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Basic Electronics

NerdKits » Forums » Basic Electronics (447 threads, 3863 posts)
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Switching between +5v and -5V 2 112 August 07, 2014
by Rick_S
My new 3D Printer 25 3746 July 31, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 364 June 02, 2014
by JKITSON
Automated programming mode? 9 590 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 468 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 200 January 28, 2014
by lailai
What kind of error is this? 4 290 January 23, 2014
by Noter
How to double a DC voltage? 20 2002 January 12, 2014
by JKITSON
Is the code the driver? 2 255 January 12, 2014
by Ralphxyz
Miniature headers 6 450 January 01, 2014
by Ralphxyz
BLDC 8 402 December 23, 2013
by esoderberg
I need help finding a terminal. 17 774 November 26, 2013
by Rick_S
GLCD SPI problems 14 1023 November 10, 2013
by andyi
Moving on... 7 571 November 08, 2013
by Pr0ject
Power supply questions 4 703 October 31, 2013
by sask55
OLED 4 436 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1556 September 22, 2013
by sask55
Opto Interrupter once again 14 938 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 446 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2187 September 02, 2013
by Ralphxyz
USB cable specifications 7 569 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 543 August 27, 2013
by Affarram
XMEGA Breakout 8 593 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 382 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 543 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 601 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4030 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3217 June 18, 2013
by Noter
Two Wrongs Make it Right 3 554 May 22, 2013
by meltbox360
accurate time for a real time clock 5 736 April 08, 2013
by pcbolt
Using diode to drop voltage 12 10262 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 422 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 602 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 825 March 14, 2013
by mongo
Current vs Voltage 8 882 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 650 March 09, 2013
by lnino
Electric current 2 453 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1394 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 980 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1003 February 28, 2013
by BobaMosfet
Control electronic door opener 15 702 February 24, 2013
by lnino
Relay Question 27 2594 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1345 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 721 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 949 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 745 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 776 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1083 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 773 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1012 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 591 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 585 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 624 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 2887 November 18, 2012
by carlhako
SPI slave clock 6 752 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 679 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 10737 October 23, 2012
by Noter
NPN circuit connection quandry 4 848 September 24, 2012
by edb
Simple I/O circuit 4 741 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 506 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 466 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1440 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 789 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1707 September 13, 2012
by dan_engbers
Electronics simulation 8 941 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2167 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 732 August 20, 2012
by rblalock
louder sound 2 542 August 18, 2012
by mongo
connector or cable for LCD display? 4 745 August 13, 2012
by missle3944
Powering L.E.Ds 5 713 August 09, 2012
by BobaMosfet
Wires in U.K 5 769 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 829 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1854 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1844 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1018 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 9562 July 21, 2012
by lnino
um help 6 568 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 836 July 18, 2012
by Ralphxyz
help me 11 905 July 03, 2012
by Rick_S
Crystal Oscillator question 2 706 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 952 June 24, 2012
by Ralphxyz
HELP 3 622 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 5484 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 600 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1161 June 17, 2012
by RogerFL
Programmable current source 6 1086 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 966 June 11, 2012
by mongo
HELP 6 706 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 938 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 6709 May 24, 2012
by Ralphxyz
i need a code 8 1015 May 15, 2012
by pcbolt
Clock Accuracy 30 3689 May 14, 2012
by HexManiac
Relays and Controlling them 9 918 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1071 May 09, 2012
by RogerFL
Powering your NerdKit 7 846 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 794 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1143 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 936 April 24, 2012
by pcbolt
Programs will not run 6 816 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1054 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 913 April 09, 2012
by Ralphxyz
Path Lights controller 2 773 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 860 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 990 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 938 April 01, 2012
by JamesFysh
Question on LCD screen 5 846 March 30, 2012
by billtaichi
Is this Capaciator Good 4 803 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 830 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1417 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1711 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 931 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 852 March 15, 2012
by mongo
Digital servo issues! 9 1088 March 15, 2012
by Rick_S
Brushless motor control 16 1309 March 12, 2012
by hevans
Windows not detecting device 3 811 March 10, 2012
by hevans
Voltage throught MCU 5 704 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10551 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2108 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2385 March 01, 2012
by hevans
Up and running... 3 688 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 877 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 954 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 797 February 24, 2012
by Rick_S
programming lcd trubs 7 913 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1223 February 18, 2012
by Rick_S
Oscilloscope 15 1806 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3866 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1856 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1014 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2740 February 09, 2012
by mongo
Data transmission 3 1384 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1107 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1674 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 883 February 03, 2012
by BobaMosfet
connencting two ics to port 3 747 January 31, 2012
by tchilzer2
H bridge questions 6 977 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1017 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1155 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1155 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2169 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1132 January 15, 2012
by Rick_S
Source of power? 19 1147 January 13, 2012
by mongo
symbol defined please? 4 1201 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5295 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 949 January 06, 2012
by boxvic
Basic LED circuit properties 8 1020 January 06, 2012
by boxvic
Getting Started 3 937 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1241 January 02, 2012
by bodangly
SMD reflow 16 1437 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 981 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1284 December 23, 2011
by BobaMosfet
Potentiometer 8 1418 December 23, 2011
by huzbum
Fun with Op-Amps 3 1602 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1181 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 967 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1098 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 808 November 27, 2011
by sazD
Initial Load 2 1062 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1214 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1802 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1158 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3801 November 10, 2011
by jfbrink
Servo Squitter Project 13 1052 November 09, 2011
by Heed
how do i run a program 4 849 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 949 November 07, 2011
by Heed
Motor control question 2 925 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2199 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1091 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 923 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 15187 October 24, 2011
by glendon
Measuring Capacitance 9 1807 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1052 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1525 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 5681 October 16, 2011
by sask55
RxD / TxD Questions 10 2034 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1141 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1142 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 851 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 934 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3420 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1608 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13176 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1730 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 955 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2152 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3619 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3636 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1144 September 01, 2011
by BobaMosfet
Dim LED 3 961 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1128 August 23, 2011
by Twarter369
Easy Transistor Question 4 1361 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1834 August 18, 2011
by Ralphxyz
Building a coil?? 12 2010 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1207 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 978 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 801 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 795 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 5994 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1479 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 983 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 974 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 970 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2003 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 973 July 17, 2011
by codenamejupiterx
avr macpack 3 913 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1116 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1110 July 13, 2011
by BobaMosfet
Battery clip wires 3 905 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 783 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 825 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1032 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1464 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 4712 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1013 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1064 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2086 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1260 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1153 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1166 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1291 June 06, 2011
by mja
A couple of questions 3 904 June 06, 2011
by Ralphxyz
How much should I strip? 3 918 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1314 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1038 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1334 May 29, 2011
by Rick_S
Digital Input Question 4 1017 May 28, 2011
by frankdwest
PCB arrived 20 1118 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1489 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5080 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1518 May 09, 2011
by Noter
IR current 6 1352 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1758 May 04, 2011
by hariharan
Heat sensors 21 1702 May 04, 2011
by Hexorg
error 1 2 1120 May 02, 2011
by hevans
Transistor vs mosfet 13 4078 May 01, 2011
by Noter
PCB trace width calculator 3 1972 April 24, 2011
by esoderberg
OLED display 10 1419 April 23, 2011
by Rick_S
Power Supplies 17 2360 April 22, 2011
by BobBolinger
LCD & battery&USB 4 908 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1237 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1018 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1367 April 19, 2011
by mongo
Connecting to external control voltages 4 1206 April 19, 2011
by bretm
IR current question 7 1058 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1551 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1300 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1225 April 10, 2011
by uml_12
Basic projects 3 1160 April 09, 2011
by mongo
REFLOW oven 22 2626 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4339 April 07, 2011
by bretm
unexpected MCU rebooting 82 2376 April 05, 2011
by sask55
REFLOW Soldering 3 1409 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1274 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2566 March 30, 2011
by bretm
Black Display on LCD 6 1264 March 28, 2011
by Druidman
32kHz clock 2 1229 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4142 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4111 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2116 March 16, 2011
by mongo
LCD problem 3 1200 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1693 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1829 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1195 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2134 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1479 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1667 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4442 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2846 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2328 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2679 February 19, 2011
by Lusitania
My first Impression 6 1338 February 16, 2011
by devinsbusiness
Understanding battery life 3 2100 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2120 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1582 February 05, 2011
by BobaMosfet
High voltage lines 26 2498 February 02, 2011
by mongo
USB 3 1164 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1681 February 02, 2011
by Jalex
Alternating LED circuit 4 1686 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2104 January 31, 2011
by il1019
Affordable oscilloscopes 43 7730 January 27, 2011
by BStory
"And"gate unfinished thought 2 1068 January 27, 2011
by Hexorg
replace MCU? 30 4738 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1575 January 25, 2011
by Ralphxyz
Multimeter! 12 3118 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2058 January 25, 2011
by Jalex
My LED Cube so far 25 4820 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1921 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1482 January 18, 2011
by dgikuljot
Counting 5 989 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3392 January 17, 2011
by bretm
Programming 5 1518 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1907 January 11, 2011
by Yourself
Begining 7 1653 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1919 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1784 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1123 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1522 January 06, 2011
by Mujda
Data input voltage 6 1741 January 03, 2011
by Rick_S
MOSFET Question 7 1658 December 31, 2010
by Keyster
Transistor as a switch 5 1513 December 29, 2010
by Hexorg
Resistors 5 1988 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4550 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1519 December 28, 2010
by BobaMosfet
Relay ratings 2 1305 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 10841 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1345 December 17, 2010
by mongo
Power Rectifier 7 1501 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2498 December 14, 2010
by danuke
This a decent oscilloscope? 8 1731 December 14, 2010
by danuke
Do resistors in series really add up? 8 2251 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1822 December 09, 2010
by bretm
L293 H-Bridge 15 2289 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2227 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2488 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1936 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2094 November 24, 2010
by BobaMosfet
Op-amp not working 6 2125 November 24, 2010
by BobaMosfet
Python questions 4 2102 November 21, 2010
by tkopriva
CE Amp design 5 1386 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1729 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1365 November 05, 2010
by Mujda
PC4 not working?! 8 1077 November 04, 2010
by hapshetsut
Amplifiers 4 1364 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1902 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2062 October 04, 2010
by Scythium
radio interference from NerdKit 11 1353 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3225 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1877 September 11, 2010
by akajester
QFP and dreadboard 2 1556 September 02, 2010
by bretm
Getting power to the spinning part... 5 1734 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4743 August 30, 2010
by Ralphxyz
morse code decoder 2 2026 August 26, 2010
by jonathan_m
Connecting to Computer 3 1840 August 25, 2010
by awesome
555 astable on breadboard 12 2880 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1379 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1827 August 19, 2010
by hevans
mosfet 3 1395 August 13, 2010
by hevans
Good material on learning electronics. 8 1513 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1220 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1956 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1920 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3801 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2290 July 02, 2010
by mongo
Electro Cardio Gram 4 1936 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1309 June 12, 2010
by Wobbler
Voltage Regulator 20 2270 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2411 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2297 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2301 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1646 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1235 June 06, 2010
by Kafke
TSSOP IC! 4 1659 June 03, 2010
by mrobbins
AVcc 2 1991 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1487 May 31, 2010
by hevans
Cable Driver 2 1242 May 31, 2010
by mongo
Best 9V adapter to use 2 1472 May 28, 2010
by mongo
Unidirectional microphones 5 1679 May 27, 2010
by mongo
Servo question 3 1410 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1674 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1436 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2248 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 3960 May 21, 2010
by hevans
Chinese Solenoid 15 1571 May 10, 2010
by treymd
avrisp mkii circuit 4 2571 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1521 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3092 May 07, 2010
by rajabalu21
Simple Power Switch 6 1223 May 05, 2010
by avicell
I can haz speed! 3 1474 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2484 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2086 April 21, 2010
by bretm
Help with choosing the right resistor 10 2246 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2880 April 15, 2010
by bretm
Resistor 4 1254 April 15, 2010
by mongo
MCU digital input pins 3 1134 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1681 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5498 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3007 March 28, 2010
by carlhako
Laptop ground safety question 3 1632 March 27, 2010
by ese
LM34 R-C Damper 5 1847 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1664 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1319 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2625 March 23, 2010
by ese
constant system reset 3 1230 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1535 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2234 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2022 March 17, 2010
by Frozenlock
What is -VS? 6 1795 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3011 March 04, 2010
by treymd
Using MCU to connect two wires 3 1650 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4045 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1462 March 02, 2010
by Solorbob
Deciphering power resistors 11 1571 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1438 March 01, 2010
by nrotstan
Understanding LEDs 16 2702 March 01, 2010
by michaeldallas
What's the part I need? 5 1387 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 5957 February 23, 2010
by rajabalu21
Too much power? 14 2031 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2602 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1796 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 4865 February 18, 2010
by Rick_S
Serial port interface circuit 2 2258 February 17, 2010
by mongo
OBDII project 3 1511 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2537 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3006 February 13, 2010
by BobaMosfet
Digital pots 5 1532 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1671 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2547 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2141 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 2979 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1784 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2706 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4305 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2058 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1591 December 27, 2009
by jgauthier
Servo Signal Noise 2 1334 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3469 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5826 December 10, 2009
by georgio
Relays and transistors 12 5262 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 3945 December 09, 2009
by Rick_S
IR Detector 7 2494 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2129 November 19, 2009
by mikedoug
Debug with lcd 6 1948 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1922 November 15, 2009
by tech20
Understanding output pin characteristics 4 1555 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3179 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1858 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 23821 October 30, 2009
by BobaMosfet
DIY header unit 2 2156 October 10, 2009
by rusirius
Thermostat Logging 6 2433 October 09, 2009
by luke
Understanding transistors 6 2962 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5890 October 07, 2009
by mikedoug
Currant booster 3 1399 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2008 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5247 August 27, 2009
by hevans
Which LED? 14 2018 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2711 August 07, 2009
by mongo
pull up, pull down resistors 7 12248 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5325 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3325 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2923 July 07, 2009
by sector0
Reset switch for circuit 3 1835 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 23973 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2069 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1870 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1896 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2452 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1780 May 06, 2009
by paulip

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Did you know that you can input numbers in binary via a DIP switch, and output them to the LCD? Learn more...