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Basic Electronics

NerdKits » Forums » Basic Electronics (453 threads, 3939 posts)
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Turn Vac on when tool turns on 7 1083 April 12, 2016
by Ralphxyz
USBasp Help! 3 1557 October 22, 2015
by sask55
Would someone explain Proximity Sensor? 19 3206 May 04, 2015
by mongo
Need to replace Wall Watt 16 872 May 02, 2015
by Ralphxyz
Connecting Mosfet 10 1350 April 10, 2015
by Noter
My new 3D Printer 44 15276 April 07, 2015
by Rick_S
AtMega 644 2 1588 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 952 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 1137 June 02, 2014
by JKITSON
Automated programming mode? 9 1402 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 1283 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 956 January 28, 2014
by lailai
What kind of error is this? 4 1205 January 23, 2014
by Noter
How to double a DC voltage? 20 5302 January 12, 2014
by JKITSON
Is the code the driver? 2 948 January 12, 2014
by Ralphxyz
Miniature headers 6 1253 January 01, 2014
by Ralphxyz
BLDC 8 1174 December 23, 2013
by esoderberg
I need help finding a terminal. 17 1566 November 26, 2013
by Rick_S
GLCD SPI problems 14 3306 November 10, 2013
by andyi
Moving on... 7 1355 November 08, 2013
by Pr0ject
Power supply questions 4 1604 October 31, 2013
by sask55
OLED 4 1075 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 4912 September 22, 2013
by sask55
Opto Interrupter once again 14 3184 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 1209 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 5919 September 02, 2013
by Ralphxyz
USB cable specifications 7 1288 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 1398 August 27, 2013
by Affarram
XMEGA Breakout 8 1539 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 985 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 1381 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 1436 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 5361 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 6926 June 18, 2013
by Noter
Two Wrongs Make it Right 3 1120 May 22, 2013
by meltbox360
accurate time for a real time clock 5 1455 April 08, 2013
by pcbolt
Using diode to drop voltage 12 30232 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 967 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 1206 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 2466 March 14, 2013
by mongo
Current vs Voltage 8 1806 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 1655 March 09, 2013
by lnino
Electric current 2 1026 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 3396 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 2814 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 2559 February 28, 2013
by BobaMosfet
Control electronic door opener 15 1437 February 24, 2013
by lnino
Relay Question 27 4010 February 19, 2013
by Noter
Rotary Encoder how to?? 21 3124 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 1630 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1922 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 1497 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 1427 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1765 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 1435 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 2119 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 1172 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 1186 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 1235 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 5365 November 18, 2012
by carlhako
SPI slave clock 6 1509 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 1221 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 15957 October 23, 2012
by Noter
NPN circuit connection quandry 4 1580 September 24, 2012
by edb
Simple I/O circuit 4 1306 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 1046 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 968 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 2487 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 1398 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 3117 September 13, 2012
by dan_engbers
Electronics simulation 8 1812 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 3243 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 1320 August 20, 2012
by rblalock
louder sound 2 1134 August 18, 2012
by mongo
connector or cable for LCD display? 4 1271 August 13, 2012
by missle3944
Powering L.E.Ds 5 1343 August 09, 2012
by BobaMosfet
Wires in U.K 5 1451 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 1556 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 3083 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 3495 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1720 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 15443 July 21, 2012
by lnino
um help 6 1114 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 1507 July 18, 2012
by Ralphxyz
help me 11 1635 July 03, 2012
by Rick_S
Crystal Oscillator question 2 1207 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1941 June 24, 2012
by Ralphxyz
HELP 3 1159 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 8887 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 1151 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 2139 June 17, 2012
by RogerFL
Programmable current source 6 1898 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1951 June 11, 2012
by mongo
HELP 6 1289 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 1561 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 19031 May 24, 2012
by Ralphxyz
i need a code 8 1623 May 15, 2012
by pcbolt
Clock Accuracy 30 4835 May 14, 2012
by HexManiac
Relays and Controlling them 9 1559 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1870 May 09, 2012
by RogerFL
Powering your NerdKit 7 1470 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 1385 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 2472 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 1559 April 24, 2012
by pcbolt
Programs will not run 6 1421 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1769 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 1565 April 09, 2012
by Ralphxyz
Path Lights controller 2 1358 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 1517 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1732 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 1540 April 01, 2012
by JamesFysh
Question on LCD screen 5 1437 March 30, 2012
by billtaichi
Is this Capaciator Good 4 1423 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 2756 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 2034 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 3331 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 1558 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 1721 March 15, 2012
by mongo
Digital servo issues! 9 1787 March 15, 2012
by Rick_S
Brushless motor control 16 2164 March 12, 2012
by hevans
Windows not detecting device 3 1331 March 10, 2012
by hevans
Voltage throught MCU 5 1287 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 14221 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 4731 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 6095 March 01, 2012
by hevans
Up and running... 3 1184 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 1520 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1830 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 1377 February 24, 2012
by Rick_S
programming lcd trubs 7 1418 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1957 February 18, 2012
by Rick_S
Oscilloscope 15 2906 February 18, 2012
by Osarus
How far away can a LM34 be? 16 5513 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 2500 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1576 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 4186 February 09, 2012
by mongo
Data transmission 3 1898 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1814 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 2767 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 1419 February 03, 2012
by BobaMosfet
connencting two ics to port 3 1227 January 31, 2012
by tchilzer2
H bridge questions 6 1575 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1620 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1783 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1925 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 3902 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1728 January 15, 2012
by Rick_S
Source of power? 19 1704 January 13, 2012
by mongo
symbol defined please? 4 1844 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 9829 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 1451 January 06, 2012
by boxvic
Basic LED circuit properties 8 1673 January 06, 2012
by boxvic
Getting Started 3 1455 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 2058 January 02, 2012
by bodangly
SMD reflow 16 2294 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1507 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1978 December 23, 2011
by BobaMosfet
Potentiometer 8 2083 December 23, 2011
by huzbum
Fun with Op-Amps 3 2690 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1841 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1677 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1754 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 1343 November 27, 2011
by sazD
Initial Load 2 1710 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1973 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 2730 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1830 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 5091 November 10, 2011
by jfbrink
Servo Squitter Project 13 1662 November 09, 2011
by Heed
how do i run a program 4 1386 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 1462 November 07, 2011
by Heed
Motor control question 2 1419 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 3853 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1592 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 1469 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 43232 October 24, 2011
by glendon
Measuring Capacitance 9 2678 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1668 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 2495 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 10520 October 16, 2011
by sask55
RxD / TxD Questions 10 3357 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1724 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1657 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 1402 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 1450 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 5848 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 2573 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 18428 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 3726 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 1420 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 3983 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 6607 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 4967 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1772 September 01, 2011
by BobaMosfet
Dim LED 3 1447 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1787 August 23, 2011
by Twarter369
Easy Transistor Question 4 2051 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 2943 August 18, 2011
by Ralphxyz
Building a coil?? 12 2945 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1722 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1499 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 1256 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 1262 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 12081 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 2158 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1514 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1610 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1558 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 3094 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1459 July 17, 2011
by codenamejupiterx
avr macpack 3 1492 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1664 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1610 July 13, 2011
by BobaMosfet
Battery clip wires 3 1382 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 1286 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 1330 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1665 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 2027 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 9292 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1642 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1551 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2953 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1857 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1761 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1678 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1814 June 06, 2011
by mja
A couple of questions 3 1440 June 06, 2011
by Ralphxyz
How much should I strip? 3 1376 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1880 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1520 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1857 May 29, 2011
by Rick_S
Digital Input Question 4 1554 May 28, 2011
by frankdwest
PCB arrived 20 1611 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 2172 May 24, 2011
by gcharris
Calculating bypass capacitor 6 11920 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 2129 May 09, 2011
by Noter
IR current 6 1912 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 2519 May 04, 2011
by hariharan
Heat sensors 21 2518 May 04, 2011
by Hexorg
error 1 2 1565 May 02, 2011
by hevans
Transistor vs mosfet 13 7615 May 01, 2011
by Noter
PCB trace width calculator 3 2654 April 24, 2011
by esoderberg
OLED display 10 2055 April 23, 2011
by Rick_S
Power Supplies 17 2995 April 22, 2011
by BobBolinger
LCD & battery&USB 4 1431 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1871 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1481 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1919 April 19, 2011
by mongo
Connecting to external control voltages 4 1724 April 19, 2011
by bretm
IR current question 7 1585 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 2152 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 2039 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1858 April 10, 2011
by uml_12
Basic projects 3 1641 April 09, 2011
by mongo
REFLOW oven 22 3724 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 6920 April 07, 2011
by bretm
unexpected MCU rebooting 82 4846 April 05, 2011
by sask55
REFLOW Soldering 3 2118 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1823 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 3742 March 30, 2011
by bretm
Black Display on LCD 6 1803 March 28, 2011
by Druidman
32kHz clock 2 1688 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 5993 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 5373 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2990 March 16, 2011
by mongo
LCD problem 3 1702 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 2486 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 2448 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1732 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 3216 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 2292 February 26, 2011
by amartinez
Why does my led light without the battery? 2 2438 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 7440 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 4426 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2956 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 4789 February 19, 2011
by Lusitania
My first Impression 6 1863 February 16, 2011
by devinsbusiness
Understanding battery life 3 2916 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2779 February 13, 2011
by sask55
Using Devices With Different Voltages 11 2246 February 05, 2011
by BobaMosfet
High voltage lines 26 3506 February 02, 2011
by mongo
USB 3 1696 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 2412 February 02, 2011
by Jalex
Alternating LED circuit 4 2220 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2997 January 31, 2011
by il1019
Affordable oscilloscopes 43 9328 January 27, 2011
by BStory
"And"gate unfinished thought 2 1599 January 27, 2011
by Hexorg
replace MCU? 30 5767 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 2182 January 25, 2011
by Ralphxyz
Multimeter! 12 3801 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2835 January 25, 2011
by Jalex
My LED Cube so far 25 6410 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 2713 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 2118 January 18, 2011
by dgikuljot
Counting 5 1477 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 4909 January 17, 2011
by bretm
Programming 5 2133 January 14, 2011
by Ralphxyz
Induction loop actuator 7 2528 January 11, 2011
by Yourself
Begining 7 2203 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 2730 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 2426 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1702 January 09, 2011
by mrobbins
UART operating at 3.3V 1 2080 January 06, 2011
by Mujda
Data input voltage 6 2366 January 03, 2011
by Rick_S
MOSFET Question 7 2286 December 31, 2010
by Keyster
Transistor as a switch 5 2066 December 29, 2010
by Hexorg
Resistors 5 2586 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 6386 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 2275 December 28, 2010
by BobaMosfet
Relay ratings 2 1884 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 14507 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1836 December 17, 2010
by mongo
Power Rectifier 7 2091 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 3412 December 14, 2010
by danuke
This a decent oscilloscope? 8 2325 December 14, 2010
by danuke
Do resistors in series really add up? 8 3173 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 2539 December 09, 2010
by bretm
L293 H-Bridge 15 3123 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2947 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 3441 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2632 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 3074 November 24, 2010
by BobaMosfet
Op-amp not working 6 3244 November 24, 2010
by BobaMosfet
Python questions 4 2783 November 21, 2010
by tkopriva
CE Amp design 5 1920 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 2278 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1919 November 05, 2010
by Mujda
PC4 not working?! 8 1608 November 04, 2010
by hapshetsut
Amplifiers 4 1917 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 2610 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2692 October 04, 2010
by Scythium
radio interference from NerdKit 11 1873 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 5120 September 14, 2010
by Ralphxyz
solar project with light sensors 7 2421 September 11, 2010
by akajester
QFP and dreadboard 2 2151 September 02, 2010
by bretm
Getting power to the spinning part... 5 2340 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 7781 August 30, 2010
by Ralphxyz
morse code decoder 2 2619 August 26, 2010
by jonathan_m
Connecting to Computer 3 2366 August 25, 2010
by awesome
555 astable on breadboard 12 3755 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1955 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 2345 August 19, 2010
by hevans
mosfet 3 1927 August 13, 2010
by hevans
Good material on learning electronics. 8 2103 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1760 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2638 August 02, 2010
by mrobbins
More batteries = more voltage? 3 2830 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 5582 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 3175 July 02, 2010
by mongo
Electro Cardio Gram 4 2605 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1833 June 12, 2010
by Wobbler
Voltage Regulator 20 3126 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 3013 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 3191 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 3082 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 2287 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1804 June 06, 2010
by Kafke
TSSOP IC! 4 2206 June 03, 2010
by mrobbins
AVcc 2 2601 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1982 May 31, 2010
by hevans
Cable Driver 2 1718 May 31, 2010
by mongo
Best 9V adapter to use 2 2030 May 28, 2010
by mongo
Unidirectional microphones 5 2253 May 27, 2010
by mongo
Servo question 3 1961 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 2285 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 2127 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 3202 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 5737 May 21, 2010
by hevans
Chinese Solenoid 15 2150 May 10, 2010
by treymd
avrisp mkii circuit 4 3241 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 2034 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 5285 May 07, 2010
by rajabalu21
Simple Power Switch 6 1873 May 05, 2010
by avicell
I can haz speed! 3 2137 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 3295 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2708 April 21, 2010
by bretm
Help with choosing the right resistor 10 3289 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 4400 April 15, 2010
by bretm
Resistor 4 1739 April 15, 2010
by mongo
MCU digital input pins 3 1627 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 2175 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 7065 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3687 March 28, 2010
by carlhako
Laptop ground safety question 3 2211 March 27, 2010
by ese
LM34 R-C Damper 5 2525 March 24, 2010
by BobaMosfet
NerdKits & USB 5 2221 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1850 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 3480 March 23, 2010
by ese
constant system reset 3 1700 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 2187 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2925 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2611 March 17, 2010
by Frozenlock
What is -VS? 6 3030 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3653 March 04, 2010
by treymd
Using MCU to connect two wires 3 2217 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 5405 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1981 March 02, 2010
by Solorbob
Deciphering power resistors 11 2287 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1971 March 01, 2010
by nrotstan
Understanding LEDs 16 3507 March 01, 2010
by michaeldallas
What's the part I need? 5 1953 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 7998 February 23, 2010
by rajabalu21
Too much power? 14 2674 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 3206 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 2553 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 7550 February 18, 2010
by Rick_S
Serial port interface circuit 2 2925 February 17, 2010
by mongo
OBDII project 3 2032 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 3678 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3948 February 13, 2010
by BobaMosfet
Digital pots 5 2125 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 2212 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 3235 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 3113 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 4025 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 2356 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 3808 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 5750 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2856 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 2201 December 27, 2009
by jgauthier
Servo Signal Noise 2 1845 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 4299 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 7984 December 10, 2009
by georgio
Relays and transistors 12 6087 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4951 December 09, 2009
by Rick_S
IR Detector 7 3687 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2785 November 19, 2009
by mikedoug
Debug with lcd 6 2609 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 2411 November 15, 2009
by tech20
Understanding output pin characteristics 4 2150 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3914 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 2420 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 34004 October 30, 2009
by BobaMosfet
DIY header unit 2 2706 October 10, 2009
by rusirius
Thermostat Logging 6 3363 October 09, 2009
by luke
Understanding transistors 6 3688 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 6971 October 07, 2009
by mikedoug
Currant booster 3 1898 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2678 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 7471 August 27, 2009
by hevans
Which LED? 14 2564 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 3402 August 07, 2009
by mongo
pull up, pull down resistors 7 13889 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 7040 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 4137 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 3709 July 07, 2009
by sector0
Reset switch for circuit 3 2381 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 25896 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2705 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 2469 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 2453 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 3070 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 2388 May 06, 2009
by paulip

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