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Wireless (RF) Brushless Motor Controller for Personal Electric Transport
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Engineering & Manufacturing > Electrical

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The client has made the following changes to the job.


Job awarded.

May 13, 2012

Bidding period extended.

May 10, 2012

Job Description

  |  Change History >>


  • Posted: Wed, Apr 25, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:

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    a different location.

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  • Start: Immediately
  • Budget: $500 - $1,000
  • Fixed Price Job
  • Elance Escrow Protection
  • U.S. freelancers must have W9
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I am developing a small electric means of personal transportation. I need to turn a sensorless, brushless motor on and off with a single, momentary (push and hold = on, release=off) button on a wireless controller. My prototypes run on off the shelf components: wireless relay, RC servo tester, and a 20A RC ESC. I need a cohesive control solution for my demos and initial production run.

The motor runs on a 12V battery with internal battery management system, and is wound for a no load speed of 1400RPM at 12V. Constant current required for the motor driver is 20 A, burst current capacity needed is 30A for approx 10 sec. I would like the rf reciever, motor driver, and microcontroller integrated into one small PCB. I mention the microcrontroller for two reasons:

1.) I have considered integrating a few additional sensors (tilt sensor) and switches (on/off key), and it is much easier to use them as inputs to a controller than find ones rated for the full amps and insert them between the...

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Job ID: 30128280
Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

 United States  |  
Founded in 1984, we provide clients end-to-end product design services. Specializing in embedded processor applications including hardware and...
 4.0   |  $39,235 Earnings   |  1 Jobs
Bid ID: 30169856  |  Submitted: Apr 27, 2012 11:08 ET 
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