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Basic Electronics

NerdKits » Forums » Basic Electronics (448 threads, 3873 posts)
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My new 3D Printer 33 5530 October 09, 2014
by Rick_S
AtMega 644 2 160 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 169 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 404 June 02, 2014
by JKITSON
Automated programming mode? 9 641 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 502 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 235 January 28, 2014
by lailai
What kind of error is this? 4 334 January 23, 2014
by Noter
How to double a DC voltage? 20 2208 January 12, 2014
by JKITSON
Is the code the driver? 2 290 January 12, 2014
by Ralphxyz
Miniature headers 6 491 January 01, 2014
by Ralphxyz
BLDC 8 432 December 23, 2013
by esoderberg
I need help finding a terminal. 17 822 November 26, 2013
by Rick_S
GLCD SPI problems 14 1144 November 10, 2013
by andyi
Moving on... 7 616 November 08, 2013
by Pr0ject
Power supply questions 4 769 October 31, 2013
by sask55
OLED 4 465 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1743 September 22, 2013
by sask55
Opto Interrupter once again 14 1062 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 494 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2422 September 02, 2013
by Ralphxyz
USB cable specifications 7 599 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 574 August 27, 2013
by Affarram
XMEGA Breakout 8 654 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 405 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 593 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 630 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4115 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3452 June 18, 2013
by Noter
Two Wrongs Make it Right 3 576 May 22, 2013
by meltbox360
accurate time for a real time clock 5 766 April 08, 2013
by pcbolt
Using diode to drop voltage 12 11516 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 443 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 627 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 996 March 14, 2013
by mongo
Current vs Voltage 8 926 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 699 March 09, 2013
by lnino
Electric current 2 477 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1544 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1058 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1063 February 28, 2013
by BobaMosfet
Control electronic door opener 15 732 February 24, 2013
by lnino
Relay Question 27 2664 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1456 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 776 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1010 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 776 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 805 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1115 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 801 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1063 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 624 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 606 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 646 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 3060 November 18, 2012
by carlhako
SPI slave clock 6 788 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 694 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 11171 October 23, 2012
by Noter
NPN circuit connection quandry 4 888 September 24, 2012
by edb
Simple I/O circuit 4 764 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 531 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 484 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1505 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 815 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1794 September 13, 2012
by dan_engbers
Electronics simulation 8 969 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2230 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 760 August 20, 2012
by rblalock
louder sound 2 574 August 18, 2012
by mongo
connector or cable for LCD display? 4 768 August 13, 2012
by missle3944
Powering L.E.Ds 5 737 August 09, 2012
by BobaMosfet
Wires in U.K 5 808 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 855 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1914 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1969 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1057 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 9896 July 21, 2012
by lnino
um help 6 585 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 858 July 18, 2012
by Ralphxyz
help me 11 932 July 03, 2012
by Rick_S
Crystal Oscillator question 2 726 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1018 June 24, 2012
by Ralphxyz
HELP 3 638 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 5789 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 620 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1216 June 17, 2012
by RogerFL
Programmable current source 6 1134 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1005 June 11, 2012
by mongo
HELP 6 732 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 966 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 7396 May 24, 2012
by Ralphxyz
i need a code 8 1039 May 15, 2012
by pcbolt
Clock Accuracy 30 3746 May 14, 2012
by HexManiac
Relays and Controlling them 9 946 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1113 May 09, 2012
by RogerFL
Powering your NerdKit 7 883 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 813 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1200 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 967 April 24, 2012
by pcbolt
Programs will not run 6 841 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1088 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 936 April 09, 2012
by Ralphxyz
Path Lights controller 2 796 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 886 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1030 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 957 April 01, 2012
by JamesFysh
Question on LCD screen 5 872 March 30, 2012
by billtaichi
Is this Capaciator Good 4 833 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 849 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1448 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1789 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 961 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 889 March 15, 2012
by mongo
Digital servo issues! 9 1135 March 15, 2012
by Rick_S
Brushless motor control 16 1403 March 12, 2012
by hevans
Windows not detecting device 3 833 March 10, 2012
by hevans
Voltage throught MCU 5 724 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10907 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2209 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2556 March 01, 2012
by hevans
Up and running... 3 705 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 905 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 987 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 831 February 24, 2012
by Rick_S
programming lcd trubs 7 933 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1258 February 18, 2012
by Rick_S
Oscilloscope 15 1879 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3973 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1888 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1040 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2837 February 09, 2012
by mongo
Data transmission 3 1408 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1144 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1736 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 908 February 03, 2012
by BobaMosfet
connencting two ics to port 3 763 January 31, 2012
by tchilzer2
H bridge questions 6 1000 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1046 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1179 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1185 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2288 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1157 January 15, 2012
by Rick_S
Source of power? 19 1166 January 13, 2012
by mongo
symbol defined please? 4 1242 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5646 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 973 January 06, 2012
by boxvic
Basic LED circuit properties 8 1066 January 06, 2012
by boxvic
Getting Started 3 961 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1276 January 02, 2012
by bodangly
SMD reflow 16 1492 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1013 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1318 December 23, 2011
by BobaMosfet
Potentiometer 8 1458 December 23, 2011
by huzbum
Fun with Op-Amps 3 1639 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1219 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1005 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1132 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 825 November 27, 2011
by sazD
Initial Load 2 1095 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1246 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1850 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1185 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3874 November 10, 2011
by jfbrink
Servo Squitter Project 13 1072 November 09, 2011
by Heed
how do i run a program 4 880 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 979 November 07, 2011
by Heed
Motor control question 2 944 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2287 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1111 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 955 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 16507 October 24, 2011
by glendon
Measuring Capacitance 9 1848 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1081 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1575 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 6036 October 16, 2011
by sask55
RxD / TxD Questions 10 2085 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1174 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1169 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 868 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 959 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3638 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1661 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13487 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1832 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 972 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2286 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3792 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3715 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1168 September 01, 2011
by BobaMosfet
Dim LED 3 981 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1156 August 23, 2011
by Twarter369
Easy Transistor Question 4 1388 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1917 August 18, 2011
by Ralphxyz
Building a coil?? 12 2055 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1224 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1007 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 819 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 814 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 6299 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1504 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1007 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 1003 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 988 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2057 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 998 July 17, 2011
by codenamejupiterx
avr macpack 3 938 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1132 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1136 July 13, 2011
by BobaMosfet
Battery clip wires 3 925 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 803 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 847 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1058 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1495 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 5023 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1040 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1087 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2143 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1284 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1183 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1195 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1317 June 06, 2011
by mja
A couple of questions 3 937 June 06, 2011
by Ralphxyz
How much should I strip? 3 941 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1338 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1059 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1357 May 29, 2011
by Rick_S
Digital Input Question 4 1040 May 28, 2011
by frankdwest
PCB arrived 20 1145 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1532 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5422 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1560 May 09, 2011
by Noter
IR current 6 1384 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1825 May 04, 2011
by hariharan
Heat sensors 21 1757 May 04, 2011
by Hexorg
error 1 2 1133 May 02, 2011
by hevans
Transistor vs mosfet 13 4225 May 01, 2011
by Noter
PCB trace width calculator 3 2007 April 24, 2011
by esoderberg
OLED display 10 1456 April 23, 2011
by Rick_S
Power Supplies 17 2396 April 22, 2011
by BobBolinger
LCD & battery&USB 4 930 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1262 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1037 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1398 April 19, 2011
by mongo
Connecting to external control voltages 4 1231 April 19, 2011
by bretm
IR current question 7 1086 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1589 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1349 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1257 April 10, 2011
by uml_12
Basic projects 3 1181 April 09, 2011
by mongo
REFLOW oven 22 2694 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4503 April 07, 2011
by bretm
unexpected MCU rebooting 82 2442 April 05, 2011
by sask55
REFLOW Soldering 3 1449 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1303 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2666 March 30, 2011
by bretm
Black Display on LCD 6 1288 March 28, 2011
by Druidman
32kHz clock 2 1252 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4313 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4184 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2165 March 16, 2011
by mongo
LCD problem 3 1220 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1734 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1860 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1221 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2211 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1522 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1713 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4623 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2935 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2368 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2836 February 19, 2011
by Lusitania
My first Impression 6 1366 February 16, 2011
by devinsbusiness
Understanding battery life 3 2153 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2151 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1620 February 05, 2011
by BobaMosfet
High voltage lines 26 2554 February 02, 2011
by mongo
USB 3 1195 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1728 February 02, 2011
by Jalex
Alternating LED circuit 4 1718 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2165 January 31, 2011
by il1019
Affordable oscilloscopes 43 7826 January 27, 2011
by BStory
"And"gate unfinished thought 2 1098 January 27, 2011
by Hexorg
replace MCU? 30 4812 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1605 January 25, 2011
by Ralphxyz
Multimeter! 12 3149 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2103 January 25, 2011
by Jalex
My LED Cube so far 25 4960 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1954 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1522 January 18, 2011
by dgikuljot
Counting 5 1014 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3474 January 17, 2011
by bretm
Programming 5 1545 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1946 January 11, 2011
by Yourself
Begining 7 1680 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1969 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1811 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1145 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1552 January 06, 2011
by Mujda
Data input voltage 6 1775 January 03, 2011
by Rick_S
MOSFET Question 7 1689 December 31, 2010
by Keyster
Transistor as a switch 5 1541 December 29, 2010
by Hexorg
Resistors 5 2014 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4664 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1553 December 28, 2010
by BobaMosfet
Relay ratings 2 1333 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 11097 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1382 December 17, 2010
by mongo
Power Rectifier 7 1521 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2558 December 14, 2010
by danuke
This a decent oscilloscope? 8 1774 December 14, 2010
by danuke
Do resistors in series really add up? 8 2299 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1860 December 09, 2010
by bretm
L293 H-Bridge 15 2337 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2270 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2562 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1989 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2149 November 24, 2010
by BobaMosfet
Op-amp not working 6 2188 November 24, 2010
by BobaMosfet
Python questions 4 2139 November 21, 2010
by tkopriva
CE Amp design 5 1415 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1762 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1389 November 05, 2010
by Mujda
PC4 not working?! 8 1097 November 04, 2010
by hapshetsut
Amplifiers 4 1402 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1938 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2095 October 04, 2010
by Scythium
radio interference from NerdKit 11 1377 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3340 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1902 September 11, 2010
by akajester
QFP and dreadboard 2 1587 September 02, 2010
by bretm
Getting power to the spinning part... 5 1770 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4944 August 30, 2010
by Ralphxyz
morse code decoder 2 2065 August 26, 2010
by jonathan_m
Connecting to Computer 3 1865 August 25, 2010
by awesome
555 astable on breadboard 12 2926 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1410 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1855 August 19, 2010
by hevans
mosfet 3 1426 August 13, 2010
by hevans
Good material on learning electronics. 8 1546 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1254 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1982 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1962 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3968 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2339 July 02, 2010
by mongo
Electro Cardio Gram 4 1976 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1341 June 12, 2010
by Wobbler
Voltage Regulator 20 2326 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2445 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2340 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2348 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1670 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1271 June 06, 2010
by Kafke
TSSOP IC! 4 1683 June 03, 2010
by mrobbins
AVcc 2 2028 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1518 May 31, 2010
by hevans
Cable Driver 2 1267 May 31, 2010
by mongo
Best 9V adapter to use 2 1500 May 28, 2010
by mongo
Unidirectional microphones 5 1709 May 27, 2010
by mongo
Servo question 3 1433 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1700 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1481 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2286 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4067 May 21, 2010
by hevans
Chinese Solenoid 15 1602 May 10, 2010
by treymd
avrisp mkii circuit 4 2613 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1541 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3227 May 07, 2010
by rajabalu21
Simple Power Switch 6 1251 May 05, 2010
by avicell
I can haz speed! 3 1502 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2535 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2118 April 21, 2010
by bretm
Help with choosing the right resistor 10 2319 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2960 April 15, 2010
by bretm
Resistor 4 1278 April 15, 2010
by mongo
MCU digital input pins 3 1158 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1710 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5594 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3044 March 28, 2010
by carlhako
Laptop ground safety question 3 1658 March 27, 2010
by ese
LM34 R-C Damper 5 1879 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1692 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1340 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2663 March 23, 2010
by ese
constant system reset 3 1252 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1569 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2288 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2056 March 17, 2010
by Frozenlock
What is -VS? 6 1863 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3054 March 04, 2010
by treymd
Using MCU to connect two wires 3 1679 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4130 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1490 March 02, 2010
by Solorbob
Deciphering power resistors 11 1603 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1478 March 01, 2010
by nrotstan
Understanding LEDs 16 2748 March 01, 2010
by michaeldallas
What's the part I need? 5 1410 February 27, 2010
by Hexorg
How to convert 6V rechargeable NiCd to 5V regulated to power NerdKit 5 6093 February 23, 2010
by rajabalu21
Too much power? 14 2057 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2624 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1841 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 5076 February 18, 2010
by Rick_S
Serial port interface circuit 2 2294 February 17, 2010
by mongo
OBDII project 3 1546 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2600 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3051 February 13, 2010
by BobaMosfet
Digital pots 5 1568 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1697 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2578 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2191 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3037 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1816 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2785 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4371 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2114 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1631 December 27, 2009
by jgauthier
Servo Signal Noise 2 1355 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3506 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5976 December 10, 2009
by georgio
Relays and transistors 12 5319 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4032 December 09, 2009
by Rick_S
IR Detector 7 2558 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2167 November 19, 2009
by mikedoug
Debug with lcd 6 1981 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1944 November 15, 2009
by tech20
Understanding output pin characteristics 4 1590 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3218 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1887 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 24369 October 30, 2009
by BobaMosfet
DIY header unit 2 2193 October 10, 2009
by rusirius
Thermostat Logging 6 2485 October 09, 2009
by luke
Understanding transistors 6 3005 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5968 October 07, 2009
by mikedoug
Currant booster 3 1420 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2042 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5378 August 27, 2009
by hevans
Which LED? 14 2043 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2751 August 07, 2009
by mongo
pull up, pull down resistors 7 12399 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5453 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3379 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2970 July 07, 2009
by sector0
Reset switch for circuit 3 1864 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24109 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2099 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1919 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1921 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2484 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1818 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...