the battery holder to a 2-pin JST connector, allowing the rider to turn the bag on and off while wearing the bag. The Flora accelerometer connects to Flora's 3.3v, SDA, SCL, and GND pins, all in a row, and will detect when the rider is braking. The pixel strand connects to VBATT (red wire), GND (blue wire), D9 (green) and D10 (yellow). VBATT also connects to +5V on the RF module. GND -\> GND and each signal pin is connected to a Flora digital input via a voltage divider comprised of two 4.7K ohm resistors to reduce the signal voltage to ~3V. The remote buttons trigger the RF modules signal pins to go HIGH. Two buttons are shown for use as turn signals, but you can connect up the remaining buttons in the same way. # Flora Brake Light Backpack ## Control Circuit **Power** To wire up the battery power supply for the circuit, tin the long leads of your on/off switch with solder. You may also wish to extend the switch leads even longer with pieces of wire. ![flora_Screen_Shot_2013-02-13_at_4.10.09_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/963/medium640/flora_Screen_Shot_2013-02-13_at_4.10.09_PM.png?1396804486) ![](https://cdn-learn.adafruit.com/assets/assets/000/003/966/medium800/flora_Screen_Shot_2013-02-13_at_4.10.47_PM.png?1396804587) Tin the leads of your 2-pin JST cable. Solder one switch lead to the JST cable's red wire, and the other switch lead to the battery pack's red wire. If your battery pack doesn't have different colored wires, use your multimeter to determine which is the positive lead. Also solder the JST cable's black wire to the battery pack's black wire. Use a 3xAA battery pack for this project. If you don't have one handy, you can bridge across one of the compartments on a 4xAA battery pack-- just solder a wire to each end. ![flora_Screen_Shot_2013-02-13_at_4.23.14_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/967/medium640/flora_Screen_Shot_2013-02-13_at_4.23.14_PM.png?1396804625) ![flora_Screen_Shot_2013-02-13_at_4.11.35_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/968/medium640/flora_Screen_Shot_2013-02-13_at_4.11.35_PM.png?1396804728) **Accelerometer** Attach the Flora accelerometer according to the circuit diagram. Notice that all four pins necessary for this i2c sensor are in a row, making wiring very convenient! Affix the Flora board and accelerometer to the battery pack with Velcro tape. Likewise between the battery pack and plastic enclosure. ![flora_Screen_Shot_2013-02-13_at_4.21.30_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/975/medium640/flora_Screen_Shot_2013-02-13_at_4.21.30_PM.png?1396805169) ![flora_Screen_Shot_2013-02-13_at_4.53.17_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/976/medium640/flora_Screen_Shot_2013-02-13_at_4.53.17_PM.png?1396805300) **RF Module** These simple wireless receiver/remote pairs are great for adding a few wireless inputs to your project, but they operate at 5V, which doesn't match Flora's 3V i/o. So build a simple voltage divider with two 4.7K ohm resistors! ![flora_Screen_Shot_2013-02-13_at_4.54.45_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/977/medium640/flora_Screen_Shot_2013-02-13_at_4.54.45_PM.png?1396805376) ![flora_Screen_Shot_2013-02-13_at_4.55.44_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/978/medium640/flora_Screen_Shot_2013-02-13_at_4.55.44_PM.png?1396805441) To attach to Flora, twist the resistor leads together and solder to a digital input pin. Repeat with more pairs of resistors for each button on your remote or as many as you'd like to use. One resistor in each pair will be soldered to ground, and the other will connect to the RF module's output. [Female jumper wires](https://www.adafruit.com/products/825) can come in handy for attaching to the RF module's header pins. The pin marked +5V gets connected to VBATT on Flora, and GND goes go GND. ![flora_Screen_Shot_2013-02-13_at_4.56.23_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/979/medium640/flora_Screen_Shot_2013-02-13_at_4.56.23_PM.png?1396805563) ![flora_Screen_Shot_2013-02-13_at_4.57.39_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/980/medium640/flora_Screen_Shot_2013-02-13_at_4.57.39_PM.png?1396805705) **Pixel connector** Plug an extender onto the input side of a strand of weather-resistant LED pixels. Run the connector cable through a small hole bored in the plastic weather-resistant enclosure. ![flora_Screen_Shot_2013-02-13_at_4.59.45_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/981/medium640/flora_Screen_Shot_2013-02-13_at_4.59.45_PM.png?1396805847) ![flora_Screen_Shot_2013-02-13_at_5.00.47_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/982/medium640/flora_Screen_Shot_2013-02-13_at_5.00.47_PM.png?1396805961) Use colorful heatshrink tubing to mark the pixel connectors wires, corresponding to the colord wires in the pixel strand. You could also use pieces of taped marked with a letter-- this makes it a lot easier to attach the wires to the Flora correctly. ![flora_Screen_Shot_2013-02-13_at_5.01.07_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/983/medium640/flora_Screen_Shot_2013-02-13_at_5.01.07_PM.png?1396806115) Connect the four pixel connector wires as per this diagram - red to VBATT, blue to GND, yellow to D10 and green to D9. ![flora_Screen_Shot_2013-02-13_at_5.03.53_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/984/medium640/flora_Screen_Shot_2013-02-13_at_5.03.53_PM.png?1396806161) ![flora_Screen_Shot_2013-02-13_at_5.05.29_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/985/medium640/flora_Screen_Shot_2013-02-13_at_5.05.29_PM.png?1396806257) Switch These tactile on/off switches are perfect for toggling power on our backpack, but the switch isn't inherently waterproof. Using a bit of plastic to prevent the button from being clogged, wrap the switch in Sugru and let it cure for 24 hours. Wear gloves to prevent fingerprint marks. ![flora_Screen_Shot_2013-02-13_at_5.07.01_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/986/medium640/flora_Screen_Shot_2013-02-13_at_5.07.01_PM.png?1396806373) ![flora_Screen_Shot_2013-02-13_at_5.08.22_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/987/medium640/flora_Screen_Shot_2013-02-13_at_5.08.22_PM.png?1396806473) ![flora_Screen_Shot_2013-02-13_at_5.08.45_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/989/medium640/flora_Screen_Shot_2013-02-13_at_5.08.45_PM.png?1396806566) ![](https://cdn-learn.adafruit.com/assets/assets/000/003/934/medium800/flora_motorcycle-backpack-09.jpg?1396804122) Use a ziptie for strain relief on any wires exiting the enclosure. ![flora_motorcycle-backpack-07.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/935/medium640/flora_motorcycle-backpack-07.jpg?1396804148) For maximum range between the RF remote/receiver pair, uncoil the receiver's antenna wire so it runs along the outer edge of the enclosure. ![flora_Screen_Shot_2013-02-13_at_5.33.33_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/998/medium640/flora_Screen_Shot_2013-02-13_at_5.33.33_PM.png?1396807158) More Sugrue helps waterproof the hole in the enclosure. ![flora_Screen_Shot_2013-02-13_at_5.24.29_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/004/003/medium640/flora_Screen_Shot_2013-02-13_at_5.24.29_PM.png?1396807467) # Flora Brake Light Backpack ## LED Pixels Mark out a double diamond design with tailor's chalk on your backpack. ![flora_motorcycle-backpack-02.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/879/medium640/flora_motorcycle-backpack-02.jpg?1396803171) Transfer that sketch to a piece of cardboard using a ruler and marker. Mark where each LED pixel will go. ![flora_motorcycle-backpack-03.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/880/medium640/flora_motorcycle-backpack-03.jpg?1396803199) ![flora_motorcycle-backpack-04.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/881/medium640/flora_motorcycle-backpack-04.jpg?1396803227) Punch holes in the cardboard with an awl. ![flora_motorcycle-backpack-05.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/882/medium640/flora_motorcycle-backpack-05.jpg?1396803257) Install your pixels into the cardboard jig. ![flora_Screen_Shot_2013-02-13_at_6.08.30_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/004/004/medium640/flora_Screen_Shot_2013-02-13_at_6.08.30_PM.png?1396807540) text ![flora_motorcycle-backpack-10.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/884/medium640/flora_motorcycle-backpack-10.jpg?1396803316) Since the design is longer than 1 strand (25 pixels-- our design is 36), solder on or plug in another strand of pixels. ![flora_motorcycle-backpack-08.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/885/medium640/flora_motorcycle-backpack-08.jpg?1396803342) Use zipties to cinch up the wires between pixels so the design has some structure. ![flora_motorcycle-backpack-10.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/917/medium640/flora_motorcycle-backpack-10.jpg?1396803742) You can also use tape to bridge across the backs of the pixels. Remove the pixels from the jig. ![flora_motorcycle-backpack-11.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/918/medium640/flora_motorcycle-backpack-11.jpg?1396803774) Follow the tailor's chalk markings on your backpack and install the LED pixels by cutting a hole and heat-sealing the nylon edge. ![flora_motorcycle-backpack-12.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/919/medium640/flora_motorcycle-backpack-12.jpg?1396803800) Attach the pixels by stitching the wires to the front surface of the bag. Knot and cut the thread at each junction so that if one stitch comes undone, the rest of the design isn't compromised by an unraveling thread. ![flora_motorcycle-backpack-14.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/920/medium640/flora_motorcycle-backpack-14.jpg?1396803820) ![](https://cdn-learn.adafruit.com/assets/assets/000/003/921/medium800/flora_motorcycle-backpack-15.jpg?1396803849) ![](https://cdn-learn.adafruit.com/assets/assets/000/003/992/medium800/flora_motorcycle-backpack-diagram-modified.jpg?1396806693) My install didn't go exactly as planned, and my pixel design had to be compromised. I adjusted my diagram so I'd know which pixels were which when programming animations. It's challenging to install so many pixels inside such a small space, but it was comforting knowing I could fix any layout problems later, in the code. Decide where you'd like your power toggle switch to go, make a slice in the bag for the switch to come through, heat seal the nylon, then stitch the switch in place! ![flora_Screen_Shot_2013-02-13_at_5.25.33_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/994/medium640/flora_Screen_Shot_2013-02-13_at_5.25.33_PM.png?1396806797) ![flora_Screen_Shot_2013-02-13_at_5.26.24_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/995/medium640/flora_Screen_Shot_2013-02-13_at_5.26.24_PM.png?1396806885) Prop up the bag and connect the USB cable (keeping the battery power off) for programming. ![flora_Screen_Shot_2013-02-13_at_5.31.22_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/996/medium640/flora_Screen_Shot_2013-02-13_at_5.31.22_PM.png?1396806972) ![flora_Screen_Shot_2013-02-13_at_5.31.13_PM.png](https://cdn-learn.adafruit.com/assets/assets/000/003/999/medium640/flora_Screen_Shot_2013-02-13_at_5.31.13_PM.png?1396807069) # Flora Brake Light Backpack ## The Code Danger: When we first starting working on this project, I thought that the code would be the easy part. As I started working on the code, I quickly realized there are a lot of external factors that can give you erratic results from the accelerometer. Factors such as quick acceleration, bumpy roads, or slow braking gave me results that I wasn't prepared for. Overall, though, this was a lot of fun to code, and it is a project that I will continue to tinker with until I am happy with the results. Here is the code that I came up with, and how it works. You'll need to download and install the [Adafruit\_LSM303 library](https://github.com/adafruit/Adafruit_LSM303) - [we have a tutorial on installing arduino libraries here](http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use) Select Download Project Zip to get the **Flora\_Brakelight\_Backpack.ino** file. https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/Flora/Flora_Brakelight_Backpack/Flora_Brakelight_Backpack/Flora_Brakelight_Backpack.ino ## Code Walkthrough ``` #include <Wire.h> #include <Adafruit_LSM303.h> #include <SPI.h> #include <Adafruit_WS2801.h> Adafruit_LSM303 lsm; #define BRAKETHRESHOLD 350 #define BRAKETIMETHRESHOLD 200 ``` The most important part of the code is the LSM303 library, the WS2801 library, and the `BRAKETHRESHOLD`, and `BRAKETIMETHRESHOLD` values. You will need to install the LSM303 library, [which can be found here](https://github.com/adafruit/Adafruit_LSM303DLHC), and the WS2801 library, [which can be found here](https://github.com/adafruit/Adafruit-WS2801-Library). The `BRAKETHRESHOLD` value will need to be tweaked to your liking. This value looks at the amount of force the accelerometer measures before it considers it worth investigating further. Similarly, the `BRAKETIMETHRESHOLD` value is the amount of time that the force exists before it will trigger the brake lights. This is an important part of the code, as it allows us to ignore things like big bumps in the road. From there, the code is quite simple. If you press and hold the C button on the remote, the left blinker will activate on the backpack. If you press and hold the D button on the remote, the right blinker will activate on the backpack. Release either button to stop blinking. You could easily modify the sketch to press the button to turn on, and press again to turn off....or simply use [the toggle type RF receiver which you can buy here](https://www.adafruit.com/products/1097). # Flora Brake Light Backpack ## Wear it! ![](https://cdn-learn.adafruit.com/assets/assets/000/004/000/medium800/flora_Screen_Shot_2013-02-13_at_5.31.22_PM.png?1396807244) ![](https://cdn-learn.adafruit.com/assets/assets/000/004/002/medium800/flora_Screen_Shot_2013-02-13_at_5.44.18_PM.png?1396807369) ![](https://cdn-learn.adafruit.com/assets/assets/000/004/001/medium800/flora_Screen_Shot_2013-02-13_at_5.43.21_PM.png?1396807299) ## Featured Products ### FLORA - Wearable electronic platform: Arduino-compatible [FLORA - Wearable electronic platform: Arduino-compatible](https://www.adafruit.com/product/659) FLORA is Adafruit's fully-featured wearable electronics platform. It's a round, sewable, Arduino-compatible microcontroller designed to empower amazing wearables projects.FLORA comes with Adafruit's support, [tutorials and...](http://learn.adafruit.com/category/flora) In Stock [Buy Now](https://www.adafruit.com/product/659) [Related Guides to the Product](https://learn.adafruit.com/products/659/guides) ### FLORA Accelerometer/Compass Sensor - LSM303 [FLORA Accelerometer/Compass Sensor - LSM303](https://www.adafruit.com/product/1247) Add motion and direction sensing to your wearable FLORA project with this high precision 3-axis Accelerometer+Compass sensor. Inside are two sensors, one is a classic 3-axis accelerometer, which can tell you which direction is down towards the Earth (by measuring gravity) or how fast the board... No Longer Stocked [Buy Now](https://www.adafruit.com/product/1247) [Related Guides to the Product](https://learn.adafruit.com/products/1247/guides) ### 12mm Diffused Flat Digital RGB LED Pixels (Strand of 25) [12mm Diffused Flat Digital RGB LED Pixels (Strand of 25)](https://www.adafruit.com/product/738) RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each RGB LED and controller chip is molded into a 'dot' of silicone. The dots are weatherproof and rugged. There are four flanges molded in so that you can 'push' them into a 12mm drill hole in... No Longer Stocked [Buy Now](https://www.adafruit.com/product/738) [Related Guides to the Product](https://learn.adafruit.com/products/738/guides) ### 4 x AA Battery Holder with On/Off Switch [4 x AA Battery Holder with On/Off Switch](https://www.adafruit.com/product/830) Make a nice portable power pack with this 4 x AA battery holder. It fits any alkaline or rechargeable AA batteries in series. There's a snap on cover and an on/off switch which can be handy when wiring to something without a switch. **New**! We now have 0.1" headers... In Stock [Buy Now](https://www.adafruit.com/product/830) [Related Guides to the Product](https://learn.adafruit.com/products/830/guides) ### Simple RF M4 Receiver - 315MHz Momentary Type [Simple RF M4 Receiver - 315MHz Momentary Type](https://www.adafruit.com/product/1096) These Simple RF receivers are the easiest way possible to add wireless control, painlessly! There's no programming, configuring or addressing - simply power the receiver with ~5 VDC and press the buttons on our matching RF keyfob remote. When the A button is pressed, it activates the first... In Stock [Buy Now](https://www.adafruit.com/product/1096) [Related Guides to the Product](https://learn.adafruit.com/products/1096/guides) ### Keyfob 4-Button RF Remote Control - 315MHz [Keyfob 4-Button RF Remote Control - 315MHz](https://www.adafruit.com/product/1095) This 4-button keyfob remote goes with [our three basic 315MHz RF receiver modules](http://adafruit.com/category/112). It will work with all of them, sending out one of four commands that match up with the four outputs. Its small and light weight and will work up to 25 feet away... In Stock [Buy Now](https://www.adafruit.com/product/1095) [Related Guides to the Product](https://learn.adafruit.com/products/1095/guides) ### Tactile On/Off Switch with Leads [Tactile On/Off Switch with Leads](https://www.adafruit.com/product/1092) Squeeze once to turn on, squeeze again to turn off! This clicky switch makes a great power switch or mode toggler. We like this switch because it's easy to embed in a seam for easily powering up/off wearable and fabric projects. Can handle up to 14V and 2 Amps! This is a really satisfying... In Stock [Buy Now](https://www.adafruit.com/product/1092) [Related Guides to the Product](https://learn.adafruit.com/products/1092/guides) ### Small Plastic Project Enclosure - Weatherproof with Clear Top [Small Plastic Project Enclosure - Weatherproof with Clear Top](https://www.adafruit.com/product/903) Store your project safe and sound in this nice weatherproof box with a clear top. We picked up this box because we like the machinable ABS plastic body and tough clear polycarbonate cover, the built in weatherproof gasket seal, and the easy-open screws that can be taken apart as many times as... In Stock [Buy Now](https://www.adafruit.com/product/903) [Related Guides to the Product](https://learn.adafruit.com/products/903/guides) ## Related Guides - [Adafruit Arduino Selection Guide](https://learn.adafruit.com/adafruit-arduino-selection-guide.md) - [Getting Started with FLORA](https://learn.adafruit.com/getting-started-with-flora.md) - [FLORA Sensors](https://learn.adafruit.com/flora-sensors.md) - [Flora-Powered TARDIS Costume (for Dogs!)](https://learn.adafruit.com/wearable-flora-powered-tardis-costume-dogs.md) - [Sunscreen Reminder Hat](https://learn.adafruit.com/sunscreen-reminder-hat.md) - [NeoPixel Ring Clock](https://learn.adafruit.com/neopixel-ring-clock.md) - [FLORA & Codebender](https://learn.adafruit.com/flora-and-codebender.md) - [How to Find Hidden COM Ports](https://learn.adafruit.com/how-to-find-hidden-com-ports.md) - [EEG Costume Cap](https://learn.adafruit.com/eeg-costume-cap.md) - [Light-Up Angler Fish Embroidery](https://learn.adafruit.com/light-up-angler-fish-embroidery.md) - [Fiber Optic Pixie Skirt](https://learn.adafruit.com/fiber-optic-pixie-princess-skirt.md) - [Conductive Thread](https://learn.adafruit.com/conductive-thread.md) - [Mailbox Notification Service](https://learn.adafruit.com/mailbox-notification-service.md) - [FLORA and GEMMA ICSP](https://learn.adafruit.com/flora-and-gemma-isp.md) - [Adafruit Flora Bluefruit LE](https://learn.adafruit.com/adafruit-flora-bluefruit-le.md)