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Basic Electronics

NerdKits » Forums » Basic Electronics (454 threads, 3945 posts)
Thread Posts Views Last Post
Need Diode Data Sheets 3 8690 July 27, 2019
by BobaMosfet
mosfet control during start up 5 8101 June 08, 2017
by BobaMosfet
Turn Vac on when tool turns on 7 6842 April 12, 2016
by Ralphxyz
USBasp Help! 3 5743 October 22, 2015
by sask55
Would someone explain Proximity Sensor? 19 7961 May 04, 2015
by mongo
Need to replace Wall Watt 16 5256 May 02, 2015
by Ralphxyz
Connecting Mosfet 10 4920 April 10, 2015
by Noter
My new 3D Printer 44 20486 April 07, 2015
by Rick_S
AtMega 644 2 4999 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 4047 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 4687 June 02, 2014
by JKITSON
Automated programming mode? 9 4976 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 4561 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 4573 January 28, 2014
by lailai
What kind of error is this? 4 4416 January 23, 2014
by Noter
How to double a DC voltage? 20 11764 January 12, 2014
by JKITSON
Is the code the driver? 2 4259 January 12, 2014
by Ralphxyz
Miniature headers 6 4518 January 01, 2014
by Ralphxyz
BLDC 8 4585 December 23, 2013
by esoderberg
I need help finding a terminal. 17 5148 November 26, 2013
by Rick_S
GLCD SPI problems 14 8432 November 10, 2013
by andyi
Moving on... 7 4390 November 08, 2013
by Pr0ject
Power supply questions 4 5920 October 31, 2013
by sask55
OLED 4 4146 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 16076 September 22, 2013
by sask55
Opto Interrupter once again 14 8791 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 4583 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 11513 September 02, 2013
by Ralphxyz
USB cable specifications 7 6019 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 5053 August 27, 2013
by Affarram
XMEGA Breakout 8 5426 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 4131 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 4800 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 4828 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 11047 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 15697 June 18, 2013
by Noter
Two Wrongs Make it Right 3 4113 May 22, 2013
by meltbox360
accurate time for a real time clock 5 4735 April 08, 2013
by pcbolt
Using diode to drop voltage 12 65959 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 3938 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 4449 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 8616 March 14, 2013
by mongo
Current vs Voltage 8 5548 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 5149 March 09, 2013
by lnino
Electric current 2 3928 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 6868 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 9557 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 8994 February 28, 2013
by BobaMosfet
Control electronic door opener 15 4989 February 24, 2013
by lnino
Relay Question 27 8235 February 19, 2013
by Noter
Rotary Encoder how to?? 21 7903 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 5413 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 5312 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 5059 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 4674 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 5287 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 4635 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 5472 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 3998 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 4090 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 4578 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 9983 November 18, 2012
by carlhako
SPI slave clock 6 4778 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 4184 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 30853 October 23, 2012
by Noter
NPN circuit connection quandry 4 4754 September 24, 2012
by edb
Simple I/O circuit 4 4405 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 4194 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 3867 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 6633 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 4414 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 6789 September 13, 2012
by dan_engbers
Electronics simulation 8 5056 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 7165 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 4319 August 20, 2012
by rblalock
louder sound 2 4094 August 18, 2012
by mongo
connector or cable for LCD display? 4 4310 August 13, 2012
by missle3944
Powering L.E.Ds 5 4437 August 09, 2012
by BobaMosfet
Wires in U.K 5 4912 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 4815 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 7753 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 7453 July 25, 2012
by bretm
Stepper Motor Direction Control 12 5231 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 22739 July 21, 2012
by lnino
um help 6 3909 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 4943 July 18, 2012
by Ralphxyz
help me 11 4795 July 03, 2012
by Rick_S
Crystal Oscillator question 2 4195 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 5483 June 24, 2012
by Ralphxyz
HELP 3 3947 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 14854 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 4053 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 5978 June 17, 2012
by RogerFL
Programmable current source 6 5955 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 5569 June 11, 2012
by mongo
HELP 6 4275 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 4656 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 50535 May 24, 2012
by Ralphxyz
i need a code 8 4675 May 15, 2012
by pcbolt
Clock Accuracy 30 9320 May 14, 2012
by HexManiac
Relays and Controlling them 9 4637 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 4914 May 09, 2012
by RogerFL
Powering your NerdKit 7 4493 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 4519 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 7723 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 4934 April 24, 2012
by pcbolt
Programs will not run 6 4405 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 5026 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 4719 April 09, 2012
by Ralphxyz
Path Lights controller 2 4273 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 4392 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 4911 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 4487 April 01, 2012
by JamesFysh
Question on LCD screen 5 4496 March 30, 2012
by billtaichi
Is this Capaciator Good 4 4443 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 5746 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 5376 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 9078 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 4585 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 5740 March 15, 2012
by mongo
Digital servo issues! 9 5085 March 15, 2012
by Rick_S
Brushless motor control 16 5437 March 12, 2012
by hevans
Windows not detecting device 3 4230 March 10, 2012
by hevans
Voltage throught MCU 5 4243 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 20056 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 11804 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 20958 March 01, 2012
by hevans
Up and running... 3 4037 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 4701 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 5059 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 4278 February 24, 2012
by Rick_S
programming lcd trubs 7 4345 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 5055 February 18, 2012
by Rick_S
Oscilloscope 15 6329 February 18, 2012
by Osarus
How far away can a LM34 be? 16 10809 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 5496 February 14, 2012
by Ralphxyz
It's true, we forget... 18 4682 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 11262 February 09, 2012
by mongo
Data transmission 3 5242 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 5044 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 6614 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 4530 February 03, 2012
by BobaMosfet
connencting two ics to port 3 4090 January 31, 2012
by tchilzer2
H bridge questions 6 4866 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 4604 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 5012 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 5232 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 8346 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 4879 January 15, 2012
by Rick_S
Source of power? 19 5012 January 13, 2012
by mongo
symbol defined please? 4 4724 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 17934 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 4624 January 06, 2012
by boxvic
Basic LED circuit properties 8 4837 January 06, 2012
by boxvic
Getting Started 3 4319 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 5505 January 02, 2012
by bodangly
SMD reflow 16 5601 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 4570 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 5248 December 23, 2011
by BobaMosfet
Potentiometer 8 6172 December 23, 2011
by huzbum
Fun with Op-Amps 3 6416 December 22, 2011
by treymd
Do I need an H-Bridge? 14 5489 December 19, 2011
by n1cl3
Odessy of the minds 5 4772 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 4133 November 27, 2011
by sazD
Initial Load 2 4803 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 5501 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 6191 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 4865 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 9991 November 10, 2011
by jfbrink
Servo Squitter Project 13 4603 November 09, 2011
by Heed
how do i run a program 4 4180 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 4434 November 07, 2011
by Heed
Motor control question 2 4228 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 9834 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 4473 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 4362 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 96258 October 24, 2011
by glendon
Measuring Capacitance 9 5898 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 4521 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 6261 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 22791 October 16, 2011
by sask55
RxD / TxD Questions 10 7685 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 4604 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 4498 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 4789 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 4297 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 13580 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 5961 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 24377 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 13027 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 4233 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 7781 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 13776 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 8888 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 5340 September 01, 2011
by BobaMosfet
Dim LED 3 4171 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 4698 August 23, 2011
by Twarter369
Easy Transistor Question 4 5324 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 7058 August 18, 2011
by Ralphxyz
Building a coil?? 12 7089 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 4601 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 4248 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 4077 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 4023 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 24082 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 5354 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 4761 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 4474 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 4516 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 7286 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 4170 July 17, 2011
by codenamejupiterx
avr macpack 3 4547 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 4529 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 4615 July 13, 2011
by BobaMosfet
Battery clip wires 3 4110 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 3971 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 4273 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 4516 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 4924 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 25208 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 4484 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 4720 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 6800 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 4750 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 4772 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 4685 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 5226 June 06, 2011
by mja
A couple of questions 3 4389 June 06, 2011
by Ralphxyz
How much should I strip? 3 4459 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 4953 June 01, 2011
by hevans
Motor Control/MCU power bus 5 4334 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 4664 May 29, 2011
by Rick_S
Digital Input Question 4 4407 May 28, 2011
by frankdwest
PCB arrived 20 4401 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 5047 May 24, 2011
by gcharris
Calculating bypass capacitor 6 23958 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 4989 May 09, 2011
by Noter
IR current 6 4706 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 5409 May 04, 2011
by hariharan
Heat sensors 21 5786 May 04, 2011
by Hexorg
error 1 2 4257 May 02, 2011
by hevans
Transistor vs mosfet 13 12507 May 01, 2011
by Noter
PCB trace width calculator 3 5864 April 24, 2011
by esoderberg
OLED display 10 5565 April 23, 2011
by Rick_S
Power Supplies 17 6125 April 22, 2011
by BobBolinger
LCD & battery&USB 4 4232 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 4940 April 21, 2011
by Rick_S
ADC Theremin Help... 1 4369 April 20, 2011
by jasongillikin
RF and oscoliscope 2 5392 April 19, 2011
by mongo
Connecting to external control voltages 4 4353 April 19, 2011
by bretm
IR current question 7 4465 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 5255 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 5432 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 4718 April 10, 2011
by uml_12
Basic projects 3 4390 April 09, 2011
by mongo
REFLOW oven 22 7333 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 14601 April 07, 2011
by bretm
unexpected MCU rebooting 82 9340 April 05, 2011
by sask55
REFLOW Soldering 3 5310 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 4687 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 7021 March 30, 2011
by bretm
Black Display on LCD 6 4663 March 28, 2011
by Druidman
32kHz clock 2 4313 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 11460 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 11940 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 6506 March 16, 2011
by mongo
LCD problem 3 4710 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 5306 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 5412 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 4419 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 8075 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 5345 February 26, 2011
by amartinez
Why does my led light without the battery? 2 5285 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 12342 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 9012 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 5969 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 9420 February 19, 2011
by Lusitania
My first Impression 6 4815 February 16, 2011
by devinsbusiness
Understanding battery life 3 6087 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 5712 February 13, 2011
by sask55
Using Devices With Different Voltages 11 5337 February 05, 2011
by BobaMosfet
High voltage lines 26 7501 February 02, 2011
by mongo
USB 3 4372 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 5424 February 02, 2011
by Jalex
Alternating LED circuit 4 5314 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 6643 January 31, 2011
by il1019
Affordable oscilloscopes 43 14722 January 27, 2011
by BStory
"And"gate unfinished thought 2 4501 January 27, 2011
by Hexorg
replace MCU? 30 9534 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 5065 January 25, 2011
by Ralphxyz
Multimeter! 12 7359 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 6003 January 25, 2011
by Jalex
My LED Cube so far 25 10788 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 5825 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 5244 January 18, 2011
by dgikuljot
Counting 5 4459 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 9095 January 17, 2011
by bretm
Programming 5 5319 January 14, 2011
by Ralphxyz
Induction loop actuator 7 5525 January 11, 2011
by Yourself
Begining 7 5600 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 5991 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 5331 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 4628 January 09, 2011
by mrobbins
UART operating at 3.3V 1 5167 January 06, 2011
by Mujda
Data input voltage 6 5163 January 03, 2011
by Rick_S
MOSFET Question 7 5321 December 31, 2010
by Keyster
Transistor as a switch 5 5351 December 29, 2010
by Hexorg
Resistors 5 5715 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 10600 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 5571 December 28, 2010
by BobaMosfet
Relay ratings 2 4890 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 20198 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 4730 December 17, 2010
by mongo
Power Rectifier 7 6682 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 7333 December 14, 2010
by danuke
This a decent oscilloscope? 8 5130 December 14, 2010
by danuke
Do resistors in series really add up? 8 6529 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 5942 December 09, 2010
by bretm
L293 H-Bridge 15 6625 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 6824 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 6993 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 5921 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 6426 November 24, 2010
by BobaMosfet
Op-amp not working 6 6717 November 24, 2010
by BobaMosfet
Python questions 4 5687 November 21, 2010
by tkopriva
CE Amp design 5 5207 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 5131 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 4971 November 05, 2010
by Mujda
PC4 not working?! 8 4834 November 04, 2010
by hapshetsut
Amplifiers 4 4808 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 5657 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 5748 October 04, 2010
by Scythium
radio interference from NerdKit 11 4852 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 9490 September 14, 2010
by Ralphxyz
solar project with light sensors 7 5356 September 11, 2010
by akajester
QFP and dreadboard 2 5254 September 02, 2010
by bretm
Getting power to the spinning part... 5 5126 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 13037 August 30, 2010
by Ralphxyz
morse code decoder 2 5240 August 26, 2010
by jonathan_m
Connecting to Computer 3 5212 August 25, 2010
by awesome
555 astable on breadboard 12 6732 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 4833 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 5343 August 19, 2010
by hevans
mosfet 3 4609 August 13, 2010
by hevans
Good material on learning electronics. 8 5598 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 4485 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 7146 August 02, 2010
by mrobbins
More batteries = more voltage? 3 6415 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 9755 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 6893 July 02, 2010
by mongo
Electro Cardio Gram 4 5753 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 4536 June 12, 2010
by Wobbler
Voltage Regulator 20 6255 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 5789 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 6462 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 6120 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 5309 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 4553 June 06, 2010
by Kafke
TSSOP IC! 4 5322 June 03, 2010
by mrobbins
AVcc 2 5555 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 4762 May 31, 2010
by hevans
Cable Driver 2 4433 May 31, 2010
by mongo
Best 9V adapter to use 2 4878 May 28, 2010
by mongo
Unidirectional microphones 5 5117 May 27, 2010
by mongo
Servo question 3 4592 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 5293 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 5131 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 6815 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 11690 May 21, 2010
by hevans
Chinese Solenoid 15 5104 May 10, 2010
by treymd
avrisp mkii circuit 4 6331 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 4663 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 9956 May 07, 2010
by rajabalu21
Simple Power Switch 6 4758 May 05, 2010
by avicell
I can haz speed! 3 5097 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 6603 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 5435 April 21, 2010
by bretm
Help with choosing the right resistor 10 6544 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 11175 April 15, 2010
by bretm
Resistor 4 4462 April 15, 2010
by mongo
MCU digital input pins 3 4646 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 4957 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 10828 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 6905 March 28, 2010
by carlhako
Laptop ground safety question 3 4983 March 27, 2010
by ese
LM34 R-C Damper 5 6558 March 24, 2010
by BobaMosfet
NerdKits & USB 5 5283 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 4552 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 6593 March 23, 2010
by ese
constant system reset 3 4474 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 5238 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 6303 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 5578 March 17, 2010
by Frozenlock
What is -VS? 6 8634 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 6396 March 04, 2010
by treymd
Using MCU to connect two wires 3 5472 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 10099 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 4893 March 02, 2010
by Solorbob
Deciphering power resistors 11 5274 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 4664 March 01, 2010
by nrotstan
Understanding LEDs 16 7845 March 01, 2010
by michaeldallas
What's the part I need? 5 4780 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 11801 February 23, 2010
by rajabalu21
Too much power? 14 5517 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 6197 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 6121 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 13567 February 18, 2010
by Rick_S
Serial port interface circuit 2 5676 February 17, 2010
by mongo
OBDII project 3 4741 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 8305 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 7474 February 13, 2010
by BobaMosfet
Digital pots 5 4980 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 5285 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 6131 January 23, 2010
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How to stop a flip flop counter from... hum.... counting? 4 7556 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 7695 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 5551 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 7275 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 11078 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 5901 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 5130 December 27, 2009
by jgauthier
Servo Signal Noise 2 4697 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 8034 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 11487 December 10, 2009
by georgio
Relays and transistors 12 9491 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 9544 December 09, 2009
by Rick_S
IR Detector 7 9028 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 5741 November 19, 2009
by mikedoug
Debug with lcd 6 5688 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 5175 November 15, 2009
by tech20
Understanding output pin characteristics 4 5054 November 13, 2009
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Schematics for LED Heart Project? 12 7015 November 12, 2009
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How do you wire a transistor (2N7000 or 2N3904) 7 48844 October 30, 2009
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DIY header unit 2 5534 October 10, 2009
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Thermostat Logging 6 7164 October 09, 2009
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Understanding transistors 6 6867 October 08, 2009
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Power from USB: current limiter with an op-amp 8 10836 October 07, 2009
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Currant booster 3 4680 October 07, 2009
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Witch two wires 5 5666 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 13657 August 27, 2009
by hevans
Which LED? 14 5425 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 6458 August 07, 2009
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pull up, pull down resistors 7 17854 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 11778 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 7705 August 05, 2009
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Power MOSFET - Understanding and headaches 4 7092 July 07, 2009
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Reset switch for circuit 3 5346 June 27, 2009
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Online circuit simulator/intuition builder 2 31966 June 16, 2009
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I don't understand the cap on the MC power supply 12 6461 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 5233 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 5370 May 31, 2009
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Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 5859 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 5194 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...