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Basic Electronics

NerdKits » Forums » Basic Electronics (446 threads, 3859 posts)
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My new 3D Printer 23 2931 1 day, 12 hours ago
by JKITSON
Are there hobby printers for my microproccessor? 4 332 June 02, 2014
by JKITSON
Automated programming mode? 9 564 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 442 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 177 January 28, 2014
by lailai
What kind of error is this? 4 266 January 23, 2014
by Noter
How to double a DC voltage? 20 1867 January 12, 2014
by JKITSON
Is the code the driver? 2 240 January 12, 2014
by Ralphxyz
Miniature headers 6 424 January 01, 2014
by Ralphxyz
BLDC 8 384 December 23, 2013
by esoderberg
I need help finding a terminal. 17 752 November 26, 2013
by Rick_S
GLCD SPI problems 14 965 November 10, 2013
by andyi
Moving on... 7 548 November 08, 2013
by Pr0ject
Power supply questions 4 654 October 31, 2013
by sask55
OLED 4 411 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1435 September 22, 2013
by sask55
Opto Interrupter once again 14 882 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 422 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2040 September 02, 2013
by Ralphxyz
USB cable specifications 7 532 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 519 August 27, 2013
by Affarram
XMEGA Breakout 8 565 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 365 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 508 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 568 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 3980 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3123 June 18, 2013
by Noter
Two Wrongs Make it Right 3 532 May 22, 2013
by meltbox360
accurate time for a real time clock 5 715 April 08, 2013
by pcbolt
Using diode to drop voltage 12 9532 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 405 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 583 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 753 March 14, 2013
by mongo
Current vs Voltage 8 847 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 621 March 09, 2013
by lnino
Electric current 2 432 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1322 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 939 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 965 February 28, 2013
by BobaMosfet
Control electronic door opener 15 685 February 24, 2013
by lnino
Relay Question 27 2565 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1265 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 691 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 911 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 727 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 758 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1064 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 755 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 984 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 573 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 568 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 599 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 2825 November 18, 2012
by carlhako
SPI slave clock 6 729 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 667 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 10541 October 23, 2012
by Noter
NPN circuit connection quandry 4 826 September 24, 2012
by edb
Simple I/O circuit 4 724 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 493 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 453 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1417 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 767 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1668 September 13, 2012
by dan_engbers
Electronics simulation 8 914 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2124 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 720 August 20, 2012
by rblalock
louder sound 2 530 August 18, 2012
by mongo
connector or cable for LCD display? 4 734 August 13, 2012
by missle3944
Powering L.E.Ds 5 696 August 09, 2012
by BobaMosfet
Wires in U.K 5 747 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 814 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1819 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1777 July 25, 2012
by bretm
Stepper Motor Direction Control 12 996 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 9380 July 21, 2012
by lnino
um help 6 551 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 821 July 18, 2012
by Ralphxyz
help me 11 887 July 03, 2012
by Rick_S
Crystal Oscillator question 2 692 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 917 June 24, 2012
by Ralphxyz
HELP 3 607 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 5314 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 587 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1129 June 17, 2012
by RogerFL
Programmable current source 6 1060 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 952 June 11, 2012
by mongo
HELP 6 687 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 920 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 6301 May 24, 2012
by Ralphxyz
i need a code 8 995 May 15, 2012
by pcbolt
Clock Accuracy 30 3667 May 14, 2012
by HexManiac
Relays and Controlling them 9 894 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1043 May 09, 2012
by RogerFL
Powering your NerdKit 7 836 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 771 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1114 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 915 April 24, 2012
by pcbolt
Programs will not run 6 802 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1024 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 883 April 09, 2012
by Ralphxyz
Path Lights controller 2 755 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 839 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 970 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 918 April 01, 2012
by JamesFysh
Question on LCD screen 5 828 March 30, 2012
by billtaichi
Is this Capaciator Good 4 785 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 808 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1389 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1666 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 910 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 835 March 15, 2012
by mongo
Digital servo issues! 9 1067 March 15, 2012
by Rick_S
Brushless motor control 16 1291 March 12, 2012
by hevans
Windows not detecting device 3 793 March 10, 2012
by hevans
Voltage throught MCU 5 687 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10434 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2041 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2277 March 01, 2012
by hevans
Up and running... 3 672 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 847 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 928 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 777 February 24, 2012
by Rick_S
programming lcd trubs 7 894 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1189 February 18, 2012
by Rick_S
Oscilloscope 15 1759 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3799 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1832 February 14, 2012
by Ralphxyz
It's true, we forget... 18 996 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2693 February 09, 2012
by mongo
Data transmission 3 1362 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1084 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1636 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 861 February 03, 2012
by BobaMosfet
connencting two ics to port 3 729 January 31, 2012
by tchilzer2
H bridge questions 6 958 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 998 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1143 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1138 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2078 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1116 January 15, 2012
by Rick_S
Source of power? 19 1132 January 13, 2012
by mongo
symbol defined please? 4 1170 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5151 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 931 January 06, 2012
by boxvic
Basic LED circuit properties 8 997 January 06, 2012
by boxvic
Getting Started 3 918 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1216 January 02, 2012
by bodangly
SMD reflow 16 1405 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 967 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1272 December 23, 2011
by BobaMosfet
Potentiometer 8 1401 December 23, 2011
by huzbum
Fun with Op-Amps 3 1570 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1162 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 949 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1078 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 791 November 27, 2011
by sazD
Initial Load 2 1035 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1192 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1773 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1132 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3750 November 10, 2011
by jfbrink
Servo Squitter Project 13 1037 November 09, 2011
by Heed
how do i run a program 4 830 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 931 November 07, 2011
by Heed
Motor control question 2 906 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2150 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1069 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 905 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 14482 October 24, 2011
by glendon
Measuring Capacitance 9 1775 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1033 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1486 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 5500 October 16, 2011
by sask55
RxD / TxD Questions 10 1998 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1112 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1122 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 828 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 915 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3269 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1573 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 12971 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1656 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 937 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2072 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3541 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3584 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1120 September 01, 2011
by BobaMosfet
Dim LED 3 944 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1103 August 23, 2011
by Twarter369
Easy Transistor Question 4 1332 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1785 August 18, 2011
by Ralphxyz
Building a coil?? 12 1962 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1190 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 952 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 780 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 773 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 5805 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1450 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 959 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 952 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 946 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 1948 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 952 July 17, 2011
by codenamejupiterx
avr macpack 3 884 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1094 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1093 July 13, 2011
by BobaMosfet
Battery clip wires 3 886 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 761 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 809 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1016 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1443 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 4525 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 991 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1042 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2047 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1238 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1128 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1147 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1267 June 06, 2011
by mja
A couple of questions 3 879 June 06, 2011
by Ralphxyz
How much should I strip? 3 896 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1283 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1020 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1310 May 29, 2011
by Rick_S
Digital Input Question 4 993 May 28, 2011
by frankdwest
PCB arrived 20 1101 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1459 May 24, 2011
by gcharris
Calculating bypass capacitor 6 4864 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1486 May 09, 2011
by Noter
IR current 6 1330 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1715 May 04, 2011
by hariharan
Heat sensors 21 1675 May 04, 2011
by Hexorg
error 1 2 1100 May 02, 2011
by hevans
Transistor vs mosfet 13 3982 May 01, 2011
by Noter
PCB trace width calculator 3 1943 April 24, 2011
by esoderberg
OLED display 10 1402 April 23, 2011
by Rick_S
Power Supplies 17 2322 April 22, 2011
by BobBolinger
LCD & battery&USB 4 890 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1215 April 21, 2011
by Rick_S
ADC Theremin Help... 1 998 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1340 April 19, 2011
by mongo
Connecting to external control voltages 4 1184 April 19, 2011
by bretm
IR current question 7 1042 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1524 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1275 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1205 April 10, 2011
by uml_12
Basic projects 3 1135 April 09, 2011
by mongo
REFLOW oven 22 2575 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4220 April 07, 2011
by bretm
unexpected MCU rebooting 82 2339 April 05, 2011
by sask55
REFLOW Soldering 3 1375 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1253 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2527 March 30, 2011
by bretm
Black Display on LCD 6 1241 March 28, 2011
by Druidman
32kHz clock 2 1210 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4048 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4064 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2077 March 16, 2011
by mongo
LCD problem 3 1176 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1668 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1804 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1176 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2099 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1450 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1639 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4321 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2755 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2300 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2591 February 19, 2011
by Lusitania
My first Impression 6 1320 February 16, 2011
by devinsbusiness
Understanding battery life 3 2072 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2095 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1563 February 05, 2011
by BobaMosfet
High voltage lines 26 2465 February 02, 2011
by mongo
USB 3 1144 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1658 February 02, 2011
by Jalex
Alternating LED circuit 4 1660 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2046 January 31, 2011
by il1019
Affordable oscilloscopes 43 7641 January 27, 2011
by BStory
"And"gate unfinished thought 2 1047 January 27, 2011
by Hexorg
replace MCU? 30 4699 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1557 January 25, 2011
by Ralphxyz
Multimeter! 12 3096 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2031 January 25, 2011
by Jalex
My LED Cube so far 25 4742 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1894 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1455 January 18, 2011
by dgikuljot
Counting 5 969 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3352 January 17, 2011
by bretm
Programming 5 1495 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1886 January 11, 2011
by Yourself
Begining 7 1631 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1894 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1766 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1096 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1505 January 06, 2011
by Mujda
Data input voltage 6 1716 January 03, 2011
by Rick_S
MOSFET Question 7 1633 December 31, 2010
by Keyster
Transistor as a switch 5 1487 December 29, 2010
by Hexorg
Resistors 5 1965 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4475 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1495 December 28, 2010
by BobaMosfet
Relay ratings 2 1286 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 10688 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1324 December 17, 2010
by mongo
Power Rectifier 7 1486 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2458 December 14, 2010
by danuke
This a decent oscilloscope? 8 1714 December 14, 2010
by danuke
Do resistors in series really add up? 8 2207 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1794 December 09, 2010
by bretm
L293 H-Bridge 15 2262 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2199 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2437 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1900 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2049 November 24, 2010
by BobaMosfet
Op-amp not working 6 2091 November 24, 2010
by BobaMosfet
Python questions 4 2069 November 21, 2010
by tkopriva
CE Amp design 5 1371 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1709 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1343 November 05, 2010
by Mujda
PC4 not working?! 8 1060 November 04, 2010
by hapshetsut
Amplifiers 4 1345 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1869 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2036 October 04, 2010
by Scythium
radio interference from NerdKit 11 1334 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3147 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1848 September 11, 2010
by akajester
QFP and dreadboard 2 1528 September 02, 2010
by bretm
Getting power to the spinning part... 5 1714 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4640 August 30, 2010
by Ralphxyz
morse code decoder 2 1996 August 26, 2010
by jonathan_m
Connecting to Computer 3 1818 August 25, 2010
by awesome
555 astable on breadboard 12 2844 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1361 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1810 August 19, 2010
by hevans
mosfet 3 1377 August 13, 2010
by hevans
Good material on learning electronics. 8 1492 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1200 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1935 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1896 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3694 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2263 July 02, 2010
by mongo
Electro Cardio Gram 4 1902 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1293 June 12, 2010
by Wobbler
Voltage Regulator 20 2229 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2383 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2265 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2276 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1622 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1220 June 06, 2010
by Kafke
TSSOP IC! 4 1640 June 03, 2010
by mrobbins
AVcc 2 1956 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1468 May 31, 2010
by hevans
Cable Driver 2 1222 May 31, 2010
by mongo
Best 9V adapter to use 2 1447 May 28, 2010
by mongo
Unidirectional microphones 5 1662 May 27, 2010
by mongo
Servo question 3 1385 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1654 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1412 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2219 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 3890 May 21, 2010
by hevans
Chinese Solenoid 15 1556 May 10, 2010
by treymd
avrisp mkii circuit 4 2550 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1508 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3002 May 07, 2010
by rajabalu21
Simple Power Switch 6 1207 May 05, 2010
by avicell
I can haz speed! 3 1454 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2459 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2059 April 21, 2010
by bretm
Help with choosing the right resistor 10 2193 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2844 April 15, 2010
by bretm
Resistor 4 1238 April 15, 2010
by mongo
MCU digital input pins 3 1113 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1662 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5416 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 2983 March 28, 2010
by carlhako
Laptop ground safety question 3 1609 March 27, 2010
by ese
LM34 R-C Damper 5 1827 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1643 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1306 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2602 March 23, 2010
by ese
constant system reset 3 1215 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1515 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2202 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2004 March 17, 2010
by Frozenlock
What is -VS? 6 1760 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 2975 March 04, 2010
by treymd
Using MCU to connect two wires 3 1630 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 3994 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1446 March 02, 2010
by Solorbob
Deciphering power resistors 11 1549 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1421 March 01, 2010
by nrotstan
Understanding LEDs 16 2678 March 01, 2010
by michaeldallas
What's the part I need? 5 1367 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 5864 February 23, 2010
by rajabalu21
Too much power? 14 2008 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2584 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1766 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 4744 February 18, 2010
by Rick_S
Serial port interface circuit 2 2237 February 17, 2010
by mongo
OBDII project 3 1492 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2506 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 2974 February 13, 2010
by BobaMosfet
Digital pots 5 1504 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1657 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2527 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2112 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 2937 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1766 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2637 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4257 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2023 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1572 December 27, 2009
by jgauthier
Servo Signal Noise 2 1321 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3453 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5730 December 10, 2009
by georgio
Relays and transistors 12 5230 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 3909 December 09, 2009
by Rick_S
IR Detector 7 2454 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2105 November 19, 2009
by mikedoug
Debug with lcd 6 1930 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1906 November 15, 2009
by tech20
Understanding output pin characteristics 4 1531 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3163 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1835 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 23517 October 30, 2009
by BobaMosfet
DIY header unit 2 2138 October 10, 2009
by rusirius
Thermostat Logging 6 2399 October 09, 2009
by luke
Understanding transistors 6 2935 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5855 October 07, 2009
by mikedoug
Currant booster 3 1381 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 1983 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5157 August 27, 2009
by hevans
Which LED? 14 2002 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2686 August 07, 2009
by mongo
pull up, pull down resistors 7 12149 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5267 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3303 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2895 July 07, 2009
by sector0
Reset switch for circuit 3 1812 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 23880 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2043 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1844 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1876 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2428 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1762 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...