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Basic Electronics

NerdKits » Forums » Basic Electronics (448 threads, 3873 posts)
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My new 3D Printer 33 7604 October 09, 2014
by Rick_S
AtMega 644 2 195 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 197 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 431 June 02, 2014
by JKITSON
Automated programming mode? 9 668 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 521 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 252 January 28, 2014
by lailai
What kind of error is this? 4 356 January 23, 2014
by Noter
How to double a DC voltage? 20 2344 January 12, 2014
by JKITSON
Is the code the driver? 2 307 January 12, 2014
by Ralphxyz
Miniature headers 6 509 January 01, 2014
by Ralphxyz
BLDC 8 450 December 23, 2013
by esoderberg
I need help finding a terminal. 17 842 November 26, 2013
by Rick_S
GLCD SPI problems 14 1221 November 10, 2013
by andyi
Moving on... 7 635 November 08, 2013
by Pr0ject
Power supply questions 4 802 October 31, 2013
by sask55
OLED 4 480 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1847 September 22, 2013
by sask55
Opto Interrupter once again 14 1129 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 516 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2503 September 02, 2013
by Ralphxyz
USB cable specifications 7 625 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 595 August 27, 2013
by Affarram
XMEGA Breakout 8 687 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 423 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 629 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 652 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4157 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3587 June 18, 2013
by Noter
Two Wrongs Make it Right 3 591 May 22, 2013
by meltbox360
accurate time for a real time clock 5 789 April 08, 2013
by pcbolt
Using diode to drop voltage 12 12235 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 453 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 640 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 1050 March 14, 2013
by mongo
Current vs Voltage 8 954 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 726 March 09, 2013
by lnino
Electric current 2 494 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1624 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1121 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1101 February 28, 2013
by BobaMosfet
Control electronic door opener 15 752 February 24, 2013
by lnino
Relay Question 27 2704 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1513 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 801 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1047 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 803 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 823 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1131 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 825 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1102 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 644 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 623 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 657 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 3156 November 18, 2012
by carlhako
SPI slave clock 6 819 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 709 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 11376 October 23, 2012
by Noter
NPN circuit connection quandry 4 915 September 24, 2012
by edb
Simple I/O circuit 4 780 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 548 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 497 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1543 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 829 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1827 September 13, 2012
by dan_engbers
Electronics simulation 8 997 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2314 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 776 August 20, 2012
by rblalock
louder sound 2 592 August 18, 2012
by mongo
connector or cable for LCD display? 4 782 August 13, 2012
by missle3944
Powering L.E.Ds 5 755 August 09, 2012
by BobaMosfet
Wires in U.K 5 829 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 864 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1943 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 2042 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1080 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 10131 July 21, 2012
by lnino
um help 6 596 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 873 July 18, 2012
by Ralphxyz
help me 11 953 July 03, 2012
by Rick_S
Crystal Oscillator question 2 738 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1047 June 24, 2012
by Ralphxyz
HELP 3 654 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 6021 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 630 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1250 June 17, 2012
by RogerFL
Programmable current source 6 1165 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1037 June 11, 2012
by mongo
HELP 6 748 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 983 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 7766 May 24, 2012
by Ralphxyz
i need a code 8 1057 May 15, 2012
by pcbolt
Clock Accuracy 30 3791 May 14, 2012
by HexManiac
Relays and Controlling them 9 961 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1139 May 09, 2012
by RogerFL
Powering your NerdKit 7 895 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 828 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1247 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 987 April 24, 2012
by pcbolt
Programs will not run 6 860 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1109 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 955 April 09, 2012
by Ralphxyz
Path Lights controller 2 812 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 907 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1060 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 964 April 01, 2012
by JamesFysh
Question on LCD screen 5 883 March 30, 2012
by billtaichi
Is this Capaciator Good 4 854 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 1080 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1465 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1839 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 985 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 917 March 15, 2012
by mongo
Digital servo issues! 9 1162 March 15, 2012
by Rick_S
Brushless motor control 16 1450 March 12, 2012
by hevans
Windows not detecting device 3 846 March 10, 2012
by hevans
Voltage throught MCU 5 741 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 11082 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2298 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2659 March 01, 2012
by hevans
Up and running... 3 719 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 927 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1003 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 852 February 24, 2012
by Rick_S
programming lcd trubs 7 945 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1310 February 18, 2012
by Rick_S
Oscilloscope 15 1911 February 18, 2012
by Osarus
How far away can a LM34 be? 16 4044 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1913 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1057 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2930 February 09, 2012
by mongo
Data transmission 3 1424 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1163 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1775 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 923 February 03, 2012
by BobaMosfet
connencting two ics to port 3 777 January 31, 2012
by tchilzer2
H bridge questions 6 1011 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1062 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1191 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1206 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2356 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1171 January 15, 2012
by Rick_S
Source of power? 19 1181 January 13, 2012
by mongo
symbol defined please? 4 1265 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5841 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 989 January 06, 2012
by boxvic
Basic LED circuit properties 8 1090 January 06, 2012
by boxvic
Getting Started 3 971 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1308 January 02, 2012
by bodangly
SMD reflow 16 1520 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1029 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1337 December 23, 2011
by BobaMosfet
Potentiometer 8 1479 December 23, 2011
by huzbum
Fun with Op-Amps 3 1680 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1239 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1028 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1156 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 840 November 27, 2011
by sazD
Initial Load 2 1122 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1262 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1882 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1209 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3928 November 10, 2011
by jfbrink
Servo Squitter Project 13 1096 November 09, 2011
by Heed
how do i run a program 4 903 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 997 November 07, 2011
by Heed
Motor control question 2 965 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2345 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1128 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 976 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 17435 October 24, 2011
by glendon
Measuring Capacitance 9 1882 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1101 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1609 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 6226 October 16, 2011
by sask55
RxD / TxD Questions 10 2136 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1195 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1187 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 883 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 974 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3737 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1703 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13663 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1892 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 985 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2350 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3939 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3753 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1182 September 01, 2011
by BobaMosfet
Dim LED 3 994 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1179 August 23, 2011
by Twarter369
Easy Transistor Question 4 1401 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1965 August 18, 2011
by Ralphxyz
Building a coil?? 12 2099 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1241 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1031 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 831 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 829 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 6517 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1523 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1020 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1018 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1002 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2103 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1008 July 17, 2011
by codenamejupiterx
avr macpack 3 953 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1149 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1149 July 13, 2011
by BobaMosfet
Battery clip wires 3 935 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 820 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 860 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1077 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1517 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 5165 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1064 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1109 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2179 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1295 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1204 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1208 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1332 June 06, 2011
by mja
A couple of questions 3 952 June 06, 2011
by Ralphxyz
How much should I strip? 3 953 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1357 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1070 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1378 May 29, 2011
by Rick_S
Digital Input Question 4 1057 May 28, 2011
by frankdwest
PCB arrived 20 1157 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1553 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5654 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1586 May 09, 2011
by Noter
IR current 6 1406 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1849 May 04, 2011
by hariharan
Heat sensors 21 1785 May 04, 2011
by Hexorg
error 1 2 1146 May 02, 2011
by hevans
Transistor vs mosfet 13 4336 May 01, 2011
by Noter
PCB trace width calculator 3 2038 April 24, 2011
by esoderberg
OLED display 10 1475 April 23, 2011
by Rick_S
Power Supplies 17 2420 April 22, 2011
by BobBolinger
LCD & battery&USB 4 944 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1285 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1054 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1423 April 19, 2011
by mongo
Connecting to external control voltages 4 1250 April 19, 2011
by bretm
IR current question 7 1106 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1615 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1380 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1277 April 10, 2011
by uml_12
Basic projects 3 1197 April 09, 2011
by mongo
REFLOW oven 22 2740 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4590 April 07, 2011
by bretm
unexpected MCU rebooting 82 2480 April 05, 2011
by sask55
REFLOW Soldering 3 1479 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1326 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2728 March 30, 2011
by bretm
Black Display on LCD 6 1315 March 28, 2011
by Druidman
32kHz clock 2 1271 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4381 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4228 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2202 March 16, 2011
by mongo
LCD problem 3 1241 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1770 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1886 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1238 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2265 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1554 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1749 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4741 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2990 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2394 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2921 February 19, 2011
by Lusitania
My first Impression 6 1389 February 16, 2011
by devinsbusiness
Understanding battery life 3 2183 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2182 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1647 February 05, 2011
by BobaMosfet
High voltage lines 26 2604 February 02, 2011
by mongo
USB 3 1213 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1753 February 02, 2011
by Jalex
Alternating LED circuit 4 1744 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2218 January 31, 2011
by il1019
Affordable oscilloscopes 43 7864 January 27, 2011
by BStory
"And"gate unfinished thought 2 1119 January 27, 2011
by Hexorg
replace MCU? 30 4863 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1625 January 25, 2011
by Ralphxyz
Multimeter! 12 3177 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2132 January 25, 2011
by Jalex
My LED Cube so far 25 5042 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1981 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1545 January 18, 2011
by dgikuljot
Counting 5 1033 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3538 January 17, 2011
by bretm
Programming 5 1568 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1970 January 11, 2011
by Yourself
Begining 7 1703 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1999 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1843 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1169 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1577 January 06, 2011
by Mujda
Data input voltage 6 1801 January 03, 2011
by Rick_S
MOSFET Question 7 1715 December 31, 2010
by Keyster
Transistor as a switch 5 1560 December 29, 2010
by Hexorg
Resistors 5 2039 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4728 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1589 December 28, 2010
by BobaMosfet
Relay ratings 2 1351 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 11262 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1402 December 17, 2010
by mongo
Power Rectifier 7 1544 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2596 December 14, 2010
by danuke
This a decent oscilloscope? 8 1792 December 14, 2010
by danuke
Do resistors in series really add up? 8 2331 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1890 December 09, 2010
by bretm
L293 H-Bridge 15 2367 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2300 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2617 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2013 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2182 November 24, 2010
by BobaMosfet
Op-amp not working 6 2235 November 24, 2010
by BobaMosfet
Python questions 4 2163 November 21, 2010
by tkopriva
CE Amp design 5 1434 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1787 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1416 November 05, 2010
by Mujda
PC4 not working?! 8 1117 November 04, 2010
by hapshetsut
Amplifiers 4 1423 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1961 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2128 October 04, 2010
by Scythium
radio interference from NerdKit 11 1399 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3403 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1925 September 11, 2010
by akajester
QFP and dreadboard 2 1611 September 02, 2010
by bretm
Getting power to the spinning part... 5 1795 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 5054 August 30, 2010
by Ralphxyz
morse code decoder 2 2091 August 26, 2010
by jonathan_m
Connecting to Computer 3 1891 August 25, 2010
by awesome
555 astable on breadboard 12 2957 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1428 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1891 August 19, 2010
by hevans
mosfet 3 1454 August 13, 2010
by hevans
Good material on learning electronics. 8 1572 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1274 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2004 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1990 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 4041 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2375 July 02, 2010
by mongo
Electro Cardio Gram 4 1999 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1363 June 12, 2010
by Wobbler
Voltage Regulator 20 2359 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2469 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2376 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2379 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1691 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1289 June 06, 2010
by Kafke
TSSOP IC! 4 1708 June 03, 2010
by mrobbins
AVcc 2 2049 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1546 May 31, 2010
by hevans
Cable Driver 2 1288 May 31, 2010
by mongo
Best 9V adapter to use 2 1523 May 28, 2010
by mongo
Unidirectional microphones 5 1731 May 27, 2010
by mongo
Servo question 3 1457 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1722 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1505 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2318 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4147 May 21, 2010
by hevans
Chinese Solenoid 15 1619 May 10, 2010
by treymd
avrisp mkii circuit 4 2634 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1562 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3324 May 07, 2010
by rajabalu21
Simple Power Switch 6 1270 May 05, 2010
by avicell
I can haz speed! 3 1524 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2569 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2142 April 21, 2010
by bretm
Help with choosing the right resistor 10 2350 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 3000 April 15, 2010
by bretm
Resistor 4 1301 April 15, 2010
by mongo
MCU digital input pins 3 1178 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1728 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5663 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3067 March 28, 2010
by carlhako
Laptop ground safety question 3 1685 March 27, 2010
by ese
LM34 R-C Damper 5 1930 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1717 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1361 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2691 March 23, 2010
by ese
constant system reset 3 1269 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1589 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2317 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2077 March 17, 2010
by Frozenlock
What is -VS? 6 1902 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3085 March 04, 2010
by treymd
Using MCU to connect two wires 3 1701 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4184 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1522 March 02, 2010
by Solorbob
Deciphering power resistors 11 1629 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1503 March 01, 2010
by nrotstan
Understanding LEDs 16 2783 March 01, 2010
by michaeldallas
What's the part I need? 5 1432 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 6190 February 23, 2010
by rajabalu21
Too much power? 14 2078 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2646 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1865 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 5208 February 18, 2010
by Rick_S
Serial port interface circuit 2 2322 February 17, 2010
by mongo
OBDII project 3 1568 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2648 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3081 February 13, 2010
by BobaMosfet
Digital pots 5 1592 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1715 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2597 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2236 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3075 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1838 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2836 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4411 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2149 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1655 December 27, 2009
by jgauthier
Servo Signal Noise 2 1379 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3534 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 6056 December 10, 2009
by georgio
Relays and transistors 12 5351 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4093 December 09, 2009
by Rick_S
IR Detector 7 2615 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2201 November 19, 2009
by mikedoug
Debug with lcd 6 2002 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1964 November 15, 2009
by tech20
Understanding output pin characteristics 4 1608 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3246 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1908 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 24739 October 30, 2009
by BobaMosfet
DIY header unit 2 2213 October 10, 2009
by rusirius
Thermostat Logging 6 2522 October 09, 2009
by luke
Understanding transistors 6 3024 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 6012 October 07, 2009
by mikedoug
Currant booster 3 1440 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2065 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5477 August 27, 2009
by hevans
Which LED? 14 2062 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2774 August 07, 2009
by mongo
pull up, pull down resistors 7 12475 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5554 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3402 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2998 July 07, 2009
by sector0
Reset switch for circuit 3 1887 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24199 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2125 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1943 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1945 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2510 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1838 May 06, 2009
by paulip

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Did you know that sound travels via pressure waves in the air, and you can make these with a piezoelectric buzzer? Learn more...