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SparkFun BOB-09118 Opto-Isolator Breakout

SparkFun BOB-09118 Opto-Isolator Breakout
SparkFun BOB-09118 Opto-Isolator BreakoutSparkFun BOB-09118 Opto-Isolator BreakoutSparkFun BOB-09118 Opto-Isolator Breakout
SparkFun BOB-09118 Opto-Isolator BreakoutSparkFun BOB-09118 Opto-Isolator Breakout
Our Price:  £4.50(Inc. 20% VAT)(£3.75 Exc. VAT)Earn 4 Loyalty Points

SKU:  PPBOB-09118
Part Number:  BOB-09118
Brand:  SparkFun

Available Now:  

4 in stock, immediate despatch
Up to 59 More Available within 3-5 Working days
  (2 Reviews)

SparkFun BOB-09118 Opto-Isolator Breakout

This is a board designed for opto-isolation. This board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This IC has two LEDs and two photodiodes built-in. This allows the low-voltage side to control a high voltage side.

We often use this board to allow a microcontroller control servos or other motors that use a higher voltage than the TTL logic on the (3.3V or 5V) micro, and may cause electromagnetic interferance with our system as the motors turn on and off. This board will isolate the systems, creating a type of electrical noise barrier between devices.

This breakout board uses the ILD213T optoisolator and discrete transistors to correct the logic. Comes with two channels. Great for use in noisy circuits where signal lines require electrical isolation.

A normal LED opto-isolator will invert the logic of a signal. We threw some transistors on this compact board to correct the inversion. What you put into the IN pins, will be replicated on the the OUT pins, but at the higher voltage (HV).


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Customer Reviews
Average Rating (2 Reviews):  
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Excellent product
Friday, 30 August 2013  |  Tim

I purchased this product to isolate a 12v automotive input from a 5v Arduino. This works perfectly with the 12v on the low side, and the Arduino on the high side, technically the opposite way round to the design, but it works fine.My only issue is the

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3 of 3 people found this review helpful.

small compact unit
Wednesday, 13 June 2012  |  dr

great little unit, solves a few space problems.To improve ? pads on back to bypass the led resistors,isolate inputs, using free input pad, not a common return, so can attach to two different ground voltage sources.a single input / output version


2 of 2 people found this review helpful.