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Basic Electronics

NerdKits » Forums » Basic Electronics (451 threads, 3929 posts)
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Would someone explain Proximity Sensor? 19 2077 May 04, 2015
by mongo
Need to replace Wall Watt 16 408 May 02, 2015
by Ralphxyz
Connecting Mosfet 10 901 April 10, 2015
by Noter
My new 3D Printer 44 14754 April 07, 2015
by Rick_S
AtMega 644 2 1204 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 582 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 767 June 02, 2014
by JKITSON
Automated programming mode? 9 1034 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 933 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 573 January 28, 2014
by lailai
What kind of error is this? 4 756 January 23, 2014
by Noter
How to double a DC voltage? 20 3821 January 12, 2014
by JKITSON
Is the code the driver? 2 611 January 12, 2014
by Ralphxyz
Miniature headers 6 860 January 01, 2014
by Ralphxyz
BLDC 8 778 December 23, 2013
by esoderberg
I need help finding a terminal. 17 1205 November 26, 2013
by Rick_S
GLCD SPI problems 14 2093 November 10, 2013
by andyi
Moving on... 7 998 November 08, 2013
by Pr0ject
Power supply questions 4 1185 October 31, 2013
by sask55
OLED 4 789 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 3180 September 22, 2013
by sask55
Opto Interrupter once again 14 2074 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 892 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 3809 September 02, 2013
by Ralphxyz
USB cable specifications 7 950 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 989 August 27, 2013
by Affarram
XMEGA Breakout 8 1083 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 695 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 1011 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 1001 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4696 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 5158 June 18, 2013
by Noter
Two Wrongs Make it Right 3 844 May 22, 2013
by meltbox360
accurate time for a real time clock 5 1120 April 08, 2013
by pcbolt
Using diode to drop voltage 12 20014 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 709 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 918 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 1699 March 14, 2013
by mongo
Current vs Voltage 8 1343 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 1189 March 09, 2013
by lnino
Electric current 2 748 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 2559 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1789 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1733 February 28, 2013
by BobaMosfet
Control electronic door opener 15 1111 February 24, 2013
by lnino
Relay Question 27 3266 February 19, 2013
by Noter
Rotary Encoder how to?? 21 2215 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 1199 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1465 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 1135 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 1113 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1429 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 1125 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1567 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 893 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 875 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 909 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 4180 November 18, 2012
by carlhako
SPI slave clock 6 1163 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 940 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 13492 October 23, 2012
by Noter
NPN circuit connection quandry 4 1241 September 24, 2012
by edb
Simple I/O circuit 4 1052 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 806 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 740 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1993 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 1084 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 2452 September 13, 2012
by dan_engbers
Electronics simulation 8 1346 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2757 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 1042 August 20, 2012
by rblalock
louder sound 2 862 August 18, 2012
by mongo
connector or cable for LCD display? 4 1027 August 13, 2012
by missle3944
Powering L.E.Ds 5 1042 August 09, 2012
by BobaMosfet
Wires in U.K 5 1121 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 1178 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 2496 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 2744 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1400 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 12954 July 21, 2012
by lnino
um help 6 835 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 1173 July 18, 2012
by Ralphxyz
help me 11 1319 July 03, 2012
by Rick_S
Crystal Oscillator question 2 961 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1481 June 24, 2012
by Ralphxyz
HELP 3 903 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 7606 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 910 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1679 June 17, 2012
by RogerFL
Programmable current source 6 1556 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1466 June 11, 2012
by mongo
HELP 6 1028 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 1259 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 12394 May 24, 2012
by Ralphxyz
i need a code 8 1346 May 15, 2012
by pcbolt
Clock Accuracy 30 4304 May 14, 2012
by HexManiac
Relays and Controlling them 9 1256 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1516 May 09, 2012
by RogerFL
Powering your NerdKit 7 1187 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 1108 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1744 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 1262 April 24, 2012
by pcbolt
Programs will not run 6 1164 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1438 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 1259 April 09, 2012
by Ralphxyz
Path Lights controller 2 1068 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 1196 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1403 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 1250 April 01, 2012
by JamesFysh
Question on LCD screen 5 1152 March 30, 2012
by billtaichi
Is this Capaciator Good 4 1145 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 2399 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1757 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 2510 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 1268 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 1313 March 15, 2012
by mongo
Digital servo issues! 9 1465 March 15, 2012
by Rick_S
Brushless motor control 16 1805 March 12, 2012
by hevans
Windows not detecting device 3 1083 March 10, 2012
by hevans
Voltage throught MCU 5 1003 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 13089 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 3234 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 3953 March 01, 2012
by hevans
Up and running... 3 951 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 1227 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1532 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 1120 February 24, 2012
by Rick_S
programming lcd trubs 7 1155 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1638 February 18, 2012
by Rick_S
Oscilloscope 15 2386 February 18, 2012
by Osarus
How far away can a LM34 be? 16 4741 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 2220 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1316 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 3589 February 09, 2012
by mongo
Data transmission 3 1661 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1487 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 2238 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 1158 February 03, 2012
by BobaMosfet
connencting two ics to port 3 998 January 31, 2012
by tchilzer2
H bridge questions 6 1293 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1321 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1456 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1499 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 3073 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1446 January 15, 2012
by Rick_S
Source of power? 19 1432 January 13, 2012
by mongo
symbol defined please? 4 1550 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 7625 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 1221 January 06, 2012
by boxvic
Basic LED circuit properties 8 1386 January 06, 2012
by boxvic
Getting Started 3 1217 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1642 January 02, 2012
by bodangly
SMD reflow 16 1891 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1270 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1644 December 23, 2011
by BobaMosfet
Potentiometer 8 1775 December 23, 2011
by huzbum
Fun with Op-Amps 3 2107 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1550 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1329 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1456 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 1095 November 27, 2011
by sazD
Initial Load 2 1411 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1619 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 2347 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1546 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 4426 November 10, 2011
by jfbrink
Servo Squitter Project 13 1376 November 09, 2011
by Heed
how do i run a program 4 1149 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 1251 November 07, 2011
by Heed
Motor control question 2 1190 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 3043 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1370 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 1255 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 27322 October 24, 2011
by glendon
Measuring Capacitance 9 2283 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1417 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 2040 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 8407 October 16, 2011
by sask55
RxD / TxD Questions 10 2744 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1477 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1435 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 1144 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 1226 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 4740 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 2191 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 16923 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 2637 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 1210 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 3156 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 5227 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 4384 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1454 September 01, 2011
by BobaMosfet
Dim LED 3 1224 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1501 August 23, 2011
by Twarter369
Easy Transistor Question 4 1703 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 2417 August 18, 2011
by Ralphxyz
Building a coil?? 12 2519 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1487 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1278 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 1037 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 1044 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 8341 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1830 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1262 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1310 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1289 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2584 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1234 July 17, 2011
by codenamejupiterx
avr macpack 3 1197 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1400 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1355 July 13, 2011
by BobaMosfet
Battery clip wires 3 1154 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 1063 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 1099 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1395 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1786 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 6868 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1382 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1330 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2600 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1546 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1502 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1433 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1576 June 06, 2011
by mja
A couple of questions 3 1196 June 06, 2011
by Ralphxyz
How much should I strip? 3 1162 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1622 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1306 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1619 May 29, 2011
by Rick_S
Digital Input Question 4 1308 May 28, 2011
by frankdwest
PCB arrived 20 1377 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1879 May 24, 2011
by gcharris
Calculating bypass capacitor 6 8123 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1886 May 09, 2011
by Noter
IR current 6 1671 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 2218 May 04, 2011
by hariharan
Heat sensors 21 2123 May 04, 2011
by Hexorg
error 1 2 1352 May 02, 2011
by hevans
Transistor vs mosfet 13 5666 May 01, 2011
by Noter
PCB trace width calculator 3 2344 April 24, 2011
by esoderberg
OLED display 10 1760 April 23, 2011
by Rick_S
Power Supplies 17 2723 April 22, 2011
by BobBolinger
LCD & battery&USB 4 1192 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1602 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1277 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1678 April 19, 2011
by mongo
Connecting to external control voltages 4 1500 April 19, 2011
by bretm
IR current question 7 1368 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1901 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1728 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1613 April 10, 2011
by uml_12
Basic projects 3 1433 April 09, 2011
by mongo
REFLOW oven 22 3222 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 5591 April 07, 2011
by bretm
unexpected MCU rebooting 82 2946 April 05, 2011
by sask55
REFLOW Soldering 3 1801 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1571 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 3308 March 30, 2011
by bretm
Black Display on LCD 6 1576 March 28, 2011
by Druidman
32kHz clock 2 1487 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 5210 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4826 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2592 March 16, 2011
by mongo
LCD problem 3 1482 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 2136 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 2163 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1460 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2731 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1950 February 26, 2011
by amartinez
Why does my led light without the battery? 2 2066 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 6143 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 3669 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2698 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 3792 February 19, 2011
by Lusitania
My first Impression 6 1631 February 16, 2011
by devinsbusiness
Understanding battery life 3 2534 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2491 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1945 February 05, 2011
by BobaMosfet
High voltage lines 26 3080 February 02, 2011
by mongo
USB 3 1469 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 2107 February 02, 2011
by Jalex
Alternating LED circuit 4 1990 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2601 January 31, 2011
by il1019
Affordable oscilloscopes 43 8551 January 27, 2011
by BStory
"And"gate unfinished thought 2 1358 January 27, 2011
by Hexorg
replace MCU? 30 5326 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1906 January 25, 2011
by Ralphxyz
Multimeter! 12 3476 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2464 January 25, 2011
by Jalex
My LED Cube so far 25 5734 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 2313 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1841 January 18, 2011
by dgikuljot
Counting 5 1257 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 4053 January 17, 2011
by bretm
Programming 5 1843 January 14, 2011
by Ralphxyz
Induction loop actuator 7 2240 January 11, 2011
by Yourself
Begining 7 1940 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 2383 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 2154 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1439 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1826 January 06, 2011
by Mujda
Data input voltage 6 2089 January 03, 2011
by Rick_S
MOSFET Question 7 2015 December 31, 2010
by Keyster
Transistor as a switch 5 1822 December 29, 2010
by Hexorg
Resistors 5 2309 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 5486 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1954 December 28, 2010
by BobaMosfet
Relay ratings 2 1631 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 12710 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1633 December 17, 2010
by mongo
Power Rectifier 7 1851 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2987 December 14, 2010
by danuke
This a decent oscilloscope? 8 2057 December 14, 2010
by danuke
Do resistors in series really add up? 8 2745 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 2221 December 09, 2010
by bretm
L293 H-Bridge 15 2735 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2633 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 3020 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2333 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2605 November 24, 2010
by BobaMosfet
Op-amp not working 6 2708 November 24, 2010
by BobaMosfet
Python questions 4 2504 November 21, 2010
by tkopriva
CE Amp design 5 1670 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 2042 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1670 November 05, 2010
by Mujda
PC4 not working?! 8 1355 November 04, 2010
by hapshetsut
Amplifiers 4 1671 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 2308 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2422 October 04, 2010
by Scythium
radio interference from NerdKit 11 1646 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 4129 September 14, 2010
by Ralphxyz
solar project with light sensors 7 2174 September 11, 2010
by akajester
QFP and dreadboard 2 1880 September 02, 2010
by bretm
Getting power to the spinning part... 5 2074 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 6065 August 30, 2010
by Ralphxyz
morse code decoder 2 2386 August 26, 2010
by jonathan_m
Connecting to Computer 3 2130 August 25, 2010
by awesome
555 astable on breadboard 12 3339 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1681 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 2121 August 19, 2010
by hevans
mosfet 3 1695 August 13, 2010
by hevans
Good material on learning electronics. 8 1829 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1517 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2321 August 02, 2010
by mrobbins
More batteries = more voltage? 3 2376 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 4789 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2848 July 02, 2010
by mongo
Electro Cardio Gram 4 2280 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1596 June 12, 2010
by Wobbler
Voltage Regulator 20 2750 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2767 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2814 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2720 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1987 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1550 June 06, 2010
by Kafke
TSSOP IC! 4 1954 June 03, 2010
by mrobbins
AVcc 2 2313 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1765 May 31, 2010
by hevans
Cable Driver 2 1508 May 31, 2010
by mongo
Best 9V adapter to use 2 1764 May 28, 2010
by mongo
Unidirectional microphones 5 1991 May 27, 2010
by mongo
Servo question 3 1708 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 2008 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1807 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2786 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4853 May 21, 2010
by hevans
Chinese Solenoid 15 1879 May 10, 2010
by treymd
avrisp mkii circuit 4 2962 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1804 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 4274 May 07, 2010
by rajabalu21
Simple Power Switch 6 1525 May 05, 2010
by avicell
I can haz speed! 3 1788 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2919 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2420 April 21, 2010
by bretm
Help with choosing the right resistor 10 2798 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 3594 April 15, 2010
by bretm
Resistor 4 1532 April 15, 2010
by mongo
MCU digital input pins 3 1411 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1959 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 6293 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3389 March 28, 2010
by carlhako
Laptop ground safety question 3 1942 March 27, 2010
by ese
LM34 R-C Damper 5 2241 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1959 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1624 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 3072 March 23, 2010
by ese
constant system reset 3 1491 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1912 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2644 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2346 March 17, 2010
by Frozenlock
What is -VS? 6 2399 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3394 March 04, 2010
by treymd
Using MCU to connect two wires 3 1957 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4744 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1767 March 02, 2010
by Solorbob
Deciphering power resistors 11 1940 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1762 March 01, 2010
by nrotstan
Understanding LEDs 16 3146 March 01, 2010
by michaeldallas
What's the part I need? 5 1679 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 7138 February 23, 2010
by rajabalu21
Too much power? 14 2372 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2923 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 2222 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 6154 February 18, 2010
by Rick_S
Serial port interface circuit 2 2624 February 17, 2010
by mongo
OBDII project 3 1804 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 3149 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3536 February 13, 2010
by BobaMosfet
Digital pots 5 1859 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1963 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2885 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2691 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3548 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 2112 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 3339 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4997 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2477 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1944 December 27, 2009
by jgauthier
Servo Signal Noise 2 1606 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3904 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 6991 December 10, 2009
by georgio
Relays and transistors 12 5742 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4526 December 09, 2009
by Rick_S
IR Detector 7 3142 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2486 November 19, 2009
by mikedoug
Debug with lcd 6 2301 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 2183 November 15, 2009
by tech20
Understanding output pin characteristics 4 1882 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3595 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 2172 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 28164 October 30, 2009
by BobaMosfet
DIY header unit 2 2453 October 10, 2009
by rusirius
Thermostat Logging 6 2941 October 09, 2009
by luke
Understanding transistors 6 3370 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 6477 October 07, 2009
by mikedoug
Currant booster 3 1671 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2375 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 6354 August 27, 2009
by hevans
Which LED? 14 2322 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 3119 August 07, 2009
by mongo
pull up, pull down resistors 7 13254 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 6303 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3772 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 3328 July 07, 2009
by sector0
Reset switch for circuit 3 2134 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24987 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2394 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 2214 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 2206 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2792 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 2150 May 06, 2009
by paulip

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