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Basic Electronics

NerdKits » Forums » Basic Electronics (454 threads, 3945 posts)
Thread Posts Views Last Post
Need Diode Data Sheets 3 8823 July 27, 2019
by BobaMosfet
mosfet control during start up 5 8216 June 08, 2017
by BobaMosfet
Turn Vac on when tool turns on 7 6942 April 12, 2016
by Ralphxyz
USBasp Help! 3 5846 October 22, 2015
by sask55
Would someone explain Proximity Sensor? 19 8084 May 04, 2015
by mongo
Need to replace Wall Watt 16 5343 May 02, 2015
by Ralphxyz
Connecting Mosfet 10 5004 April 10, 2015
by Noter
My new 3D Printer 44 20571 April 07, 2015
by Rick_S
AtMega 644 2 5061 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 4103 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 4780 June 02, 2014
by JKITSON
Automated programming mode? 9 5057 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 4632 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 4675 January 28, 2014
by lailai
What kind of error is this? 4 4473 January 23, 2014
by Noter
How to double a DC voltage? 20 11865 January 12, 2014
by JKITSON
Is the code the driver? 2 4353 January 12, 2014
by Ralphxyz
Miniature headers 6 4575 January 01, 2014
by Ralphxyz
BLDC 8 4659 December 23, 2013
by esoderberg
I need help finding a terminal. 17 5254 November 26, 2013
by Rick_S
GLCD SPI problems 14 8518 November 10, 2013
by andyi
Moving on... 7 4471 November 08, 2013
by Pr0ject
Power supply questions 4 6032 October 31, 2013
by sask55
OLED 4 4229 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 16230 September 22, 2013
by sask55
Opto Interrupter once again 14 8909 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 4643 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 11641 September 02, 2013
by Ralphxyz
USB cable specifications 7 6174 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 5160 August 27, 2013
by Affarram
XMEGA Breakout 8 5517 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 4199 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 4866 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 4912 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 11282 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 15906 June 18, 2013
by Noter
Two Wrongs Make it Right 3 4190 May 22, 2013
by meltbox360
accurate time for a real time clock 5 4803 April 08, 2013
by pcbolt
Using diode to drop voltage 12 66199 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 3994 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 4550 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 8719 March 14, 2013
by mongo
Current vs Voltage 8 5624 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 5212 March 09, 2013
by lnino
Electric current 2 3991 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 6927 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 9676 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 9185 February 28, 2013
by BobaMosfet
Control electronic door opener 15 5072 February 24, 2013
by lnino
Relay Question 27 8324 February 19, 2013
by Noter
Rotary Encoder how to?? 21 8009 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 5496 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 5370 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 5142 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 4732 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 5393 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 4721 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 5549 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 4068 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 4143 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 4625 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 10164 November 18, 2012
by carlhako
SPI slave clock 6 4860 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 4245 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 31097 October 23, 2012
by Noter
NPN circuit connection quandry 4 4821 September 24, 2012
by edb
Simple I/O circuit 4 4478 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 4258 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 3976 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 6783 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 4471 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 6854 September 13, 2012
by dan_engbers
Electronics simulation 8 5110 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 7244 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 4384 August 20, 2012
by rblalock
louder sound 2 4151 August 18, 2012
by mongo
connector or cable for LCD display? 4 4367 August 13, 2012
by missle3944
Powering L.E.Ds 5 4502 August 09, 2012
by BobaMosfet
Wires in U.K 5 4969 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 4879 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 7860 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 7532 July 25, 2012
by bretm
Stepper Motor Direction Control 12 5330 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 22834 July 21, 2012
by lnino
um help 6 3957 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 5010 July 18, 2012
by Ralphxyz
help me 11 4866 July 03, 2012
by Rick_S
Crystal Oscillator question 2 4257 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 5569 June 24, 2012
by Ralphxyz
HELP 3 4011 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 14975 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 4119 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 6048 June 17, 2012
by RogerFL
Programmable current source 6 6077 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 5636 June 11, 2012
by mongo
HELP 6 4339 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 4738 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 51903 May 24, 2012
by Ralphxyz
i need a code 8 4742 May 15, 2012
by pcbolt
Clock Accuracy 30 9407 May 14, 2012
by HexManiac
Relays and Controlling them 9 4711 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 4981 May 09, 2012
by RogerFL
Powering your NerdKit 7 4567 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 4585 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 7816 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 4990 April 24, 2012
by pcbolt
Programs will not run 6 4477 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 5111 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 4775 April 09, 2012
by Ralphxyz
Path Lights controller 2 4347 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 4462 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 4993 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 4556 April 01, 2012
by JamesFysh
Question on LCD screen 5 4557 March 30, 2012
by billtaichi
Is this Capaciator Good 4 4523 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 5848 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 5458 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 9174 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 4644 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 5891 March 15, 2012
by mongo
Digital servo issues! 9 5160 March 15, 2012
by Rick_S
Brushless motor control 16 5503 March 12, 2012
by hevans
Windows not detecting device 3 4297 March 10, 2012
by hevans
Voltage throught MCU 5 4309 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 20194 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 11918 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 21189 March 01, 2012
by hevans
Up and running... 3 4104 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 4769 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 5121 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 4349 February 24, 2012
by Rick_S
programming lcd trubs 7 4463 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 5132 February 18, 2012
by Rick_S
Oscilloscope 15 6408 February 18, 2012
by Osarus
How far away can a LM34 be? 16 10914 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 5560 February 14, 2012
by Ralphxyz
It's true, we forget... 18 4746 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 11522 February 09, 2012
by mongo
Data transmission 3 5298 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 5106 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 6682 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 4594 February 03, 2012
by BobaMosfet
connencting two ics to port 3 4146 January 31, 2012
by tchilzer2
H bridge questions 6 4930 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 4682 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 5107 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 5296 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 8426 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 4968 January 15, 2012
by Rick_S
Source of power? 19 5099 January 13, 2012
by mongo
symbol defined please? 4 4781 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 18110 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 4683 January 06, 2012
by boxvic
Basic LED circuit properties 8 4909 January 06, 2012
by boxvic
Getting Started 3 4376 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 5571 January 02, 2012
by bodangly
SMD reflow 16 5677 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 4635 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 5300 December 23, 2011
by BobaMosfet
Potentiometer 8 6263 December 23, 2011
by huzbum
Fun with Op-Amps 3 6501 December 22, 2011
by treymd
Do I need an H-Bridge? 14 5562 December 19, 2011
by n1cl3
Odessy of the minds 5 4827 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 4201 November 27, 2011
by sazD
Initial Load 2 4862 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 5583 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 6264 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 4931 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 10078 November 10, 2011
by jfbrink
Servo Squitter Project 13 4670 November 09, 2011
by Heed
how do i run a program 4 4233 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 4493 November 07, 2011
by Heed
Motor control question 2 4276 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 9967 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 4545 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 4421 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 96744 October 24, 2011
by glendon
Measuring Capacitance 9 5976 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 4576 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 6336 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 23010 October 16, 2011
by sask55
RxD / TxD Questions 10 7807 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 4659 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 4557 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 4848 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 4352 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 13818 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 6030 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 24498 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 13195 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 4289 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 7861 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 13947 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 8972 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 5412 September 01, 2011
by BobaMosfet
Dim LED 3 4241 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 4759 August 23, 2011
by Twarter369
Easy Transistor Question 4 5398 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 7162 August 18, 2011
by Ralphxyz
Building a coil?? 12 7170 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 4662 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 4310 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 4148 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 4084 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 24202 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 5416 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 4818 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 4535 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 4581 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 7355 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 4237 July 17, 2011
by codenamejupiterx
avr macpack 3 4607 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 4603 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 4694 July 13, 2011
by BobaMosfet
Battery clip wires 3 4154 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 4039 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 4336 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 4574 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 5024 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 25337 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 4553 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 4786 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 6878 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 4821 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 4845 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 4738 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 5311 June 06, 2011
by mja
A couple of questions 3 4451 June 06, 2011
by Ralphxyz
How much should I strip? 3 4523 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 5014 June 01, 2011
by hevans
Motor Control/MCU power bus 5 4408 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 4738 May 29, 2011
by Rick_S
Digital Input Question 4 4474 May 28, 2011
by frankdwest
PCB arrived 20 4463 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 5104 May 24, 2011
by gcharris
Calculating bypass capacitor 6 24108 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 5055 May 09, 2011
by Noter
IR current 6 4760 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 5483 May 04, 2011
by hariharan
Heat sensors 21 5850 May 04, 2011
by Hexorg
error 1 2 4359 May 02, 2011
by hevans
Transistor vs mosfet 13 12616 May 01, 2011
by Noter
PCB trace width calculator 3 5924 April 24, 2011
by esoderberg
OLED display 10 5635 April 23, 2011
by Rick_S
Power Supplies 17 6186 April 22, 2011
by BobBolinger
LCD & battery&USB 4 4285 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 4988 April 21, 2011
by Rick_S
ADC Theremin Help... 1 4430 April 20, 2011
by jasongillikin
RF and oscoliscope 2 5459 April 19, 2011
by mongo
Connecting to external control voltages 4 4411 April 19, 2011
by bretm
IR current question 7 4530 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 5317 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 5510 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 4781 April 10, 2011
by uml_12
Basic projects 3 4452 April 09, 2011
by mongo
REFLOW oven 22 7409 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 14727 April 07, 2011
by bretm
unexpected MCU rebooting 82 9442 April 05, 2011
by sask55
REFLOW Soldering 3 5397 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 4751 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 7091 March 30, 2011
by bretm
Black Display on LCD 6 4721 March 28, 2011
by Druidman
32kHz clock 2 4377 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 11568 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 12116 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 6588 March 16, 2011
by mongo
LCD problem 3 4766 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 5381 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 5465 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 4474 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 8178 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 5413 February 26, 2011
by amartinez
Why does my led light without the battery? 2 5358 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 12407 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 9133 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 6039 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 9488 February 19, 2011
by Lusitania
My first Impression 6 4875 February 16, 2011
by devinsbusiness
Understanding battery life 3 6180 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 5777 February 13, 2011
by sask55
Using Devices With Different Voltages 11 5413 February 05, 2011
by BobaMosfet
High voltage lines 26 7583 February 02, 2011
by mongo
USB 3 4429 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 5501 February 02, 2011
by Jalex
Alternating LED circuit 4 5381 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 6712 January 31, 2011
by il1019
Affordable oscilloscopes 43 14941 January 27, 2011
by BStory
"And"gate unfinished thought 2 4575 January 27, 2011
by Hexorg
replace MCU? 30 9657 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 5140 January 25, 2011
by Ralphxyz
Multimeter! 12 7425 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 6076 January 25, 2011
by Jalex
My LED Cube so far 25 10855 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 5868 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 5308 January 18, 2011
by dgikuljot
Counting 5 4521 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 9173 January 17, 2011
by bretm
Programming 5 5396 January 14, 2011
by Ralphxyz
Induction loop actuator 7 5589 January 11, 2011
by Yourself
Begining 7 5670 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 6056 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 5390 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 4699 January 09, 2011
by mrobbins
UART operating at 3.3V 1 5235 January 06, 2011
by Mujda
Data input voltage 6 5236 January 03, 2011
by Rick_S
MOSFET Question 7 5386 December 31, 2010
by Keyster
Transistor as a switch 5 5432 December 29, 2010
by Hexorg
Resistors 5 5788 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 10718 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 5642 December 28, 2010
by BobaMosfet
Relay ratings 2 4954 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 20292 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 4789 December 17, 2010
by mongo
Power Rectifier 7 7080 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 7421 December 14, 2010
by danuke
This a decent oscilloscope? 8 5197 December 14, 2010
by danuke
Do resistors in series really add up? 8 6617 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 6016 December 09, 2010
by bretm
L293 H-Bridge 15 6707 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 6920 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 7084 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 5995 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 6516 November 24, 2010
by BobaMosfet
Op-amp not working 6 6787 November 24, 2010
by BobaMosfet
Python questions 4 5743 November 21, 2010
by tkopriva
CE Amp design 5 5295 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 5196 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 5057 November 05, 2010
by Mujda
PC4 not working?! 8 4910 November 04, 2010
by hapshetsut
Amplifiers 4 4866 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 5723 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 5811 October 04, 2010
by Scythium
radio interference from NerdKit 11 4946 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 9573 September 14, 2010
by Ralphxyz
solar project with light sensors 7 5419 September 11, 2010
by akajester
QFP and dreadboard 2 5323 September 02, 2010
by bretm
Getting power to the spinning part... 5 5181 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 13128 August 30, 2010
by Ralphxyz
morse code decoder 2 5296 August 26, 2010
by jonathan_m
Connecting to Computer 3 5279 August 25, 2010
by awesome
555 astable on breadboard 12 6790 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 4900 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 5399 August 19, 2010
by hevans
mosfet 3 4661 August 13, 2010
by hevans
Good material on learning electronics. 8 5660 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 4545 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 7241 August 02, 2010
by mrobbins
More batteries = more voltage? 3 6481 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 9867 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 6956 July 02, 2010
by mongo
Electro Cardio Gram 4 5832 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 4602 June 12, 2010
by Wobbler
Voltage Regulator 20 6326 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 5876 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 6540 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 6196 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 5384 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 4611 June 06, 2010
by Kafke
TSSOP IC! 4 5390 June 03, 2010
by mrobbins
AVcc 2 5620 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 4820 May 31, 2010
by hevans
Cable Driver 2 4503 May 31, 2010
by mongo
Best 9V adapter to use 2 4939 May 28, 2010
by mongo
Unidirectional microphones 5 5188 May 27, 2010
by mongo
Servo question 3 4658 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 5351 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 5206 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 6882 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 11824 May 21, 2010
by hevans
Chinese Solenoid 15 5180 May 10, 2010
by treymd
avrisp mkii circuit 4 6385 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 4725 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 10058 May 07, 2010
by rajabalu21
Simple Power Switch 6 4820 May 05, 2010
by avicell
I can haz speed! 3 5168 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 6668 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 5509 April 21, 2010
by bretm
Help with choosing the right resistor 10 6610 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 11357 April 15, 2010
by bretm
Resistor 4 4523 April 15, 2010
by mongo
MCU digital input pins 3 4726 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 5009 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 10898 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 6967 March 28, 2010
by carlhako
Laptop ground safety question 3 5046 March 27, 2010
by ese
LM34 R-C Damper 5 6621 March 24, 2010
by BobaMosfet
NerdKits & USB 5 5342 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 4648 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 6658 March 23, 2010
by ese
constant system reset 3 4537 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 5305 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 6384 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 5636 March 17, 2010
by Frozenlock
What is -VS? 6 8698 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 6449 March 04, 2010
by treymd
Using MCU to connect two wires 3 5533 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 10293 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 4962 March 02, 2010
by Solorbob
Deciphering power resistors 11 5348 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 4735 March 01, 2010
by nrotstan
Understanding LEDs 16 7946 March 01, 2010
by michaeldallas
What's the part I need? 5 4842 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 11876 February 23, 2010
by rajabalu21
Too much power? 14 5590 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 6256 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 6199 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 13708 February 18, 2010
by Rick_S
Serial port interface circuit 2 5741 February 17, 2010
by mongo
OBDII project 3 4805 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 8405 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 7559 February 13, 2010
by BobaMosfet
Digital pots 5 5033 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 5358 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 6239 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 7640 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 7777 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 5607 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 7375 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 11182 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 5978 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 5189 December 27, 2009
by jgauthier
Servo Signal Noise 2 4749 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 8122 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 11571 December 10, 2009
by georgio
Relays and transistors 12 9562 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 9628 December 09, 2009
by Rick_S
IR Detector 7 9142 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 5805 November 19, 2009
by mikedoug
Debug with lcd 6 5759 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 5235 November 15, 2009
by tech20
Understanding output pin characteristics 4 5130 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 7131 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 5412 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 49034 October 30, 2009
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DIY header unit 2 5584 October 10, 2009
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Thermostat Logging 6 7245 October 09, 2009
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Understanding transistors 6 6935 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 10910 October 07, 2009
by mikedoug
Currant booster 3 4749 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 5734 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 13758 August 27, 2009
by hevans
Which LED? 14 5493 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 6529 August 07, 2009
by mongo
pull up, pull down resistors 7 17938 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 11897 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 7773 August 05, 2009
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Power MOSFET - Understanding and headaches 4 7161 July 07, 2009
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Reset switch for circuit 3 5400 June 27, 2009
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Online circuit simulator/intuition builder 2 32026 June 16, 2009
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I don't understand the cap on the MC power supply 12 6533 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 5293 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 5446 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 5937 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 5275 May 06, 2009
by paulip

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Did you know that LEDs (light emitting diodes) only conduct current in one direction, like normal diodes? Learn more...