Most popular questions

323 Why is there so much fear surrounding LiPo batteries? 2016-04-24T01:44:38.350

312 What is the difference between \$V_{CC}\$, \$V_{DD}\$, \$V_{EE}\$, \$V_{SS}\$ 2011-07-25T19:21:19.517

293 Rules and guidelines for drawing good schematics 2012-03-17T18:44:02.100

293 Choosing power supply, how to get the voltage and current ratings? 2012-06-28T21:54:32.103

285 Basic Electronics Book 2009-11-23T22:21:39.657

267 What is it that strips vocals from audio when a 1/8" audio jack is partially unplugged? 2012-10-02T19:22:50.297

231 Decoupling caps, PCB layout 2011-06-07T19:47:53.123

229 Good tools for drawing schematics 2009-12-15T03:40:14.550

212 Why was Mini USB deprecated in favor of Micro USB? 2011-08-23T20:37:36.083

202 What is a decoupling capacitor and how do I know if I need one? 2010-04-17T23:47:47.080

198 What's the difference between a microcontroller and a microprocessor? 2009-12-17T21:18:22.430

191 Why does USB have 4 lines instead of 3? 2011-09-26T07:24:21.383

180 USART, UART, RS232, USB, SPI, I2C, TTL, etc. what are all of these and how do they relate to each other? 2012-08-13T18:14:36.563

171 Is C++ suitable for embedded systems? 2010-06-15T15:55:50.073

169 How much does it cost to have a custom ASIC made? 2010-11-21T11:23:27.793

165 How does the current know how much to flow, before having seen the resistor? 2011-09-20T18:15:06.623

156 What is the reason that the value "47" is so popular in electrical engineering? 2013-05-02T20:47:41.110

143 How can I efficiently drive an LED? 2013-01-23T02:18:59.907

140 Why exactly can't a single resistor be used for many parallel LEDs? 2011-11-15T21:43:53.973

135 Designing a Santa alarm (honestly) 2014-12-03T18:00:51.763

126 Why does Samsung include useless capacitors? 2018-08-15T19:46:40.303

122 What measures should I take to protect the USB ports of my PC during development of a USB device? 2013-12-22T18:10:35.243

119 Tradeoffs when considering SPI or I2C? 2012-03-31T04:33:24.040

115 What’s the proper soldering iron temperature for standard .031" 60/40 solder? 2010-03-22T23:13:59.587

113 Should chassis ground be attached to digital ground? 2011-09-16T16:25:31.170

112 Best One-Off DIY PCB Creation Technique 2010-11-20T07:12:31.967

111 Are solder fumes bad for me? 2010-03-15T22:13:03.210

109 What limits CPU speed? 2014-07-20T15:37:15.853

107 Why Are Ethernet/RJ45 Sockets Magnetically Coupled? 2012-03-08T22:14:05.730

105 My linear voltage regulator is overheating very fast 2011-08-21T02:53:45.410

105 Are tantalum capacitors safe for use in new designs? 2014-02-10T17:20:15.223

104 Measuring feline capacitance 2015-02-02T11:13:00.613

103 Why does micro USB 2.0 have 5 pins, when the A-type only has 4? 2012-07-10T22:16:56.630

102 Can microcontrollers be run at arbitrarily low clock frequencies? 2009-12-16T03:58:52.437

99 Why does a resistor need to be on the anode of an LED? 2011-05-02T02:34:34.197

99 VHDL vs. Verilog 2011-07-13T08:00:12.177

98 How do I calculate the required value for a pull-up resistor? 2011-12-13T22:23:19.733

95 Why are there 3 pins on some batteries? 2011-02-23T08:28:14.247

94 What is negative voltage? 2011-02-17T02:40:51.527

94 Difference between UART and RS-232? 2014-05-15T05:19:33.283

93 Why are there no 256-bit or 512-bit microprocessors? 2012-10-04T13:02:23.243

91 What's the best way to store and categorise resistors/capacitors/ICs/etc? 2010-07-18T06:56:16.320

91 How to get more than 100mA from a USB port 2010-10-23T09:26:39.547

90 What are the different types of solder used for? 2009-10-28T15:00:37.867

88 Why does a Tesla car use an AC motor instead of a DC one? 2013-02-17T04:36:29.630

87 What kind of components are black blobs on a PCB? 2011-01-17T16:13:17.863

87 What is the difference between Flash memory and EEPROM? 2013-05-14T12:20:00.900

87 How do I prove to my physics teacher that adding a battery in parallel doesn't double the current? 2018-02-09T03:40:17.933

86 Ceramic caps vs electrolytic. What are the tangible differences in use? 2016-05-06T09:24:17.483

86 Looking for circuit board material that can be dissolved 2019-09-23T21:11:53.820