A student builds an mbed-based system. To one port he connects the circuit of Fig. 3.17A, using
Question:
A student builds an mbed-based system. To one port he connects the circuit of Fig. 3.17A, using LEDs of the type used in Fig. 3.4, but is then disappointed that the LEDs do not appear to light when expected. Explain why this is so and suggest a way of changing the circuit to give the required behavior.
Fig. 3.17A
Transcribed Image Text:
(A) mbed port output -3.3V
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Based on the circuit diagram in Fig 317A and the characteristics of the LED from Fig 34 we can analyze the reason why the LEDs may not be lighting up ...View the full answer
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Jonas Araujo
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Related Book For
Fast And Effective Embedded Systems Design Applying The ARM Mbed
ISBN: 978-0081008805
2nd Edition
Authors: Tim Wilmshurst, Rob Toulson
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