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Basic Electronics

NerdKits » Forums » Basic Electronics (450 threads, 3891 posts)
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Connecting Mosfet 5 304 3 days, 14 hours ago
by BobaMosfet
Would someone explain Proximity Sensor? 4 685 February 23, 2015
by JKITSON
My new 3D Printer 42 14266 February 10, 2015
by JKITSON
AtMega 644 2 992 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 373 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 562 June 02, 2014
by JKITSON
Automated programming mode? 9 818 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 685 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 374 January 28, 2014
by lailai
What kind of error is this? 4 519 January 23, 2014
by Noter
How to double a DC voltage? 20 3033 January 12, 2014
by JKITSON
Is the code the driver? 2 418 January 12, 2014
by Ralphxyz
Miniature headers 6 651 January 01, 2014
by Ralphxyz
BLDC 8 560 December 23, 2013
by esoderberg
I need help finding a terminal. 17 973 November 26, 2013
by Rick_S
GLCD SPI problems 14 1598 November 10, 2013
by andyi
Moving on... 7 762 November 08, 2013
by Pr0ject
Power supply questions 4 957 October 31, 2013
by sask55
OLED 4 607 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 2416 September 22, 2013
by sask55
Opto Interrupter once again 14 1470 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 676 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 3198 September 02, 2013
by Ralphxyz
USB cable specifications 7 758 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 749 August 27, 2013
by Affarram
XMEGA Breakout 8 832 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 525 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 785 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 793 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4381 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 4312 June 18, 2013
by Noter
Two Wrongs Make it Right 3 672 May 22, 2013
by meltbox360
accurate time for a real time clock 5 905 April 08, 2013
by pcbolt
Using diode to drop voltage 12 15595 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 540 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 736 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 1315 March 14, 2013
by mongo
Current vs Voltage 8 1099 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 912 March 09, 2013
by lnino
Electric current 2 576 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 2010 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1383 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1335 February 28, 2013
by BobaMosfet
Control electronic door opener 15 889 February 24, 2013
by lnino
Relay Question 27 2927 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1754 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 978 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1216 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 941 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 937 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1236 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 942 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1268 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 735 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 705 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 734 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 3589 November 18, 2012
by carlhako
SPI slave clock 6 953 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 777 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 12278 October 23, 2012
by Noter
NPN circuit connection quandry 4 1026 September 24, 2012
by edb
Simple I/O circuit 4 879 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 632 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 576 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1735 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 921 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 2089 September 13, 2012
by dan_engbers
Electronics simulation 8 1151 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2522 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 865 August 20, 2012
by rblalock
louder sound 2 695 August 18, 2012
by mongo
connector or cable for LCD display? 4 870 August 13, 2012
by missle3944
Powering L.E.Ds 5 863 August 09, 2012
by BobaMosfet
Wires in U.K 5 948 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 974 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 2152 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 2334 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1191 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 11698 July 21, 2012
by lnino
um help 6 673 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 992 July 18, 2012
by Ralphxyz
help me 11 1084 July 03, 2012
by Rick_S
Crystal Oscillator question 2 804 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1214 June 24, 2012
by Ralphxyz
HELP 3 735 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 6851 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 745 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1408 June 17, 2012
by RogerFL
Programmable current source 6 1330 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1176 June 11, 2012
by mongo
HELP 6 845 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 1083 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 9521 May 24, 2012
by Ralphxyz
i need a code 8 1161 May 15, 2012
by pcbolt
Clock Accuracy 30 3976 May 14, 2012
by HexManiac
Relays and Controlling them 9 1080 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1282 May 09, 2012
by RogerFL
Powering your NerdKit 7 993 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 925 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1448 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 1097 April 24, 2012
by pcbolt
Programs will not run 6 969 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1221 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 1061 April 09, 2012
by Ralphxyz
Path Lights controller 2 896 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 1009 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1179 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 1066 April 01, 2012
by JamesFysh
Question on LCD screen 5 978 March 30, 2012
by billtaichi
Is this Capaciator Good 4 961 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 2004 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1570 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 2115 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 1097 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 1057 March 15, 2012
by mongo
Digital servo issues! 9 1290 March 15, 2012
by Rick_S
Brushless motor control 16 1601 March 12, 2012
by hevans
Windows not detecting device 3 924 March 10, 2012
by hevans
Voltage throught MCU 5 826 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 12384 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2729 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 3160 March 01, 2012
by hevans
Up and running... 3 790 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 1045 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1357 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 954 February 24, 2012
by Rick_S
programming lcd trubs 7 1005 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1465 February 18, 2012
by Rick_S
Oscilloscope 15 2086 February 18, 2012
by Osarus
How far away can a LM34 be? 16 4369 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 2033 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1147 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 3234 February 09, 2012
by mongo
Data transmission 3 1502 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1292 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1968 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 1004 February 03, 2012
by BobaMosfet
connencting two ics to port 3 847 January 31, 2012
by tchilzer2
H bridge questions 6 1124 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1150 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1291 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1309 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2657 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1262 January 15, 2012
by Rick_S
Source of power? 19 1260 January 13, 2012
by mongo
symbol defined please? 4 1380 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 6701 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 1070 January 06, 2012
by boxvic
Basic LED circuit properties 8 1202 January 06, 2012
by boxvic
Getting Started 3 1059 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1425 January 02, 2012
by bodangly
SMD reflow 16 1671 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1112 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1440 December 23, 2011
by BobaMosfet
Potentiometer 8 1590 December 23, 2011
by huzbum
Fun with Op-Amps 3 1853 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1348 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1147 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1276 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 934 November 27, 2011
by sazD
Initial Load 2 1230 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1391 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 2097 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1369 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 4140 November 10, 2011
by jfbrink
Servo Squitter Project 13 1192 November 09, 2011
by Heed
how do i run a program 4 995 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 1095 November 07, 2011
by Heed
Motor control question 2 1037 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2663 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1208 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 1088 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 21657 October 24, 2011
by glendon
Measuring Capacitance 9 2031 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1221 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1769 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 7230 October 16, 2011
by sask55
RxD / TxD Questions 10 2403 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1304 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1266 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 966 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 1060 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 4170 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1926 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 16014 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 2202 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 1071 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2649 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 4487 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 4036 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1282 September 01, 2011
by BobaMosfet
Dim LED 3 1078 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1296 August 23, 2011
by Twarter369
Easy Transistor Question 4 1507 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 2137 August 18, 2011
by Ralphxyz
Building a coil?? 12 2276 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1331 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1129 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 895 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 901 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 7354 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1646 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1116 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1145 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1112 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2309 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1087 July 17, 2011
by codenamejupiterx
avr macpack 3 1032 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1242 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1221 July 13, 2011
by BobaMosfet
Battery clip wires 3 1010 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 903 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 944 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1209 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1616 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 5826 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1182 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1186 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2369 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1389 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1315 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1292 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1419 June 06, 2011
by mja
A couple of questions 3 1036 June 06, 2011
by Ralphxyz
How much should I strip? 3 1024 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1457 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1149 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1472 May 29, 2011
by Rick_S
Digital Input Question 4 1138 May 28, 2011
by frankdwest
PCB arrived 20 1233 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1673 May 24, 2011
by gcharris
Calculating bypass capacitor 6 6602 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1715 May 09, 2011
by Noter
IR current 6 1500 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 2005 May 04, 2011
by hariharan
Heat sensors 21 1907 May 04, 2011
by Hexorg
error 1 2 1213 May 02, 2011
by hevans
Transistor vs mosfet 13 4866 May 01, 2011
by Noter
PCB trace width calculator 3 2167 April 24, 2011
by esoderberg
OLED display 10 1580 April 23, 2011
by Rick_S
Power Supplies 17 2549 April 22, 2011
by BobBolinger
LCD & battery&USB 4 1041 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1408 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1128 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1515 April 19, 2011
by mongo
Connecting to external control voltages 4 1343 April 19, 2011
by bretm
IR current question 7 1193 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1726 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1543 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1394 April 10, 2011
by uml_12
Basic projects 3 1286 April 09, 2011
by mongo
REFLOW oven 22 2945 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 5027 April 07, 2011
by bretm
unexpected MCU rebooting 82 2686 April 05, 2011
by sask55
REFLOW Soldering 3 1606 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1431 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2874 March 30, 2011
by bretm
Black Display on LCD 6 1406 March 28, 2011
by Druidman
32kHz clock 2 1348 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4713 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4463 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2361 March 16, 2011
by mongo
LCD problem 3 1322 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1912 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1982 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1315 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2464 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1686 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1876 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 5332 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 3261 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2511 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 3308 February 19, 2011
by Lusitania
My first Impression 6 1474 February 16, 2011
by devinsbusiness
Understanding battery life 3 2320 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2305 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1767 February 05, 2011
by BobaMosfet
High voltage lines 26 2800 February 02, 2011
by mongo
USB 3 1314 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1872 February 02, 2011
by Jalex
Alternating LED circuit 4 1840 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2390 January 31, 2011
by il1019
Affordable oscilloscopes 43 8141 January 27, 2011
by BStory
"And"gate unfinished thought 2 1207 January 27, 2011
by Hexorg
replace MCU? 30 5072 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1745 January 25, 2011
by Ralphxyz
Multimeter! 12 3306 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2273 January 25, 2011
by Jalex
My LED Cube so far 25 5369 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 2105 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1675 January 18, 2011
by dgikuljot
Counting 5 1118 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3768 January 17, 2011
by bretm
Programming 5 1674 January 14, 2011
by Ralphxyz
Induction loop actuator 7 2066 January 11, 2011
by Yourself
Begining 7 1791 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 2166 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1959 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1291 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1675 January 06, 2011
by Mujda
Data input voltage 6 1924 January 03, 2011
by Rick_S
MOSFET Question 7 1834 December 31, 2010
by Keyster
Transistor as a switch 5 1669 December 29, 2010
by Hexorg
Resistors 5 2155 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 5037 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1724 December 28, 2010
by BobaMosfet
Relay ratings 2 1465 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 12033 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1488 December 17, 2010
by mongo
Power Rectifier 7 1642 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2761 December 14, 2010
by danuke
This a decent oscilloscope? 8 1899 December 14, 2010
by danuke
Do resistors in series really add up? 8 2497 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 2030 December 09, 2010
by bretm
L293 H-Bridge 15 2533 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2427 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2780 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2140 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2343 November 24, 2010
by BobaMosfet
Op-amp not working 6 2411 November 24, 2010
by BobaMosfet
Python questions 4 2287 November 21, 2010
by tkopriva
CE Amp design 5 1522 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1882 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1501 November 05, 2010
by Mujda
PC4 not working?! 8 1193 November 04, 2010
by hapshetsut
Amplifiers 4 1517 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 2085 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2266 October 04, 2010
by Scythium
radio interference from NerdKit 11 1497 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3706 September 14, 2010
by Ralphxyz
solar project with light sensors 7 2029 September 11, 2010
by akajester
QFP and dreadboard 2 1725 September 02, 2010
by bretm
Getting power to the spinning part... 5 1919 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 5488 August 30, 2010
by Ralphxyz
morse code decoder 2 2213 August 26, 2010
by jonathan_m
Connecting to Computer 3 1993 August 25, 2010
by awesome
555 astable on breadboard 12 3132 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1530 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1982 August 19, 2010
by hevans
mosfet 3 1552 August 13, 2010
by hevans
Good material on learning electronics. 8 1677 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1376 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2141 August 02, 2010
by mrobbins
More batteries = more voltage? 3 2160 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 4333 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2627 July 02, 2010
by mongo
Electro Cardio Gram 4 2116 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1457 June 12, 2010
by Wobbler
Voltage Regulator 20 2523 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2596 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2552 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2526 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1811 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1402 June 06, 2010
by Kafke
TSSOP IC! 4 1808 June 03, 2010
by mrobbins
AVcc 2 2158 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1630 May 31, 2010
by hevans
Cable Driver 2 1375 May 31, 2010
by mongo
Best 9V adapter to use 2 1619 May 28, 2010
by mongo
Unidirectional microphones 5 1849 May 27, 2010
by mongo
Servo question 3 1560 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1847 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1644 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2497 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4477 May 21, 2010
by hevans
Chinese Solenoid 15 1722 May 10, 2010
by treymd
avrisp mkii circuit 4 2760 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1650 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3746 May 07, 2010
by rajabalu21
Simple Power Switch 6 1370 May 05, 2010
by avicell
I can haz speed! 3 1639 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2706 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2261 April 21, 2010
by bretm
Help with choosing the right resistor 10 2534 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 3273 April 15, 2010
by bretm
Resistor 4 1393 April 15, 2010
by mongo
MCU digital input pins 3 1268 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1817 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5922 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3202 March 28, 2010
by carlhako
Laptop ground safety question 3 1785 March 27, 2010
by ese
LM34 R-C Damper 5 2085 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1823 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1466 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2849 March 23, 2010
by ese
constant system reset 3 1360 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1718 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2463 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2190 March 17, 2010
by Frozenlock
What is -VS? 6 2127 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3215 March 04, 2010
by treymd
Using MCU to connect two wires 3 1807 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4422 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1625 March 02, 2010
by Solorbob
Deciphering power resistors 11 1759 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1616 March 01, 2010
by nrotstan
Understanding LEDs 16 2938 March 01, 2010
by michaeldallas
What's the part I need? 5 1528 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 6606 February 23, 2010
by rajabalu21
Too much power? 14 2177 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2755 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 2021 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 5651 February 18, 2010
by Rick_S
Serial port interface circuit 2 2442 February 17, 2010
by mongo
OBDII project 3 1661 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2885 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3270 February 13, 2010
by BobaMosfet
Digital pots 5 1702 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1818 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2720 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2394 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3259 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1946 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 3058 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4637 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2279 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1778 December 27, 2009
by jgauthier
Servo Signal Noise 2 1467 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3692 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 6489 December 10, 2009
by georgio
Relays and transistors 12 5516 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4284 December 09, 2009
by Rick_S
IR Detector 7 2832 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2332 November 19, 2009
by mikedoug
Debug with lcd 6 2120 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 2045 November 15, 2009
by tech20
Understanding output pin characteristics 4 1718 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3389 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 2016 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 26196 October 30, 2009
by BobaMosfet
DIY header unit 2 2301 October 10, 2009
by rusirius
Thermostat Logging 6 2711 October 09, 2009
by luke
Understanding transistors 6 3163 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 6201 October 07, 2009
by mikedoug
Currant booster 3 1531 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2190 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5845 August 27, 2009
by hevans
Which LED? 14 2164 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2910 August 07, 2009
by mongo
pull up, pull down resistors 7 12862 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5900 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3535 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 3124 July 07, 2009
by sector0
Reset switch for circuit 3 1974 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24629 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2230 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 2039 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 2048 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2623 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1951 May 06, 2009
by paulip

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Did you know that the microcontroller's crystal oscillator can be used to keep accurate time? Learn more...