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Basic Electronics

NerdKits » Forums » Basic Electronics (453 threads, 3939 posts)
Thread Posts Views Last Post
Turn Vac on when tool turns on 7 2693 April 12, 2016
by Ralphxyz
USBasp Help! 3 1724 October 22, 2015
by sask55
Would someone explain Proximity Sensor? 19 3466 May 04, 2015
by mongo
Need to replace Wall Watt 16 1059 May 02, 2015
by Ralphxyz
Connecting Mosfet 10 1521 April 10, 2015
by Noter
My new 3D Printer 44 15477 April 07, 2015
by Rick_S
AtMega 644 2 1746 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 1126 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 1304 June 02, 2014
by JKITSON
Automated programming mode? 9 1608 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 1433 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 1156 January 28, 2014
by lailai
What kind of error is this? 4 1364 January 23, 2014
by Noter
How to double a DC voltage? 20 5751 January 12, 2014
by JKITSON
Is the code the driver? 2 1093 January 12, 2014
by Ralphxyz
Miniature headers 6 1454 January 01, 2014
by Ralphxyz
BLDC 8 1354 December 23, 2013
by esoderberg
I need help finding a terminal. 17 1735 November 26, 2013
by Rick_S
GLCD SPI problems 14 3856 November 10, 2013
by andyi
Moving on... 7 1521 November 08, 2013
by Pr0ject
Power supply questions 4 1792 October 31, 2013
by sask55
OLED 4 1183 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 6021 September 22, 2013
by sask55
Opto Interrupter once again 14 3652 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 1323 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 6833 September 02, 2013
by Ralphxyz
USB cable specifications 7 1415 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 1572 August 27, 2013
by Affarram
XMEGA Breakout 8 1704 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 1138 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 1551 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 1606 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 5638 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 7647 June 18, 2013
by Noter
Two Wrongs Make it Right 3 1226 May 22, 2013
by meltbox360
accurate time for a real time clock 5 1618 April 08, 2013
by pcbolt
Using diode to drop voltage 12 35217 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 1077 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 1326 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 2853 March 14, 2013
by mongo
Current vs Voltage 8 1984 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 1846 March 09, 2013
by lnino
Electric current 2 1126 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 3634 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 3382 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 2925 February 28, 2013
by BobaMosfet
Control electronic door opener 15 1556 February 24, 2013
by lnino
Relay Question 27 4319 February 19, 2013
by Noter
Rotary Encoder how to?? 21 3499 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 1797 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 2075 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 1634 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 1585 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1914 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 1554 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 2287 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 1286 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 1350 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 1353 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 5840 November 18, 2012
by carlhako
SPI slave clock 6 1644 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 1343 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 17064 October 23, 2012
by Noter
NPN circuit connection quandry 4 1713 September 24, 2012
by edb
Simple I/O circuit 4 1420 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 1139 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 1073 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 2696 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 1539 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 3353 September 13, 2012
by dan_engbers
Electronics simulation 8 2005 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 3430 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 1446 August 20, 2012
by rblalock
louder sound 2 1246 August 18, 2012
by mongo
connector or cable for LCD display? 4 1380 August 13, 2012
by missle3944
Powering L.E.Ds 5 1475 August 09, 2012
by BobaMosfet
Wires in U.K 5 1604 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 1740 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 3334 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 3833 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1838 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 16255 July 21, 2012
by lnino
um help 6 1233 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 1647 July 18, 2012
by Ralphxyz
help me 11 1752 July 03, 2012
by Rick_S
Crystal Oscillator question 2 1321 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 2162 June 24, 2012
by Ralphxyz
HELP 3 1264 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 9292 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 1255 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 2309 June 17, 2012
by RogerFL
Programmable current source 6 2101 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 2136 June 11, 2012
by mongo
HELP 6 1408 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 1682 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 23142 May 24, 2012
by Ralphxyz
i need a code 8 1762 May 15, 2012
by pcbolt
Clock Accuracy 30 5055 May 14, 2012
by HexManiac
Relays and Controlling them 9 1704 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 2012 May 09, 2012
by RogerFL
Powering your NerdKit 7 1604 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 1510 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 2814 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 1680 April 24, 2012
by pcbolt
Programs will not run 6 1529 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1942 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 1689 April 09, 2012
by Ralphxyz
Path Lights controller 2 1505 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 1662 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1884 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 1681 April 01, 2012
by JamesFysh
Question on LCD screen 5 1562 March 30, 2012
by billtaichi
Is this Capaciator Good 4 1553 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 2880 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 2147 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 3755 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 1709 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 1876 March 15, 2012
by mongo
Digital servo issues! 9 1916 March 15, 2012
by Rick_S
Brushless motor control 16 2285 March 12, 2012
by hevans
Windows not detecting device 3 1447 March 10, 2012
by hevans
Voltage throught MCU 5 1425 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 14639 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 5782 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 7271 March 01, 2012
by hevans
Up and running... 3 1289 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 1638 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1950 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 1482 February 24, 2012
by Rick_S
programming lcd trubs 7 1528 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 2100 February 18, 2012
by Rick_S
Oscilloscope 15 3054 February 18, 2012
by Osarus
How far away can a LM34 be? 16 5880 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 2618 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1682 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 4436 February 09, 2012
by mongo
Data transmission 3 2004 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1931 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 2973 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 1530 February 03, 2012
by BobaMosfet
connencting two ics to port 3 1317 January 31, 2012
by tchilzer2
H bridge questions 6 1706 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1751 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1907 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 2089 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 4122 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1852 January 15, 2012
by Rick_S
Source of power? 19 1810 January 13, 2012
by mongo
symbol defined please? 4 1955 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 10647 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 1552 January 06, 2012
by boxvic
Basic LED circuit properties 8 1786 January 06, 2012
by boxvic
Getting Started 3 1568 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 2222 January 02, 2012
by bodangly
SMD reflow 16 2449 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1616 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 2129 December 23, 2011
by BobaMosfet
Potentiometer 8 2206 December 23, 2011
by huzbum
Fun with Op-Amps 3 2940 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1992 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1870 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1886 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 1455 November 27, 2011
by sazD
Initial Load 2 1820 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 2106 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 2919 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1937 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 5373 November 10, 2011
by jfbrink
Servo Squitter Project 13 1807 November 09, 2011
by Heed
how do i run a program 4 1484 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 1550 November 07, 2011
by Heed
Motor control question 2 1504 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 4229 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1694 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 1560 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 51951 October 24, 2011
by glendon
Measuring Capacitance 9 2814 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1781 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 2671 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 11330 October 16, 2011
by sask55
RxD / TxD Questions 10 3549 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1828 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1752 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 1490 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 1548 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 6298 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 2731 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 18862 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 4464 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 1525 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 4300 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 7114 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 5236 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1926 September 01, 2011
by BobaMosfet
Dim LED 3 1557 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1897 August 23, 2011
by Twarter369
Easy Transistor Question 4 2156 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 3175 August 18, 2011
by Ralphxyz
Building a coil?? 12 3123 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1823 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1596 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 1356 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 1347 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 13909 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 2270 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1609 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1703 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1659 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 3275 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1552 July 17, 2011
by codenamejupiterx
avr macpack 3 1604 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1763 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1718 July 13, 2011
by BobaMosfet
Battery clip wires 3 1469 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 1377 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 1436 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1765 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 2128 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 10360 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1730 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1654 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 3091 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1981 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1948 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1773 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1916 June 06, 2011
by mja
A couple of questions 3 1542 June 06, 2011
by Ralphxyz
How much should I strip? 3 1465 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1991 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1616 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1957 May 29, 2011
by Rick_S
Digital Input Question 4 1660 May 28, 2011
by frankdwest
PCB arrived 20 1704 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 2320 May 24, 2011
by gcharris
Calculating bypass capacitor 6 13392 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 2232 May 09, 2011
by Noter
IR current 6 2004 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 2636 May 04, 2011
by hariharan
Heat sensors 21 2724 May 04, 2011
by Hexorg
error 1 2 1663 May 02, 2011
by hevans
Transistor vs mosfet 13 8221 May 01, 2011
by Noter
PCB trace width calculator 3 2794 April 24, 2011
by esoderberg
OLED display 10 2165 April 23, 2011
by Rick_S
Power Supplies 17 3143 April 22, 2011
by BobBolinger
LCD & battery&USB 4 1558 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1974 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1577 April 20, 2011
by jasongillikin
RF and oscoliscope 2 2082 April 19, 2011
by mongo
Connecting to external control voltages 4 1817 April 19, 2011
by bretm
IR current question 7 1687 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 2268 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 2187 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1961 April 10, 2011
by uml_12
Basic projects 3 1732 April 09, 2011
by mongo
REFLOW oven 22 3894 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 7593 April 07, 2011
by bretm
unexpected MCU rebooting 82 5039 April 05, 2011
by sask55
REFLOW Soldering 3 2251 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1928 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 3906 March 30, 2011
by bretm
Black Display on LCD 6 1909 March 28, 2011
by Druidman
32kHz clock 2 1771 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 6306 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 5673 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 3157 March 16, 2011
by mongo
LCD problem 3 1833 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 2594 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 2568 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1826 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 3442 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 2408 February 26, 2011
by amartinez
Why does my led light without the battery? 2 2583 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 7810 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 4694 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 3054 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 5169 February 19, 2011
by Lusitania
My first Impression 6 1952 February 16, 2011
by devinsbusiness
Understanding battery life 3 3105 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2895 February 13, 2011
by sask55
Using Devices With Different Voltages 11 2409 February 05, 2011
by BobaMosfet
High voltage lines 26 3653 February 02, 2011
by mongo
USB 3 1784 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 2547 February 02, 2011
by Jalex
Alternating LED circuit 4 2323 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 3214 January 31, 2011
by il1019
Affordable oscilloscopes 43 9636 January 27, 2011
by BStory
"And"gate unfinished thought 2 1696 January 27, 2011
by Hexorg
replace MCU? 30 6000 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 2290 January 25, 2011
by Ralphxyz
Multimeter! 12 3932 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2957 January 25, 2011
by Jalex
My LED Cube so far 25 6649 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 2864 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 2243 January 18, 2011
by dgikuljot
Counting 5 1568 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 5328 January 17, 2011
by bretm
Programming 5 2247 January 14, 2011
by Ralphxyz
Induction loop actuator 7 2631 January 11, 2011
by Yourself
Begining 7 2316 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 2877 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 2535 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1807 January 09, 2011
by mrobbins
UART operating at 3.3V 1 2185 January 06, 2011
by Mujda
Data input voltage 6 2470 January 03, 2011
by Rick_S
MOSFET Question 7 2392 December 31, 2010
by Keyster
Transistor as a switch 5 2183 December 29, 2010
by Hexorg
Resistors 5 2700 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 6712 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 2412 December 28, 2010
by BobaMosfet
Relay ratings 2 1986 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 15071 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1931 December 17, 2010
by mongo
Power Rectifier 7 2196 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 3645 December 14, 2010
by danuke
This a decent oscilloscope? 8 2439 December 14, 2010
by danuke
Do resistors in series really add up? 8 3351 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 2702 December 09, 2010
by bretm
L293 H-Bridge 15 3286 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 3077 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 3625 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2767 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 3272 November 24, 2010
by BobaMosfet
Op-amp not working 6 3423 November 24, 2010
by BobaMosfet
Python questions 4 2889 November 21, 2010
by tkopriva
CE Amp design 5 2044 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 2367 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 2039 November 05, 2010
by Mujda
PC4 not working?! 8 1753 November 04, 2010
by hapshetsut
Amplifiers 4 2017 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 2721 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2802 October 04, 2010
by Scythium
radio interference from NerdKit 11 1964 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 5499 September 14, 2010
by Ralphxyz
solar project with light sensors 7 2538 September 11, 2010
by akajester
QFP and dreadboard 2 2264 September 02, 2010
by bretm
Getting power to the spinning part... 5 2439 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 8224 August 30, 2010
by Ralphxyz
morse code decoder 2 2722 August 26, 2010
by jonathan_m
Connecting to Computer 3 2492 August 25, 2010
by awesome
555 astable on breadboard 12 3910 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 2054 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 2446 August 19, 2010
by hevans
mosfet 3 2024 August 13, 2010
by hevans
Good material on learning electronics. 8 2200 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1858 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2801 August 02, 2010
by mrobbins
More batteries = more voltage? 3 3161 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 5803 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 3340 July 02, 2010
by mongo
Electro Cardio Gram 4 2726 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1945 June 12, 2010
by Wobbler
Voltage Regulator 20 3298 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 3122 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 3348 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 3225 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 2425 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1913 June 06, 2010
by Kafke
TSSOP IC! 4 2328 June 03, 2010
by mrobbins
AVcc 2 2721 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 2065 May 31, 2010
by hevans
Cable Driver 2 1810 May 31, 2010
by mongo
Best 9V adapter to use 2 2120 May 28, 2010
by mongo
Unidirectional microphones 5 2355 May 27, 2010
by mongo
Servo question 3 2063 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 2398 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 2307 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 3390 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 6110 May 21, 2010
by hevans
Chinese Solenoid 15 2247 May 10, 2010
by treymd
avrisp mkii circuit 4 3371 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 2119 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 5705 May 07, 2010
by rajabalu21
Simple Power Switch 6 2074 May 05, 2010
by avicell
I can haz speed! 3 2250 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 3506 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2805 April 21, 2010
by bretm
Help with choosing the right resistor 10 3486 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 4777 April 15, 2010
by bretm
Resistor 4 1836 April 15, 2010
by mongo
MCU digital input pins 3 1735 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 2260 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 7360 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3832 March 28, 2010
by carlhako
Laptop ground safety question 3 2315 March 27, 2010
by ese
LM34 R-C Damper 5 2682 March 24, 2010
by BobaMosfet
NerdKits & USB 5 2325 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1950 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 3616 March 23, 2010
by ese
constant system reset 3 1791 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 2333 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 3062 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2720 March 17, 2010
by Frozenlock
What is -VS? 6 3367 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3749 March 04, 2010
by treymd
Using MCU to connect two wires 3 2329 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 5707 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 2080 March 02, 2010
by Solorbob
Deciphering power resistors 11 2429 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 2076 March 01, 2010
by nrotstan
Understanding LEDs 16 3687 March 01, 2010
by michaeldallas
What's the part I need? 5 2052 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 8277 February 23, 2010
by rajabalu21
Too much power? 14 2832 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 3316 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 2706 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 8099 February 18, 2010
by Rick_S
Serial port interface circuit 2 3004 February 17, 2010
by mongo
OBDII project 3 2116 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 3976 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 4103 February 13, 2010
by BobaMosfet
Digital pots 5 2233 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 2312 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 3348 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 3302 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 4267 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 2483 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 4024 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 6201 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2982 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 2311 December 27, 2009
by jgauthier
Servo Signal Noise 2 1961 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 4469 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 8279 December 10, 2009
by georgio
Relays and transistors 12 6262 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 5173 December 09, 2009
by Rick_S
IR Detector 7 4012 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2908 November 19, 2009
by mikedoug
Debug with lcd 6 2783 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 2515 November 15, 2009
by tech20
Understanding output pin characteristics 4 2285 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 4018 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 2520 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 36885 October 30, 2009
by BobaMosfet
DIY header unit 2 2806 October 10, 2009
by rusirius
Thermostat Logging 6 3560 October 09, 2009
by luke
Understanding transistors 6 3788 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 7166 October 07, 2009
by mikedoug
Currant booster 3 1983 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2800 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 8289 August 27, 2009
by hevans
Which LED? 14 2656 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 3517 August 07, 2009
by mongo
pull up, pull down resistors 7 14112 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 7335 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 4258 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 3873 July 07, 2009
by sector0
Reset switch for circuit 3 2493 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 26267 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2849 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 2566 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 2554 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 3174 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 2480 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...