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Basic Electronics

NerdKits » Forums » Basic Electronics (448 threads, 3881 posts)
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My new 3D Printer 41 9523 December 02, 2014
by Ralphxyz
AtMega 644 2 315 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 225 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 451 June 02, 2014
by JKITSON
Automated programming mode? 9 693 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 541 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 276 January 28, 2014
by lailai
What kind of error is this? 4 378 January 23, 2014
by Noter
How to double a DC voltage? 20 2469 January 12, 2014
by JKITSON
Is the code the driver? 2 324 January 12, 2014
by Ralphxyz
Miniature headers 6 536 January 01, 2014
by Ralphxyz
BLDC 8 468 December 23, 2013
by esoderberg
I need help finding a terminal. 17 859 November 26, 2013
by Rick_S
GLCD SPI problems 14 1288 November 10, 2013
by andyi
Moving on... 7 658 November 08, 2013
by Pr0ject
Power supply questions 4 831 October 31, 2013
by sask55
OLED 4 497 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1946 September 22, 2013
by sask55
Opto Interrupter once again 14 1186 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 543 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2578 September 02, 2013
by Ralphxyz
USB cable specifications 7 645 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 622 August 27, 2013
by Affarram
XMEGA Breakout 8 715 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 445 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 662 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 674 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4191 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3684 June 18, 2013
by Noter
Two Wrongs Make it Right 3 603 May 22, 2013
by meltbox360
accurate time for a real time clock 5 805 April 08, 2013
by pcbolt
Using diode to drop voltage 12 12768 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 471 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 659 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 1097 March 14, 2013
by mongo
Current vs Voltage 8 980 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 754 March 09, 2013
by lnino
Electric current 2 510 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1679 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1169 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1150 February 28, 2013
by BobaMosfet
Control electronic door opener 15 764 February 24, 2013
by lnino
Relay Question 27 2737 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1558 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 835 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1069 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 819 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 835 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1145 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 846 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1131 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 659 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 636 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 671 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 3226 November 18, 2012
by carlhako
SPI slave clock 6 850 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 720 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 11515 October 23, 2012
by Noter
NPN circuit connection quandry 4 937 September 24, 2012
by edb
Simple I/O circuit 4 794 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 566 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 510 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1577 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 841 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1874 September 13, 2012
by dan_engbers
Electronics simulation 8 1021 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2370 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 792 August 20, 2012
by rblalock
louder sound 2 613 August 18, 2012
by mongo
connector or cable for LCD display? 4 794 August 13, 2012
by missle3944
Powering L.E.Ds 5 775 August 09, 2012
by BobaMosfet
Wires in U.K 5 850 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 876 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1968 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 2089 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1095 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 10314 July 21, 2012
by lnino
um help 6 608 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 890 July 18, 2012
by Ralphxyz
help me 11 972 July 03, 2012
by Rick_S
Crystal Oscillator question 2 747 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1083 June 24, 2012
by Ralphxyz
HELP 3 665 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 6187 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 644 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1273 June 17, 2012
by RogerFL
Programmable current source 6 1188 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1051 June 11, 2012
by mongo
HELP 6 765 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 996 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 8096 May 24, 2012
by Ralphxyz
i need a code 8 1079 May 15, 2012
by pcbolt
Clock Accuracy 30 3827 May 14, 2012
by HexManiac
Relays and Controlling them 9 988 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1167 May 09, 2012
by RogerFL
Powering your NerdKit 7 906 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 847 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1290 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 1011 April 24, 2012
by pcbolt
Programs will not run 6 877 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1129 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 978 April 09, 2012
by Ralphxyz
Path Lights controller 2 829 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 926 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1076 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 983 April 01, 2012
by JamesFysh
Question on LCD screen 5 897 March 30, 2012
by billtaichi
Is this Capaciator Good 4 870 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 1645 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1488 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1892 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 1004 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 945 March 15, 2012
by mongo
Digital servo issues! 9 1189 March 15, 2012
by Rick_S
Brushless motor control 16 1477 March 12, 2012
by hevans
Windows not detecting device 3 860 March 10, 2012
by hevans
Voltage throught MCU 5 753 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 11255 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2369 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2748 March 01, 2012
by hevans
Up and running... 3 732 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 946 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 1020 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 869 February 24, 2012
by Rick_S
programming lcd trubs 7 953 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1343 February 18, 2012
by Rick_S
Oscilloscope 15 1944 February 18, 2012
by Osarus
How far away can a LM34 be? 16 4101 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1932 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1069 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2984 February 09, 2012
by mongo
Data transmission 3 1435 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1185 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1803 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 939 February 03, 2012
by BobaMosfet
connencting two ics to port 3 788 January 31, 2012
by tchilzer2
H bridge questions 6 1030 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1075 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1209 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1222 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2410 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1183 January 15, 2012
by Rick_S
Source of power? 19 1193 January 13, 2012
by mongo
symbol defined please? 4 1288 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5998 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 1003 January 06, 2012
by boxvic
Basic LED circuit properties 8 1113 January 06, 2012
by boxvic
Getting Started 3 983 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1331 January 02, 2012
by bodangly
SMD reflow 16 1559 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1043 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1356 December 23, 2011
by BobaMosfet
Potentiometer 8 1493 December 23, 2011
by huzbum
Fun with Op-Amps 3 1708 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1256 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1062 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1179 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 855 November 27, 2011
by sazD
Initial Load 2 1141 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1286 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1911 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1224 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3959 November 10, 2011
by jfbrink
Servo Squitter Project 13 1112 November 09, 2011
by Heed
how do i run a program 4 919 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 1013 November 07, 2011
by Heed
Motor control question 2 976 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2391 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1141 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 996 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 18123 October 24, 2011
by glendon
Measuring Capacitance 9 1904 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1113 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1639 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 6388 October 16, 2011
by sask55
RxD / TxD Questions 10 2187 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1215 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1204 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 899 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 988 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3818 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1729 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13805 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1931 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 996 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2395 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 4051 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3792 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1198 September 01, 2011
by BobaMosfet
Dim LED 3 1007 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1199 August 23, 2011
by Twarter369
Easy Transistor Question 4 1423 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1991 August 18, 2011
by Ralphxyz
Building a coil?? 12 2128 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1255 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1048 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 845 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 844 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 6638 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1547 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1049 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1035 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 1020 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2146 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 1022 July 17, 2011
by codenamejupiterx
avr macpack 3 967 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1166 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1158 July 13, 2011
by BobaMosfet
Battery clip wires 3 951 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 835 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 874 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1108 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1531 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 5261 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1084 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1123 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2207 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1305 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1229 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1226 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1346 June 06, 2011
by mja
A couple of questions 3 966 June 06, 2011
by Ralphxyz
How much should I strip? 3 968 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1370 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1081 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1394 May 29, 2011
by Rick_S
Digital Input Question 4 1067 May 28, 2011
by frankdwest
PCB arrived 20 1167 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1568 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5801 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1605 May 09, 2011
by Noter
IR current 6 1424 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1874 May 04, 2011
by hariharan
Heat sensors 21 1804 May 04, 2011
by Hexorg
error 1 2 1159 May 02, 2011
by hevans
Transistor vs mosfet 13 4429 May 01, 2011
by Noter
PCB trace width calculator 3 2053 April 24, 2011
by esoderberg
OLED display 10 1500 April 23, 2011
by Rick_S
Power Supplies 17 2440 April 22, 2011
by BobBolinger
LCD & battery&USB 4 962 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1301 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1063 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1439 April 19, 2011
by mongo
Connecting to external control voltages 4 1262 April 19, 2011
by bretm
IR current question 7 1122 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1632 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1409 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1290 April 10, 2011
by uml_12
Basic projects 3 1206 April 09, 2011
by mongo
REFLOW oven 22 2776 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4657 April 07, 2011
by bretm
unexpected MCU rebooting 82 2510 April 05, 2011
by sask55
REFLOW Soldering 3 1497 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1341 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2747 March 30, 2011
by bretm
Black Display on LCD 6 1331 March 28, 2011
by Druidman
32kHz clock 2 1283 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4431 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4260 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2225 March 16, 2011
by mongo
LCD problem 3 1258 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1789 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1907 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1249 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2309 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1583 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1770 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4850 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 3036 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2413 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2980 February 19, 2011
by Lusitania
My first Impression 6 1402 February 16, 2011
by devinsbusiness
Understanding battery life 3 2202 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2209 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1667 February 05, 2011
by BobaMosfet
High voltage lines 26 2633 February 02, 2011
by mongo
USB 3 1226 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1777 February 02, 2011
by Jalex
Alternating LED circuit 4 1754 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2248 January 31, 2011
by il1019
Affordable oscilloscopes 43 7909 January 27, 2011
by BStory
"And"gate unfinished thought 2 1139 January 27, 2011
by Hexorg
replace MCU? 30 4906 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1652 January 25, 2011
by Ralphxyz
Multimeter! 12 3193 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2161 January 25, 2011
by Jalex
My LED Cube so far 25 5111 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1999 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1575 January 18, 2011
by dgikuljot
Counting 5 1047 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3586 January 17, 2011
by bretm
Programming 5 1588 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1986 January 11, 2011
by Yourself
Begining 7 1717 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 2016 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1857 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1186 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1593 January 06, 2011
by Mujda
Data input voltage 6 1825 January 03, 2011
by Rick_S
MOSFET Question 7 1733 December 31, 2010
by Keyster
Transistor as a switch 5 1575 December 29, 2010
by Hexorg
Resistors 5 2060 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4765 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1615 December 28, 2010
by BobaMosfet
Relay ratings 2 1370 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 11414 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1419 December 17, 2010
by mongo
Power Rectifier 7 1561 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2618 December 14, 2010
by danuke
This a decent oscilloscope? 8 1809 December 14, 2010
by danuke
Do resistors in series really add up? 8 2355 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1914 December 09, 2010
by bretm
L293 H-Bridge 15 2399 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2323 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2647 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 2031 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2214 November 24, 2010
by BobaMosfet
Op-amp not working 6 2268 November 24, 2010
by BobaMosfet
Python questions 4 2186 November 21, 2010
by tkopriva
CE Amp design 5 1450 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1801 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1438 November 05, 2010
by Mujda
PC4 not working?! 8 1130 November 04, 2010
by hapshetsut
Amplifiers 4 1441 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1979 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2149 October 04, 2010
by Scythium
radio interference from NerdKit 11 1415 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3470 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1943 September 11, 2010
by akajester
QFP and dreadboard 2 1633 September 02, 2010
by bretm
Getting power to the spinning part... 5 1816 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 5115 August 30, 2010
by Ralphxyz
morse code decoder 2 2115 August 26, 2010
by jonathan_m
Connecting to Computer 3 1908 August 25, 2010
by awesome
555 astable on breadboard 12 2982 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1443 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1904 August 19, 2010
by hevans
mosfet 3 1470 August 13, 2010
by hevans
Good material on learning electronics. 8 1595 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1290 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 2029 August 02, 2010
by mrobbins
More batteries = more voltage? 3 2011 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 4102 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2420 July 02, 2010
by mongo
Electro Cardio Gram 4 2020 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1376 June 12, 2010
by Wobbler
Voltage Regulator 20 2388 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2489 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2403 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2407 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1707 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1308 June 06, 2010
by Kafke
TSSOP IC! 4 1721 June 03, 2010
by mrobbins
AVcc 2 2067 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1560 May 31, 2010
by hevans
Cable Driver 2 1305 May 31, 2010
by mongo
Best 9V adapter to use 2 1542 May 28, 2010
by mongo
Unidirectional microphones 5 1751 May 27, 2010
by mongo
Servo question 3 1480 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1751 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1526 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2350 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4185 May 21, 2010
by hevans
Chinese Solenoid 15 1634 May 10, 2010
by treymd
avrisp mkii circuit 4 2655 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1576 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3384 May 07, 2010
by rajabalu21
Simple Power Switch 6 1289 May 05, 2010
by avicell
I can haz speed! 3 1545 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2589 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2162 April 21, 2010
by bretm
Help with choosing the right resistor 10 2382 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 3050 April 15, 2010
by bretm
Resistor 4 1316 April 15, 2010
by mongo
MCU digital input pins 3 1197 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1742 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5708 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3085 March 28, 2010
by carlhako
Laptop ground safety question 3 1708 March 27, 2010
by ese
LM34 R-C Damper 5 1964 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1735 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1380 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2715 March 23, 2010
by ese
constant system reset 3 1281 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1609 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2343 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2098 March 17, 2010
by Frozenlock
What is -VS? 6 1937 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3108 March 04, 2010
by treymd
Using MCU to connect two wires 3 1719 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4231 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1546 March 02, 2010
by Solorbob
Deciphering power resistors 11 1646 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1529 March 01, 2010
by nrotstan
Understanding LEDs 16 2820 March 01, 2010
by michaeldallas
What's the part I need? 5 1453 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 6246 February 23, 2010
by rajabalu21
Too much power? 14 2095 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2664 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1894 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 5294 February 18, 2010
by Rick_S
Serial port interface circuit 2 2350 February 17, 2010
by mongo
OBDII project 3 1588 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2685 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3122 February 13, 2010
by BobaMosfet
Digital pots 5 1613 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1727 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2622 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2257 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3108 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1853 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2871 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4440 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2173 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1679 December 27, 2009
by jgauthier
Servo Signal Noise 2 1390 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3568 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 6118 December 10, 2009
by georgio
Relays and transistors 12 5372 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4120 December 09, 2009
by Rick_S
IR Detector 7 2661 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2228 November 19, 2009
by mikedoug
Debug with lcd 6 2016 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1977 November 15, 2009
by tech20
Understanding output pin characteristics 4 1624 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3277 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1926 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 24971 October 30, 2009
by BobaMosfet
DIY header unit 2 2227 October 10, 2009
by rusirius
Thermostat Logging 6 2549 October 09, 2009
by luke
Understanding transistors 6 3051 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 6049 October 07, 2009
by mikedoug
Currant booster 3 1457 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2087 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5525 August 27, 2009
by hevans
Which LED? 14 2077 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2796 August 07, 2009
by mongo
pull up, pull down resistors 7 12549 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5612 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3423 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 3024 July 07, 2009
by sector0
Reset switch for circuit 3 1906 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24275 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2142 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1957 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1965 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2526 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1854 May 06, 2009
by paulip

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Did you know that 20 LEDs can be controlled from 11 microcontroller pins, to make a twinkling heart outline? Learn more...