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94 votes
10 answers
171k views

How to get more than 100mA from a USB port

9 votes
1 answer
55k views

How do I measure the voltage coming out of a USB port?

3 votes
1 answer
235 views

Only getting 33mA from a USB port

3 votes
2 answers
6k views

How does an 8-4 multiplexer function?

2 votes
1 answer
346 views

Are there op amps in Logicworks?

2 votes
1 answer
253 views

How to make a chip with lots of pins in Logicworks

2 votes
1 answer
330 views

Can an mbed device be damaged by something drawing too much current?

2 votes
2 answers
86 views

How likely is it that this chip was damaged?

2 votes
3 answers
961 views

Reducing the memory address bus by adding banks

2 votes
1 answer
1k views

Using a Laplace transform to figure something out in a DC circuit

2 votes
1 answer
3k views

How would a Laplace transform be useful in analyzing this circuit?

2 votes
3 answers
2k views

How to secure components to a wire-wrap board

2 votes
5 answers
11k views

Questions about wires in a DB9 cable

2 votes
1 answer
8k views

How to read the device ID of a dataflash memory

2 votes
2 answers
178 views

Measuring supply voltage

1 vote
2 answers
143 views

How is the board connected to this chip?

1 vote
1 answer
477 views

How should I debug my mbed project?

1 vote
1 answer
688 views

What is the name of this electronic component

1 vote
2 answers
1k views

How to connect mbed to computer

1 vote
4 answers
733 views

Output from a shift register

1 vote
2 answers
866 views

Pin numbering on LPC2148

1 vote
5 answers
1k views

Does reset do the same thing as shutting off the power to this device and turning it back on?

0 votes
2 answers
636 views

How much current does this device draw?

0 votes
2 answers
250 views

Voltage and current don't seem to match up

0 votes
2 answers
782 views

Programming an LPC2148 in OSX

0 votes
1 answer
521 views

Using a 276-640 instead of a tsop 1236

0 votes
2 answers
1k views

How does using memory with more bits allow you to reduce the address bus?

0 votes
1 answer
571 views

Can the frequency of the SPI sck on an mbed be adjusted?

0 votes
2 answers
588 views

How to make an mbed print text from ascii codes

0 votes
2 answers
232 views

Which one is ground?