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Basic Electronics

NerdKits » Forums » Basic Electronics (447 threads, 3863 posts)
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Switching between +5v and -5V 2 101 August 07, 2014
by Rick_S
My new 3D Printer 25 3740 July 31, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 361 June 02, 2014
by JKITSON
Automated programming mode? 9 587 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 467 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 197 January 28, 2014
by lailai
What kind of error is this? 4 287 January 23, 2014
by Noter
How to double a DC voltage? 20 1982 January 12, 2014
by JKITSON
Is the code the driver? 2 255 January 12, 2014
by Ralphxyz
Miniature headers 6 446 January 01, 2014
by Ralphxyz
BLDC 8 400 December 23, 2013
by esoderberg
I need help finding a terminal. 17 772 November 26, 2013
by Rick_S
GLCD SPI problems 14 1018 November 10, 2013
by andyi
Moving on... 7 568 November 08, 2013
by Pr0ject
Power supply questions 4 697 October 31, 2013
by sask55
OLED 4 435 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1537 September 22, 2013
by sask55
Opto Interrupter once again 14 931 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 444 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2161 September 02, 2013
by Ralphxyz
USB cable specifications 7 563 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 542 August 27, 2013
by Affarram
XMEGA Breakout 8 588 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 381 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 537 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 597 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4029 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3199 June 18, 2013
by Noter
Two Wrongs Make it Right 3 552 May 22, 2013
by meltbox360
accurate time for a real time clock 5 733 April 08, 2013
by pcbolt
Using diode to drop voltage 12 10128 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 420 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 600 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 807 March 14, 2013
by mongo
Current vs Voltage 8 878 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 649 March 09, 2013
by lnino
Electric current 2 451 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1377 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 976 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 995 February 28, 2013
by BobaMosfet
Control electronic door opener 15 701 February 24, 2013
by lnino
Relay Question 27 2591 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1331 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 714 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 947 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 743 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 773 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1081 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 769 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1008 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 587 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 583 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 623 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 2880 November 18, 2012
by carlhako
SPI slave clock 6 749 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 678 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 10707 October 23, 2012
by Noter
NPN circuit connection quandry 4 846 September 24, 2012
by edb
Simple I/O circuit 4 735 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 504 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 465 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1438 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 786 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1703 September 13, 2012
by dan_engbers
Electronics simulation 8 939 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2166 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 731 August 20, 2012
by rblalock
louder sound 2 539 August 18, 2012
by mongo
connector or cable for LCD display? 4 743 August 13, 2012
by missle3944
Powering L.E.Ds 5 710 August 09, 2012
by BobaMosfet
Wires in U.K 5 766 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 824 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1851 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1834 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1015 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 9538 July 21, 2012
by lnino
um help 6 565 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 832 July 18, 2012
by Ralphxyz
help me 11 903 July 03, 2012
by Rick_S
Crystal Oscillator question 2 705 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 948 June 24, 2012
by Ralphxyz
HELP 3 621 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 5458 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 598 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1159 June 17, 2012
by RogerFL
Programmable current source 6 1083 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 963 June 11, 2012
by mongo
HELP 6 704 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 937 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 6636 May 24, 2012
by Ralphxyz
i need a code 8 1014 May 15, 2012
by pcbolt
Clock Accuracy 30 3688 May 14, 2012
by HexManiac
Relays and Controlling them 9 917 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1068 May 09, 2012
by RogerFL
Powering your NerdKit 7 846 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 791 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1142 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 932 April 24, 2012
by pcbolt
Programs will not run 6 814 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1051 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 912 April 09, 2012
by Ralphxyz
Path Lights controller 2 769 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 858 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 987 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 936 April 01, 2012
by JamesFysh
Question on LCD screen 5 843 March 30, 2012
by billtaichi
Is this Capaciator Good 4 800 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 827 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1413 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1706 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 927 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 848 March 15, 2012
by mongo
Digital servo issues! 9 1083 March 15, 2012
by Rick_S
Brushless motor control 16 1305 March 12, 2012
by hevans
Windows not detecting device 3 809 March 10, 2012
by hevans
Voltage throught MCU 5 703 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10536 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2094 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2369 March 01, 2012
by hevans
Up and running... 3 686 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 860 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 951 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 795 February 24, 2012
by Rick_S
programming lcd trubs 7 909 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1219 February 18, 2012
by Rick_S
Oscilloscope 15 1802 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3860 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1854 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1011 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2733 February 09, 2012
by mongo
Data transmission 3 1381 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1105 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1669 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 881 February 03, 2012
by BobaMosfet
connencting two ics to port 3 743 January 31, 2012
by tchilzer2
H bridge questions 6 976 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1016 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1155 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1154 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2153 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1131 January 15, 2012
by Rick_S
Source of power? 19 1145 January 13, 2012
by mongo
symbol defined please? 4 1198 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5264 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 948 January 06, 2012
by boxvic
Basic LED circuit properties 8 1019 January 06, 2012
by boxvic
Getting Started 3 934 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1235 January 02, 2012
by bodangly
SMD reflow 16 1432 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 978 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1283 December 23, 2011
by BobaMosfet
Potentiometer 8 1416 December 23, 2011
by huzbum
Fun with Op-Amps 3 1596 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1177 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 966 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1097 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 804 November 27, 2011
by sazD
Initial Load 2 1057 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1210 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1796 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1155 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3792 November 10, 2011
by jfbrink
Servo Squitter Project 13 1051 November 09, 2011
by Heed
how do i run a program 4 846 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 947 November 07, 2011
by Heed
Motor control question 2 922 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2193 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1088 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 921 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 15087 October 24, 2011
by glendon
Measuring Capacitance 9 1806 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1050 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1519 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 5655 October 16, 2011
by sask55
RxD / TxD Questions 10 2031 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1138 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1141 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 849 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 931 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3363 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1604 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13143 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1716 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 953 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2142 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3605 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3629 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1141 September 01, 2011
by BobaMosfet
Dim LED 3 960 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1125 August 23, 2011
by Twarter369
Easy Transistor Question 4 1357 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1826 August 18, 2011
by Ralphxyz
Building a coil?? 12 2006 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1206 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 976 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 799 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 793 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 5962 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1476 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 982 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 972 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 968 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 1994 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 972 July 17, 2011
by codenamejupiterx
avr macpack 3 911 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1114 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1107 July 13, 2011
by BobaMosfet
Battery clip wires 3 903 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 780 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 823 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1030 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1461 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 4682 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1012 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1061 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2081 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1258 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1151 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1165 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1288 June 06, 2011
by mja
A couple of questions 3 903 June 06, 2011
by Ralphxyz
How much should I strip? 3 917 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1312 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1037 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1331 May 29, 2011
by Rick_S
Digital Input Question 4 1016 May 28, 2011
by frankdwest
PCB arrived 20 1117 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1486 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5042 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1515 May 09, 2011
by Noter
IR current 6 1349 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1753 May 04, 2011
by hariharan
Heat sensors 21 1699 May 04, 2011
by Hexorg
error 1 2 1118 May 02, 2011
by hevans
Transistor vs mosfet 13 4065 May 01, 2011
by Noter
PCB trace width calculator 3 1967 April 24, 2011
by esoderberg
OLED display 10 1418 April 23, 2011
by Rick_S
Power Supplies 17 2355 April 22, 2011
by BobBolinger
LCD & battery&USB 4 907 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1234 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1017 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1364 April 19, 2011
by mongo
Connecting to external control voltages 4 1204 April 19, 2011
by bretm
IR current question 7 1058 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1549 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1296 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1224 April 10, 2011
by uml_12
Basic projects 3 1158 April 09, 2011
by mongo
REFLOW oven 22 2621 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4324 April 07, 2011
by bretm
unexpected MCU rebooting 82 2370 April 05, 2011
by sask55
REFLOW Soldering 3 1404 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1272 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2563 March 30, 2011
by bretm
Black Display on LCD 6 1262 March 28, 2011
by Druidman
32kHz clock 2 1228 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4125 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4108 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2110 March 16, 2011
by mongo
LCD problem 3 1197 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1693 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1825 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1194 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2130 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1469 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1664 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4425 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2832 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2324 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2670 February 19, 2011
by Lusitania
My first Impression 6 1336 February 16, 2011
by devinsbusiness
Understanding battery life 3 2098 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2117 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1580 February 05, 2011
by BobaMosfet
High voltage lines 26 2495 February 02, 2011
by mongo
USB 3 1162 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1681 February 02, 2011
by Jalex
Alternating LED circuit 4 1682 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2103 January 31, 2011
by il1019
Affordable oscilloscopes 43 7720 January 27, 2011
by BStory
"And"gate unfinished thought 2 1066 January 27, 2011
by Hexorg
replace MCU? 30 4733 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1575 January 25, 2011
by Ralphxyz
Multimeter! 12 3116 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2056 January 25, 2011
by Jalex
My LED Cube so far 25 4806 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1917 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1480 January 18, 2011
by dgikuljot
Counting 5 987 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3388 January 17, 2011
by bretm
Programming 5 1514 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1906 January 11, 2011
by Yourself
Begining 7 1651 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1917 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1782 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1120 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1519 January 06, 2011
by Mujda
Data input voltage 6 1740 January 03, 2011
by Rick_S
MOSFET Question 7 1655 December 31, 2010
by Keyster
Transistor as a switch 5 1510 December 29, 2010
by Hexorg
Resistors 5 1986 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4537 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1517 December 28, 2010
by BobaMosfet
Relay ratings 2 1304 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 10808 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1342 December 17, 2010
by mongo
Power Rectifier 7 1500 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2492 December 14, 2010
by danuke
This a decent oscilloscope? 8 1730 December 14, 2010
by danuke
Do resistors in series really add up? 8 2246 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1819 December 09, 2010
by bretm
L293 H-Bridge 15 2288 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2224 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2483 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1931 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2090 November 24, 2010
by BobaMosfet
Op-amp not working 6 2121 November 24, 2010
by BobaMosfet
Python questions 4 2100 November 21, 2010
by tkopriva
CE Amp design 5 1385 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1727 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1362 November 05, 2010
by Mujda
PC4 not working?! 8 1074 November 04, 2010
by hapshetsut
Amplifiers 4 1362 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1895 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2059 October 04, 2010
by Scythium
radio interference from NerdKit 11 1350 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3213 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1875 September 11, 2010
by akajester
QFP and dreadboard 2 1552 September 02, 2010
by bretm
Getting power to the spinning part... 5 1732 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4731 August 30, 2010
by Ralphxyz
morse code decoder 2 2020 August 26, 2010
by jonathan_m
Connecting to Computer 3 1836 August 25, 2010
by awesome
555 astable on breadboard 12 2873 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1376 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1823 August 19, 2010
by hevans
mosfet 3 1394 August 13, 2010
by hevans
Good material on learning electronics. 8 1510 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1218 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1954 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1917 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3789 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2290 July 02, 2010
by mongo
Electro Cardio Gram 4 1927 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1308 June 12, 2010
by Wobbler
Voltage Regulator 20 2257 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2405 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2294 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2298 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1643 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1235 June 06, 2010
by Kafke
TSSOP IC! 4 1657 June 03, 2010
by mrobbins
AVcc 2 1983 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1485 May 31, 2010
by hevans
Cable Driver 2 1239 May 31, 2010
by mongo
Best 9V adapter to use 2 1467 May 28, 2010
by mongo
Unidirectional microphones 5 1676 May 27, 2010
by mongo
Servo question 3 1407 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1671 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1433 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2239 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 3951 May 21, 2010
by hevans
Chinese Solenoid 15 1570 May 10, 2010
by treymd
avrisp mkii circuit 4 2568 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1519 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3078 May 07, 2010
by rajabalu21
Simple Power Switch 6 1222 May 05, 2010
by avicell
I can haz speed! 3 1473 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2483 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2081 April 21, 2010
by bretm
Help with choosing the right resistor 10 2239 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2874 April 15, 2010
by bretm
Resistor 4 1252 April 15, 2010
by mongo
MCU digital input pins 3 1132 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1680 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5487 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3002 March 28, 2010
by carlhako
Laptop ground safety question 3 1629 March 27, 2010
by ese
LM34 R-C Damper 5 1844 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1661 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1316 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2621 March 23, 2010
by ese
constant system reset 3 1225 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1533 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2228 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2020 March 17, 2010
by Frozenlock
What is -VS? 6 1793 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3006 March 04, 2010
by treymd
Using MCU to connect two wires 3 1648 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4039 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1460 March 02, 2010
by Solorbob
Deciphering power resistors 11 1569 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1435 March 01, 2010
by nrotstan
Understanding LEDs 16 2700 March 01, 2010
by michaeldallas
What's the part I need? 5 1384 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 5948 February 23, 2010
by rajabalu21
Too much power? 14 2029 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2600 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1792 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 4842 February 18, 2010
by Rick_S
Serial port interface circuit 2 2256 February 17, 2010
by mongo
OBDII project 3 1510 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2532 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 2999 February 13, 2010
by BobaMosfet
Digital pots 5 1529 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1670 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2544 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2138 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 2977 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1782 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2700 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4300 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2051 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1590 December 27, 2009
by jgauthier
Servo Signal Noise 2 1332 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3468 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5814 December 10, 2009
by georgio
Relays and transistors 12 5257 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 3937 December 09, 2009
by Rick_S
IR Detector 7 2487 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2126 November 19, 2009
by mikedoug
Debug with lcd 6 1947 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1921 November 15, 2009
by tech20
Understanding output pin characteristics 4 1554 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3176 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1856 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 23754 October 30, 2009
by BobaMosfet
DIY header unit 2 2155 October 10, 2009
by rusirius
Thermostat Logging 6 2427 October 09, 2009
by luke
Understanding transistors 6 2959 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5886 October 07, 2009
by mikedoug
Currant booster 3 1398 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2005 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5232 August 27, 2009
by hevans
Which LED? 14 2017 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2710 August 07, 2009
by mongo
pull up, pull down resistors 7 12236 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5315 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3321 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2918 July 07, 2009
by sector0
Reset switch for circuit 3 1834 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 23959 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2066 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1868 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1895 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2450 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1778 May 06, 2009
by paulip

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