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Basic Electronics

NerdKits » Forums » Basic Electronics (445 threads, 3834 posts)
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Are there hobby printers for my microproccessor? 2 107 April 09, 2014
by Rick_S
Automated programming mode? 9 439 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 347 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 88 January 28, 2014
by lailai
What kind of error is this? 4 170 January 23, 2014
by Noter
How to double a DC voltage? 20 1393 January 12, 2014
by JKITSON
Is the code the driver? 2 153 January 12, 2014
by Ralphxyz
Miniature headers 6 308 January 01, 2014
by Ralphxyz
BLDC 8 279 December 23, 2013
by esoderberg
I need help finding a terminal. 17 641 November 26, 2013
by Rick_S
GLCD SPI problems 14 728 November 10, 2013
by andyi
Moving on... 7 431 November 08, 2013
by Pr0ject
Power supply questions 4 447 October 31, 2013
by sask55
OLED 4 312 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1070 September 22, 2013
by sask55
Opto Interrupter once again 14 653 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 327 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 1635 September 02, 2013
by Ralphxyz
USB cable specifications 7 431 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 405 August 27, 2013
by Affarram
XMEGA Breakout 8 467 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 293 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 395 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 480 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 3804 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 2748 June 18, 2013
by Noter
Two Wrongs Make it Right 3 465 May 22, 2013
by meltbox360
accurate time for a real time clock 5 617 April 08, 2013
by pcbolt
Using diode to drop voltage 12 7467 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 334 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 487 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 616 March 14, 2013
by mongo
Current vs Voltage 8 758 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 507 March 09, 2013
by lnino
Electric current 2 366 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1029 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 776 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 817 February 28, 2013
by BobaMosfet
Control electronic door opener 15 600 February 24, 2013
by lnino
Relay Question 27 2420 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1047 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 593 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 779 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 627 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 678 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 962 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 667 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 842 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 463 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 501 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 520 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 2488 November 18, 2012
by carlhako
SPI slave clock 6 624 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 606 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 9903 October 23, 2012
by Noter
NPN circuit connection quandry 4 741 September 24, 2012
by edb
Simple I/O circuit 4 655 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 427 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 385 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1222 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 702 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1474 September 13, 2012
by dan_engbers
Electronics simulation 8 823 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 1999 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 641 August 20, 2012
by rblalock
louder sound 2 477 August 18, 2012
by mongo
connector or cable for LCD display? 4 666 August 13, 2012
by missle3944
Powering L.E.Ds 5 618 August 09, 2012
by BobaMosfet
Wires in U.K 5 650 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 752 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1676 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1540 July 25, 2012
by bretm
Stepper Motor Direction Control 12 923 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 8781 July 21, 2012
by lnino
um help 6 483 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 737 July 18, 2012
by Ralphxyz
help me 11 814 July 03, 2012
by Rick_S
Crystal Oscillator question 2 619 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 805 June 24, 2012
by Ralphxyz
HELP 3 546 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 4612 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 525 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 976 June 17, 2012
by RogerFL
Programmable current source 6 963 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 850 June 11, 2012
by mongo
HELP 6 606 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 834 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 5234 May 24, 2012
by Ralphxyz
i need a code 8 892 May 15, 2012
by pcbolt
Clock Accuracy 30 3544 May 14, 2012
by HexManiac
Relays and Controlling them 9 797 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 938 May 09, 2012
by RogerFL
Powering your NerdKit 7 768 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 691 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 972 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 798 April 24, 2012
by pcbolt
Programs will not run 6 718 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 935 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 793 April 09, 2012
by Ralphxyz
Path Lights controller 2 679 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 746 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 877 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 853 April 01, 2012
by JamesFysh
Question on LCD screen 5 746 March 30, 2012
by billtaichi
Is this Capaciator Good 4 699 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 739 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1290 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1489 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 824 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 749 March 15, 2012
by mongo
Digital servo issues! 9 955 March 15, 2012
by Rick_S
Brushless motor control 16 1200 March 12, 2012
by hevans
Windows not detecting device 3 723 March 10, 2012
by hevans
Voltage throught MCU 5 616 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10191 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 1801 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 1850 March 01, 2012
by hevans
Up and running... 3 596 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 777 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 847 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 696 February 24, 2012
by Rick_S
programming lcd trubs 7 823 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1034 February 18, 2012
by Rick_S
Oscilloscope 15 1614 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3577 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1748 February 14, 2012
by Ralphxyz
It's true, we forget... 18 929 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2548 February 09, 2012
by mongo
Data transmission 3 1300 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 986 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1463 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 780 February 03, 2012
by BobaMosfet
connencting two ics to port 3 665 January 31, 2012
by tchilzer2
H bridge questions 6 899 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 918 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1066 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1047 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 1847 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1037 January 15, 2012
by Rick_S
Source of power? 19 1069 January 13, 2012
by mongo
symbol defined please? 4 1076 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 4542 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 878 January 06, 2012
by boxvic
Basic LED circuit properties 8 923 January 06, 2012
by boxvic
Getting Started 3 836 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1124 January 02, 2012
by bodangly
SMD reflow 16 1279 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 888 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1189 December 23, 2011
by BobaMosfet
Potentiometer 8 1311 December 23, 2011
by huzbum
Fun with Op-Amps 3 1450 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1058 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 840 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1003 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 724 November 27, 2011
by sazD
Initial Load 2 948 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1089 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1667 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1052 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3567 November 10, 2011
by jfbrink
Servo Squitter Project 13 967 November 09, 2011
by Heed
how do i run a program 4 756 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 855 November 07, 2011
by Heed
Motor control question 2 834 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 1959 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 995 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 819 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 12663 October 24, 2011
by glendon
Measuring Capacitance 9 1634 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 940 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1362 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 4840 October 16, 2011
by sask55
RxD / TxD Questions 10 1870 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1022 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1034 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 760 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 848 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 2871 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1436 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 12393 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1449 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 861 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 1855 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3227 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3385 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1038 September 01, 2011
by BobaMosfet
Dim LED 3 883 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1036 August 23, 2011
by Twarter369
Easy Transistor Question 4 1241 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1629 August 18, 2011
by Ralphxyz
Building a coil?? 12 1832 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1121 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 884 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 718 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 706 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 5079 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1342 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 888 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 875 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 856 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 1747 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 870 July 17, 2011
by codenamejupiterx
avr macpack 3 824 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1033 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1022 July 13, 2011
by BobaMosfet
Battery clip wires 3 817 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 686 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 736 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 945 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1377 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 4038 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 908 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 979 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 1880 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1173 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1050 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1067 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1195 June 06, 2011
by mja
A couple of questions 3 822 June 06, 2011
by Ralphxyz
How much should I strip? 3 828 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1195 June 01, 2011
by hevans
Motor Control/MCU power bus 5 946 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1241 May 29, 2011
by Rick_S
Digital Input Question 4 917 May 28, 2011
by frankdwest
PCB arrived 20 1034 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1390 May 24, 2011
by gcharris
Calculating bypass capacitor 6 4235 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1422 May 09, 2011
by Noter
IR current 6 1238 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1615 May 04, 2011
by hariharan
Heat sensors 21 1581 May 04, 2011
by Hexorg
error 1 2 1036 May 02, 2011
by hevans
Transistor vs mosfet 13 3553 May 01, 2011
by Noter
PCB trace width calculator 3 1813 April 24, 2011
by esoderberg
OLED display 10 1336 April 23, 2011
by Rick_S
Power Supplies 17 2241 April 22, 2011
by BobBolinger
LCD & battery&USB 4 825 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1145 April 21, 2011
by Rick_S
ADC Theremin Help... 1 937 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1278 April 19, 2011
by mongo
Connecting to external control voltages 4 1124 April 19, 2011
by bretm
IR current question 7 950 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1431 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1160 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1128 April 10, 2011
by uml_12
Basic projects 3 1063 April 09, 2011
by mongo
REFLOW oven 22 2410 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 3953 April 07, 2011
by bretm
unexpected MCU rebooting 82 2210 April 05, 2011
by sask55
REFLOW Soldering 3 1293 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1177 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2338 March 30, 2011
by bretm
Black Display on LCD 6 1172 March 28, 2011
by Druidman
32kHz clock 2 1149 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 3822 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 3903 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 1941 March 16, 2011
by mongo
LCD problem 3 1105 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1569 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1713 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1109 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 1973 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1365 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1556 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 3922 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2551 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2186 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2305 February 19, 2011
by Lusitania
My first Impression 6 1251 February 16, 2011
by devinsbusiness
Understanding battery life 3 1980 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2017 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1465 February 05, 2011
by BobaMosfet
High voltage lines 26 2343 February 02, 2011
by mongo
USB 3 1080 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1553 February 02, 2011
by Jalex
Alternating LED circuit 4 1575 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 1918 January 31, 2011
by il1019
Affordable oscilloscopes 43 7340 January 27, 2011
by BStory
"And"gate unfinished thought 2 982 January 27, 2011
by Hexorg
replace MCU? 30 4575 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1468 January 25, 2011
by Ralphxyz
Multimeter! 12 2987 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 1923 January 25, 2011
by Jalex
My LED Cube so far 25 4532 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1790 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1374 January 18, 2011
by dgikuljot
Counting 5 917 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3212 January 17, 2011
by bretm
Programming 5 1402 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1786 January 11, 2011
by Yourself
Begining 7 1548 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1797 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1690 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1017 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1424 January 06, 2011
by Mujda
Data input voltage 6 1596 January 03, 2011
by Rick_S
MOSFET Question 7 1531 December 31, 2010
by Keyster
Transistor as a switch 5 1413 December 29, 2010
by Hexorg
Resistors 5 1888 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4217 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1405 December 28, 2010
by BobaMosfet
Relay ratings 2 1216 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 10234 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1227 December 17, 2010
by mongo
Power Rectifier 7 1426 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2300 December 14, 2010
by danuke
This a decent oscilloscope? 8 1631 December 14, 2010
by danuke
Do resistors in series really add up? 8 2100 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1707 December 09, 2010
by bretm
L293 H-Bridge 15 2148 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2082 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2268 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1771 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 1907 November 24, 2010
by BobaMosfet
Op-amp not working 6 1933 November 24, 2010
by BobaMosfet
Python questions 4 1971 November 21, 2010
by tkopriva
CE Amp design 5 1304 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1609 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1260 November 05, 2010
by Mujda
PC4 not working?! 8 1001 November 04, 2010
by hapshetsut
Amplifiers 4 1274 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1769 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 1931 October 04, 2010
by Scythium
radio interference from NerdKit 11 1259 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 2917 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1780 September 11, 2010
by akajester
QFP and dreadboard 2 1459 September 02, 2010
by bretm
Getting power to the spinning part... 5 1627 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4332 August 30, 2010
by Ralphxyz
morse code decoder 2 1913 August 26, 2010
by jonathan_m
Connecting to Computer 3 1747 August 25, 2010
by awesome
555 astable on breadboard 12 2743 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1280 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1735 August 19, 2010
by hevans
mosfet 3 1287 August 13, 2010
by hevans
Good material on learning electronics. 8 1422 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1129 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1843 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1797 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3427 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2165 July 02, 2010
by mongo
Electro Cardio Gram 4 1793 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1219 June 12, 2010
by Wobbler
Voltage Regulator 20 2072 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2270 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2112 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2162 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1530 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1143 June 06, 2010
by Kafke
TSSOP IC! 4 1564 June 03, 2010
by mrobbins
AVcc 2 1834 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1406 May 31, 2010
by hevans
Cable Driver 2 1156 May 31, 2010
by mongo
Best 9V adapter to use 2 1381 May 28, 2010
by mongo
Unidirectional microphones 5 1581 May 27, 2010
by mongo
Servo question 3 1313 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1581 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1336 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2120 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 3657 May 21, 2010
by hevans
Chinese Solenoid 15 1472 May 10, 2010
by treymd
avrisp mkii circuit 4 2461 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1452 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 2711 May 07, 2010
by rajabalu21
Simple Power Switch 6 1146 May 05, 2010
by avicell
I can haz speed! 3 1360 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2339 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 1966 April 21, 2010
by bretm
Help with choosing the right resistor 10 2026 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2719 April 15, 2010
by bretm
Resistor 4 1174 April 15, 2010
by mongo
MCU digital input pins 3 1052 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1574 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5178 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 2879 March 28, 2010
by carlhako
Laptop ground safety question 3 1540 March 27, 2010
by ese
LM34 R-C Damper 5 1734 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1546 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1244 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2511 March 23, 2010
by ese
constant system reset 3 1150 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1416 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2115 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 1917 March 17, 2010
by Frozenlock
What is -VS? 6 1655 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 2877 March 04, 2010
by treymd
Using MCU to connect two wires 3 1564 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 3780 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1388 March 02, 2010
by Solorbob
Deciphering power resistors 11 1470 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1354 March 01, 2010
by nrotstan
Understanding LEDs 16 2586 March 01, 2010
by michaeldallas
What's the part I need? 5 1288 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 5627 February 23, 2010
by rajabalu21
Too much power? 14 1927 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2494 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1653 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 4388 February 18, 2010
by Rick_S
Serial port interface circuit 2 2159 February 17, 2010
by mongo
OBDII project 3 1418 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2370 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 2837 February 13, 2010
by BobaMosfet
Digital pots 5 1422 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1573 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2449 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 1975 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 2797 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1679 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2456 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4033 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 1915 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1500 December 27, 2009
by jgauthier
Servo Signal Noise 2 1263 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3339 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5374 December 10, 2009
by georgio
Relays and transistors 12 5041 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 3759 December 09, 2009
by Rick_S
IR Detector 7 2314 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2031 November 19, 2009
by mikedoug
Debug with lcd 6 1838 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1850 November 15, 2009
by tech20
Understanding output pin characteristics 4 1450 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3078 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1745 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 22576 October 30, 2009
by BobaMosfet
DIY header unit 2 2068 October 10, 2009
by rusirius
Thermostat Logging 6 2251 October 09, 2009
by luke
Understanding transistors 6 2844 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5698 October 07, 2009
by mikedoug
Currant booster 3 1318 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 1881 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 4878 August 27, 2009
by hevans
Which LED? 14 1925 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2601 August 07, 2009
by mongo
pull up, pull down resistors 7 11724 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5044 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3213 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2811 July 07, 2009
by sector0
Reset switch for circuit 3 1742 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 23624 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 1954 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1759 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1799 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2315 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1691 May 06, 2009
by paulip

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Did you know that sound travels via pressure waves in the air, and you can make these with a piezoelectric buzzer? Learn more...