0

Simple DIY Sip-and-Puff Radio-Controlled Toys

Great low-cost, open-source “sip-and-puff” interface to control toys for people with and without limited mobility! Via Bobpardiso.com

Sip-and-puff is one of many ways someone can control a device without having to use their hands, and is a useful method for some people with certain disabilities. A puff is blowing into the tube, and a sip is sucking from the tube. In both cases the required pressure is tuned to the user for ease of use and can be very light to lessen fatigue. There are many sip-and-puff controls on the market for various things, but they can be expensive or difficult to customize. What I’m showing here is an extremely affordable, simple to build, and fully customizable sip-and-puff setup used to control two different remote control toys that have very different controls.

Detecting the sips and puffs is done with a pressure sensor. For this project I chose the MPXV7007G: http://cache.freescale.com/files/sensors/doc/data_sheet/MPXV7007.pdf

This sensor takes -1 to 1 psi as input and maps it to 0.5 to 4.5V as output if you power it at 5V. This nicely sets the full scale as a strong sip to a strong puff and still allows specifically detecting soft sips and puffs. To make it easier to prototype with I soldered on a 4 pin male header and then added hot glue for mechanical support as pictured below.

Learn more and Check out Bob Paradiso’s Youtube page


Join 5,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — A journey through Shenzhen, the electronics manufacturing hub of the world

Wearables — Ice, ice baby

Electronics — Current limiting!

Biohacking — Grindfest 2018

Python for Microcontrollers — CRICKITs are coming!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.