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kadish-ethan_alexia_scott-1609-9-11-2016-1-40-46-pm-2048x1536Try not to get anything in your eye as you hear this moving story of a teen helping an injured friend communicate with the world again.

Read more on MAKE

The post 14 Year Old Builds Communication Device for Brain-Injured Friend appeared first on Make: DIY Projects and Ideas for Makers.


First impression on the ESP8266 serial-to-WiFi module

arduino, ESP8266, interface, serial-to-WiFi Commenti disabilitati su First impression on the ESP8266 serial-to-WiFi module 



Ray Wang has been experimenting with the ESP8266 Serial-to-WiFi module, which has gained much hype recently. “The module is very compact, easy to interface with, and inexpensive. I wrote an Arduino program to show how to use the Arduino to communicate with the WiFi module and set up a very simple web server.” Check out the blog post at RaysHobby.

First impression on the ESP8266 serial-to-WiFi module - [Link]

I'm lowering the top BTW

The engineering in the boat the cooling fan circulates air blowing it out between the motors. This wee fan moves lots of air on 7.4 Volts

Arduino Inputs from RX

Ch3   Throttle                       Arduino pin 4
Ch1   Steering                       Arduino pin 5
Ch5   Throttle limit                Arduino pin 6
Ch2   Steering on Throttle       Arduino pin 7

Arduino analogue inputs

Anin 0  Ambient temp sensor                      Anin 1  Hall effect current sensor

Arduino outputs

Pin 8    Left jet
Pin 9    Right jet
Pin 10  Cooling fan speed
Pin 11  Steering

Mixing of the outputs

  int SterringOnThrottle = (long)map((int)ch4v, 1500, 1100, 0, 1000); 
  if(SterringOnThrottle < 0) SterringOnThrottle = 0;
  SteeringBias = (long)map((int)ch3v - (int)ch3vWOZ, 0, 1000, 0, SterringOnThrottle); 
  int SteeringAngle = (long)map((int)ch3v, 1100, 1900, 1000, 2000);
  //Limit fan speed for 11.1 V
  FanSpeed = map(FanSpeed, 1100, 1900, 1000, 1500);
  //Update the outputs
  Servo1.writeMicroseconds((int)Throttle - (int)SteeringBias);
  Servo2.writeMicroseconds((int)Throttle + (int)SteeringBias);

The cooling system

The fan is a 27 mm EDF should keep the air moving with a 10A ESC

There is a big heatsink and fan on the 30 AMp ESC's


Arduino Percussion Car

amarok, arduino, filika, gallery, interface, istanbul, music, percussion Commenti disabilitati su Arduino Percussion Car 

The user [selcukartut] sent us a project full integrated with Arduino boards. Filika (Istanbul) designed and produced an Interactive Percussion Playing Car for Volkswagen’s breathtaking pickup Amarok. Several sensors were implemented on the board, so that the participants were able to trigger percussion sounds via tapping their hands on the car.

Technically speaking, there were two types of sensors to gather user interaction data. Force Resistive Sensors were placed on the front panel and piezzo sensors were placed on the sides of the car’s body. Received user interaction was mapped onto a code via customized Arduino Board. Arduino code was commuicating with a sound patch that was built in MaxMSP/Jitter, and finally delivered into Ableton Live as Midi Data. In sum when a person taps onto a sensor that hides under the car’s surface, that interaction was turning into a percussion sound. There were tons of cables, sawing, soldering, coding and etc…

On the [website] there are some videos that show the project in action. Unfortunately all the text are in Turkish, we hope for an English, more international, version.


[Timothy Zandelin], a 15 years old Arduino enthusiast has sent us his first Arduino Project, an arcade interface based on Arduino Leonardo.

The cabinet is made of 4mm HDF and were laser cut at “Fabriken” in Malmö. The red arcade sign in the top is produced in 5mm translucent acrylic. All design and construction drawings were made in Illustrator. I used an Arduino Leonardo to connect the joystick, buttons and the LED light.  The game installed, Superstar Chefs, is an old game developed by my dad’s cousins.

On the other hand, Timothy also built his own prototyping board to learn about how to use different inputs and outputs.

My prototype board was made with Fritzing.

It includes:

- 6 green 3mm LED’s,

- 11 resistors (6 330 ohm, 4 10K ohm and one 100 ohm),

-1 dip8 socket with an ATtiny45,

- 1 potentiometer,

- 4 pushbutton and header sockets.

I created this prototype board to easily get started with Arduino.

Timothy, welcome on board!

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