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Basic Electronics

NerdKits » Forums » Basic Electronics (448 threads, 3873 posts)
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My new 3D Printer 33 5247 October 09, 2014
by Rick_S
AtMega 644 2 152 September 06, 2014
by Rick_S
Switching between +5v and -5V 2 166 August 07, 2014
by Rick_S
Are there hobby printers for my microproccessor? 4 403 June 02, 2014
by JKITSON
Automated programming mode? 9 635 April 08, 2014
by Rick_S
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 5 501 January 30, 2014
by BobaMosfet
Shuttering with the Nerdkit & piezo buzzer (Can't post in Support, gives error) 1 232 January 28, 2014
by lailai
What kind of error is this? 4 331 January 23, 2014
by Noter
How to double a DC voltage? 20 2189 January 12, 2014
by JKITSON
Is the code the driver? 2 287 January 12, 2014
by Ralphxyz
Miniature headers 6 491 January 01, 2014
by Ralphxyz
BLDC 8 430 December 23, 2013
by esoderberg
I need help finding a terminal. 17 817 November 26, 2013
by Rick_S
GLCD SPI problems 14 1134 November 10, 2013
by andyi
Moving on... 7 612 November 08, 2013
by Pr0ject
Power supply questions 4 767 October 31, 2013
by sask55
OLED 4 465 October 29, 2013
by esoderberg
Thermocouple wiring?? 19 1719 September 22, 2013
by sask55
Opto Interrupter once again 14 1055 September 19, 2013
by scootergarrett
FFC/FPC connection ideas? 4 491 September 10, 2013
by Ralphxyz
A3977 Stepper Motor Driver 42 2405 September 02, 2013
by Ralphxyz
USB cable specifications 7 597 August 29, 2013
by Noter
Help with reading UART Stream on mac 9 571 August 27, 2013
by Affarram
XMEGA Breakout 8 653 August 26, 2013
by JKITSON
Can someone help me with LDOs? 5 404 August 21, 2013
by BobaMosfet
lower voltage of sensor output LM335 5 591 August 20, 2013
by Osarus
TQFP ATmega 168 capacitors 6 630 August 01, 2013
by scootergarrett
Stepper Motor Programming 154 4101 July 21, 2013
by sask55
Low Voltage Level Translator That Fits the MCU and Breadboard 63 3432 June 18, 2013
by Noter
Two Wrongs Make it Right 3 573 May 22, 2013
by meltbox360
accurate time for a real time clock 5 765 April 08, 2013
by pcbolt
Using diode to drop voltage 12 11387 March 27, 2013
by Ralphxyz
Cannot understand the pins 3 442 March 27, 2013
by oshjdf
Since it is kinda slow around here I thought I'd ask .... 6 625 March 15, 2013
by sask55
What is the purpose of 1000 ohm resistor for LCD's pin 3? 10 993 March 14, 2013
by mongo
Current vs Voltage 8 922 March 14, 2013
by sask55
Control LED Stripes with 2N7000 MOSFET 3 696 March 09, 2013
by lnino
Electric current 2 475 March 08, 2013
by Ralphxyz
How to power up Sim908 module? 4 1529 March 07, 2013
by Ralphxyz
Limiting battery discharge? 12 1043 March 03, 2013
by mongo
feeding a 7805 with 24VDC for <25mA output? 11 1058 February 28, 2013
by BobaMosfet
Control electronic door opener 15 728 February 24, 2013
by lnino
Relay Question 27 2652 February 19, 2013
by Noter
Rotary Encoder how to?? 21 1451 February 15, 2013
by BobaMosfet
Unipolar Stepper motor with ULN2003A, 4 767 February 11, 2013
by Ralphxyz
Introductory circuit design books 2 1006 January 30, 2013
by pcbolt
Anyone know how to program an 8052 MCU? 8 772 January 03, 2013
by BobaMosfet
Higher power supplies with ATMega168 (running higher voltage devices with lower powered ground) 4 802 December 30, 2012
by BobaMosfet
edX Free MIT online course 4 1112 December 22, 2012
by pcbolt
handling microprocessor and static eletricity 22 797 December 18, 2012
by JKITSON
Voltage Divider (Resistors) 9 1055 December 17, 2012
by GenHornet18
iphone-controlled R/C car project 2 618 November 26, 2012
by JimFrederickson
Wire broke off in LCD pin 6 604 November 26, 2012
by gsjbjt
Where to buy individual oscillators 8 644 November 26, 2012
by Pew446
Need help using a 5v relay to trip a 12v relay 9 3026 November 18, 2012
by carlhako
SPI slave clock 6 779 October 27, 2012
by Ralphxyz
Flow of Electricity through this circuit 8 693 October 26, 2012
by RogerFL
Why pick a crystal frequency of 14.7456 MHz? 16 11137 October 23, 2012
by Noter
NPN circuit connection quandry 4 884 September 24, 2012
by edb
Simple I/O circuit 4 758 September 23, 2012
by wadaltmon
Flow of Electricity through this circuit 1 529 September 21, 2012
by Davda
Flow of Electricity through this circuit 1 483 September 21, 2012
by Davda
LED - Common Anode 8 Segment Display 13 1501 September 20, 2012
by pcbolt
Can I Power the ATmega168 with 3.3 V? 4 813 September 20, 2012
by karam
Measuring PWM Duty Cycle 6 1785 September 13, 2012
by dan_engbers
Electronics simulation 8 967 August 31, 2012
by Chris100
LED Sign Help - How to control words 26 2224 August 27, 2012
by Rick_S
Help me on my learning path please :) 4 757 August 20, 2012
by rblalock
louder sound 2 572 August 18, 2012
by mongo
connector or cable for LCD display? 4 766 August 13, 2012
by missle3944
Powering L.E.Ds 5 734 August 09, 2012
by BobaMosfet
Wires in U.K 5 802 August 08, 2012
by mikey6879
Bluetooth Please HELP! 3 852 July 29, 2012
by Ralphxyz
Stepper Motor Motor Speed Control 13 1907 July 25, 2012
by sask55
Anything wrong with adding a large bypass capacitor? 6 1961 July 25, 2012
by bretm
Stepper Motor Direction Control 12 1053 July 21, 2012
by live4the1
Using Usbasp for attiny25 36 9857 July 21, 2012
by lnino
um help 6 583 July 20, 2012
by Rick_S
Stepper Motor L298N/L297N controller 3 854 July 18, 2012
by Ralphxyz
help me 11 931 July 03, 2012
by Rick_S
Crystal Oscillator question 2 725 July 02, 2012
by pcbolt
This will lead to more questions, how to use 20 volt battery to power projects and motors? 9 1010 June 24, 2012
by Ralphxyz
HELP 3 636 June 24, 2012
by Ralphxyz
Controlling Stepper Motors 35 5763 June 21, 2012
by mcguinnessdr
Geomagnetic vectors with a magnetoresistive sensor? 1 617 June 19, 2012
by lcruz007
PT100 temperature sensor reading 1 1212 June 17, 2012
by RogerFL
Programmable current source 6 1130 June 14, 2012
by JamesFysh
Increase range of an IR LED. 4 1001 June 11, 2012
by mongo
HELP 6 730 June 11, 2012
by mikeduff76
Running motor through the mircocontroller 8 964 June 09, 2012
by mongo
How can I detect the signal from a key fob? 15 7326 May 24, 2012
by Ralphxyz
i need a code 8 1038 May 15, 2012
by pcbolt
Clock Accuracy 30 3738 May 14, 2012
by HexManiac
Relays and Controlling them 9 941 May 10, 2012
by sask55
Using Internal 8 MHz Oscillator 4 1105 May 09, 2012
by RogerFL
Powering your NerdKit 7 878 April 27, 2012
by Ralphxyz
output pin is 2.5v when low 7 812 April 27, 2012
by BobaMosfet
Lm317 vs lm317t 2 1189 April 26, 2012
by BobaMosfet
nOOb looking for additional explanation 6 961 April 24, 2012
by pcbolt
Programs will not run 6 839 April 16, 2012
by E2MicroRobots
CE EMITTER_BIAS CONFIGURATION 12 1086 April 10, 2012
by Ralphxyz
Anyone used a 2 x 20 LCD? Which one? 10 933 April 09, 2012
by Ralphxyz
Path Lights controller 2 793 April 04, 2012
by pcbolt
Frequency Response and stability, how do you determine if your system is stable 7 885 April 02, 2012
by Akeshish
Very fundamental problem of operating with out a ground?? 11 1027 April 02, 2012
by sask55
line-level output, regulator ICs and op-amps?? 3 955 April 01, 2012
by JamesFysh
Question on LCD screen 5 868 March 30, 2012
by billtaichi
Is this Capaciator Good 4 830 March 29, 2012
by mongo
Oscilloscopes (for the umpteenth time) 5 846 March 29, 2012
by mongo
Basic Electronics Tutorial to Complement Nerdkits? 5 1445 March 26, 2012
by Ralphxyz
PIR motion sensor to trigger home wireless camera problems 4 1784 March 23, 2012
by 6ofhalfdozen
Ground connector on power supplies?? 3 958 March 15, 2012
by Ralphxyz
Why TC negative connected to ground 3 888 March 15, 2012
by mongo
Digital servo issues! 9 1131 March 15, 2012
by Rick_S
Brushless motor control 16 1387 March 12, 2012
by hevans
Windows not detecting device 3 831 March 10, 2012
by hevans
Voltage throught MCU 5 723 March 05, 2012
by Ralphxyz
Ignition Coil Driver 16 10871 March 02, 2012
by RevMoses
Rotary Encoder pinout (and other questions I am sure) 8 2195 March 02, 2012
by Ralphxyz
Why do you pass a MIC Vout through a capacitor? 12 2534 March 01, 2012
by hevans
Up and running... 3 704 March 01, 2012
by dvdsnyd
9v to vcc survivable? 5 904 February 26, 2012
by RogerFL
Accurate AREF for accurate ADC voltage readings 4 980 February 26, 2012
by carlhako
Problem with code (2 inputs) 12 829 February 24, 2012
by Rick_S
programming lcd trubs 7 930 February 19, 2012
by raccoons
17 super bright white LEDs at the same time...SAFE?! 5 1254 February 18, 2012
by Rick_S
Oscilloscope 15 1875 February 18, 2012
by Osarus
How far away can a LM34 be? 16 3963 February 14, 2012
by dcarter777
Need help understanding a relay schematic 4 1884 February 14, 2012
by Ralphxyz
It's true, we forget... 18 1035 February 12, 2012
by Farmerjoecoledge
Very Basic Batteries in a Series Question 12 2822 February 09, 2012
by mongo
Data transmission 3 1405 February 08, 2012
by amartinez
PowerLineCommunication(PLC) vs Wireless 3 1139 February 05, 2012
by mongo
CAPACITIVE POWER SUPPLY 6 1725 February 04, 2012
by met_fredrik
ADC reads fluctuating voltage when nothing is connected! 2 906 February 03, 2012
by BobaMosfet
connencting two ics to port 3 761 January 31, 2012
by tchilzer2
H bridge questions 6 998 January 27, 2012
by tchilzer2
Voltage Regulators and Efficiency... 3 1043 January 24, 2012
by JimFrederickson
Voltage Drop when LEDs Flash 8 1176 January 23, 2012
by Rocket_Man_Jeff
LED Array - Wall power problems 14 1180 January 19, 2012
by sask55
How to measure floating (isolated) high DC voltage? 5 2279 January 17, 2012
by jfbrink
Mysteries of Capaciators in Reverse 9 1155 January 15, 2012
by Rick_S
Source of power? 19 1164 January 13, 2012
by mongo
symbol defined please? 4 1237 January 13, 2012
by sonicgadgets
Best zero cross detection IC 14 5618 January 07, 2012
by met_fredrik
How hot is too hot for the voltage regulator 3 971 January 06, 2012
by boxvic
Basic LED circuit properties 8 1061 January 06, 2012
by boxvic
Getting Started 3 957 January 05, 2012
by Stretch
Source of randomness for the hardware RNG 20 1273 January 02, 2012
by bodangly
SMD reflow 16 1487 December 27, 2011
by boxvic
kirchhoff's voltage law... 3 1009 December 25, 2011
by jbolfiil
Phase Shifter or time delay circuit? 7 1316 December 23, 2011
by BobaMosfet
Potentiometer 8 1453 December 23, 2011
by huzbum
Fun with Op-Amps 3 1635 December 22, 2011
by treymd
Do I need an H-Bridge? 14 1216 December 19, 2011
by n1cl3
Need Diode Data Sheets 2 1001 December 07, 2011
by BobaMosfet
Odessy of the minds 5 1127 December 05, 2011
by BobaMosfet
Having trouble uploading my program keep getting this error: Any ideas anyone. Thanks 2 823 November 27, 2011
by sazD
Initial Load 2 1092 November 27, 2011
by missle3944
Using pushbuttons to increment position of servo 4 1237 November 23, 2011
by SpaceGhost
Yellow USB wire problem 15 1846 November 22, 2011
by Ralphxyz
Speakers with LEDs that light with the music 4 1180 November 14, 2011
by mongo
Strange behaviour with a DC motor 18 3864 November 10, 2011
by jfbrink
Servo Squitter Project 13 1069 November 09, 2011
by Heed
how do i run a program 4 874 November 08, 2011
by Heed
Help!!! my grades are in jeopordy 3 975 November 07, 2011
by Heed
Motor control question 2 940 November 04, 2011
by hevans
Help driving a high voltage Piezo 6 2278 November 02, 2011
by buffetrand
9V transformer more like ~15V 2 1109 October 31, 2011
by hevans
Tick Tock Clock question about which pins and long load times from DASA. 1 951 October 25, 2011
by apphilosophy
Why is reversing polarity a bad thing? 26 16360 October 24, 2011
by glendon
Measuring Capacitance 9 1839 October 24, 2011
by Ralphxyz
9 VDC 1000mA to much? 4 1078 October 21, 2011
by mongo
Hardware/software oscilloscope? 7 1570 October 19, 2011
by cyberion
R-2R ladder using random crap resistors 25 5988 October 16, 2011
by sask55
RxD / TxD Questions 10 2076 October 13, 2011
by Twarter369
Basic Electrical Toggle Switch question.. 5 1171 October 07, 2011
by scottmc94
Piezo Buzzer - help 6 1165 October 03, 2011
by scottmc94
Program Upload Error with initialload 17 866 September 30, 2011
by nerdgirl
I'm Curious About The Breadboard 2 956 September 27, 2011
by BobaMosfet
Any games for Learning Electronics? 12 3634 September 21, 2011
by sask55
Help re-purposing A Palm M100 Portable Keyboard. 3 1657 September 18, 2011
by Twarter369
I just bought a Oscilloscope!! 57 13459 September 16, 2011
by dgikuljot
Digital Multimeter will not show resistance! 12 1824 September 16, 2011
by bretm
Something fast and with a lot of memory... 5 969 September 16, 2011
by 6ofhalfdozen
595 Shift Array, BC337 Transistor and Solenoid 9 2275 September 14, 2011
by BobaMosfet
4 Transistor H-Bridge Fail 46 3767 September 10, 2011
by bretm
Nerdkit/Arduino with EL wire 34 3705 September 10, 2011
by Ralphxyz
Question about frequency and duty cycles on a multimeter 9 1166 September 01, 2011
by BobaMosfet
Dim LED 3 978 August 23, 2011
by Rocket_Man_Jeff
Embedding Multi-Core Processors 17 1153 August 23, 2011
by Twarter369
Easy Transistor Question 4 1386 August 20, 2011
by jimmyw404
Daisy chaining MC74MC595 Shift Registers 13 1907 August 18, 2011
by Ralphxyz
Building a coil?? 12 2049 August 12, 2011
by Ralphxyz
Programming the micro-controller 9 1223 July 26, 2011
by Rick_S
Advice needed for further projects with my nerdkit 3 1005 July 22, 2011
by codenamejupiterx
more questions about tempsensor.c code 4 818 July 22, 2011
by codenamejupiterx
tempsensor.c code question 3 811 July 22, 2011
by codenamejupiterx
Which way does electricity flow? Positive-to-Negative or Vice Versa? 5 6266 July 22, 2011
by rboggs10
Converting input signal for ADC, impedance matching? 7 1501 July 20, 2011
by BobaMosfet
my lcd went blank except a little line that looks like a cursor 2 1003 July 20, 2011
by codenamejupiterx
Temperature project unclear explanation of error in uncompiled code 5 998 July 20, 2011
by codenamejupiterx
make file errors on initialload.c 6 986 July 17, 2011
by Ralphxyz
Error: "Maybe it isn't a butterfly/AVR109 but a AVR910 device?" 3 2054 July 17, 2011
by codenamejupiterx
the make file cant locate the libnerdkits 3 995 July 17, 2011
by codenamejupiterx
avr macpack 3 935 July 16, 2011
by codenamejupiterx
acd with 2 inputs? 18 1131 July 14, 2011
by Ralphxyz
Electro-magnetism. Concept check. 14 1133 July 13, 2011
by BobaMosfet
Battery clip wires 3 923 July 10, 2011
by codenamejupiterx
Electronics advice needed 3 803 July 10, 2011
by codenamejupiterx
I cant get my lcd to work 5 845 July 10, 2011
by codenamejupiterx
2-ROW LCD Only Displaying 2 Rows of 8 dark blocks.... 3 1055 July 10, 2011
by gcharris
Help Please **** I can only use a 9v battrey sent by Nerdkits 35 1492 July 03, 2011
by wintersdb
Switching Ground with a transistor 12 4997 June 28, 2011
by dgikuljot
Powering I2C remote device? 3 1038 June 27, 2011
by Ralphxyz
rechargeable battery for project 2 1086 June 23, 2011
by BobaMosfet
TTL ULN2038 Question 40 2134 June 17, 2011
by Rick_S
Circuit board for monophonic signal generator 1 1282 June 15, 2011
by kayrock
4 Channel Voltage and Current Monitor 3 1181 June 15, 2011
by gcharris
"-U": The system could not find the file specified ERROR 6 1194 June 08, 2011
by pgdsmca
LCD Only showing 2 black Lines ????? 7 1314 June 06, 2011
by mja
A couple of questions 3 934 June 06, 2011
by Ralphxyz
How much should I strip? 3 940 June 01, 2011
by mongo
How do I interface a Parallel-In Serial Out Shift Register with my microcontroller? 8 1333 June 01, 2011
by hevans
Motor Control/MCU power bus 5 1057 May 30, 2011
by esoderberg
How do I use two Serial or Parallel-in/serial out shift registers together? 2 1356 May 29, 2011
by Rick_S
Digital Input Question 4 1039 May 28, 2011
by frankdwest
PCB arrived 20 1144 May 25, 2011
by Ralphxyz
Save state data to EEPROM with power cutoff capacitor value? 4 1527 May 24, 2011
by gcharris
Calculating bypass capacitor 6 5389 May 19, 2011
by Ralphxyz
What shift register should I buy? 4 1556 May 09, 2011
by Noter
IR current 6 1382 May 05, 2011
by missle3944
Turning on COmputer without Switch 39 1821 May 04, 2011
by hariharan
Heat sensors 21 1752 May 04, 2011
by Hexorg
error 1 2 1133 May 02, 2011
by hevans
Transistor vs mosfet 13 4202 May 01, 2011
by Noter
PCB trace width calculator 3 2005 April 24, 2011
by esoderberg
OLED display 10 1453 April 23, 2011
by Rick_S
Power Supplies 17 2390 April 22, 2011
by BobBolinger
LCD & battery&USB 4 928 April 22, 2011
by Ralphxyz
Amperage Multiplyer 6 1259 April 21, 2011
by Rick_S
ADC Theremin Help... 1 1036 April 20, 2011
by jasongillikin
RF and oscoliscope 2 1396 April 19, 2011
by mongo
Connecting to external control voltages 4 1228 April 19, 2011
by bretm
IR current question 7 1083 April 18, 2011
by BobaMosfet
What is the purpose of the resistor in this power supply? 4 1586 April 17, 2011
by rajabalu21
Not meeting input Voltage Threshold, amplify? and Do I need a buffer? (Button input, LED output) 14 1346 April 14, 2011
by bretm
USB cable issues (maybe fried) 7 1253 April 10, 2011
by uml_12
Basic projects 3 1179 April 09, 2011
by mongo
REFLOW oven 22 2683 April 07, 2011
by Rick_S
Why 5 volts is most widely used? 10 4482 April 07, 2011
by bretm
unexpected MCU rebooting 82 2431 April 05, 2011
by sask55
REFLOW Soldering 3 1448 April 05, 2011
by Ralphxyz
Setting baudrate for bluetooth connectivity 1 1302 March 31, 2011
by AbhishekBhat
Oscilation circuits 8 2658 March 30, 2011
by bretm
Black Display on LCD 6 1287 March 28, 2011
by Druidman
32kHz clock 2 1250 March 28, 2011
by Rick_S
Debouncing and External Interrupts 9 4298 March 27, 2011
by Mujda
Geiger Counter Schematic Help 3 4177 March 18, 2011
by mongo
Thermocouples, relays, and fun!!! 12 2158 March 16, 2011
by mongo
LCD problem 3 1218 March 08, 2011
by Ralphxyz
How do I determine the throw characteristics of a Relay 8 1731 March 08, 2011
by bretm
ATMega168 Microcontroller simple relay with timer examIple 3 1854 March 01, 2011
by Rick_S
Why does my LED light if i so much as get near the circuit 3 1216 February 26, 2011
by nckomodo
Using a 555 IC instead of a Crystal Oscillator? 6 2201 February 26, 2011
by Ralphxyz
Pushbutton on off code 3 1516 February 26, 2011
by amartinez
Why does my led light without the battery? 2 1708 February 26, 2011
by hevans
24 volt DC to 12 volt DC 6 4605 February 25, 2011
by JKITSON
How to Switch a Solenoid? 11 2930 February 23, 2011
by Ralphxyz
Farads and Capacitors 8 2364 February 23, 2011
by Ralphxyz
How much to switch a relay? 3 2826 February 19, 2011
by Lusitania
My first Impression 6 1364 February 16, 2011
by devinsbusiness
Understanding battery life 3 2147 February 16, 2011
by devinsbusiness
Power Supply for LED's 4 2145 February 13, 2011
by sask55
Using Devices With Different Voltages 11 1615 February 05, 2011
by BobaMosfet
High voltage lines 26 2540 February 02, 2011
by mongo
USB 3 1192 February 02, 2011
by Jalex
Ultrasonic thickness gauge with the NerdKit; interference form capacitance? 12 1723 February 02, 2011
by Jalex
Alternating LED circuit 4 1715 February 02, 2011
by Rick_S
Powering a Stepper Motor 5 2157 January 31, 2011
by il1019
Affordable oscilloscopes 43 7817 January 27, 2011
by BStory
"And"gate unfinished thought 2 1094 January 27, 2011
by Hexorg
replace MCU? 30 4807 January 26, 2011
by Jalex
Using a thermometer with the nerdkits microcontroller. 17 1602 January 25, 2011
by Ralphxyz
Multimeter! 12 3146 January 25, 2011
by Jalex
Generate a steady DC level from PWM signal 9 2096 January 25, 2011
by Jalex
My LED Cube so far 25 4946 January 24, 2011
by Keyster
what is a butterfly in hardwaring 3 1949 January 22, 2011
by Rick_S
USing Calculator as Keypad 5 1516 January 18, 2011
by dgikuljot
Counting 5 1012 January 18, 2011
by Jalex
How do I calculate the cutoff frequency...? 3 3464 January 17, 2011
by bretm
Programming 5 1542 January 14, 2011
by Ralphxyz
Induction loop actuator 7 1942 January 11, 2011
by Yourself
Begining 7 1678 January 09, 2011
by Jalex
Is Single-bit Memory Cell Diagram on Pg 14 Correct? 6 1962 January 09, 2011
by pacnwdude
uninterrupted power supply for NerdKit project 4 1809 January 09, 2011
by mrobbins
RFB12B ... what are all this terms? >_< 5 1141 January 09, 2011
by mrobbins
UART operating at 3.3V 1 1547 January 06, 2011
by Mujda
Data input voltage 6 1772 January 03, 2011
by Rick_S
MOSFET Question 7 1687 December 31, 2010
by Keyster
Transistor as a switch 5 1538 December 29, 2010
by Hexorg
Resistors 5 2013 December 28, 2010
by georgio
Problem with NPN Phototransistor 16 4652 December 28, 2010
by Ralphxyz
Problem with Voltage Regulator? 14 1551 December 28, 2010
by BobaMosfet
Relay ratings 2 1331 December 24, 2010
by mongo
Do LEDs need a series resistor to limit the current? 27 11055 December 19, 2010
by mongo
Safe, Easy and Inexpensive way to Control AC Power 3 1377 December 17, 2010
by mongo
Power Rectifier 7 1518 December 15, 2010
by Hexorg
Limitation of a battery on the NerdKit 18 2552 December 14, 2010
by danuke
This a decent oscilloscope? 8 1771 December 14, 2010
by danuke
Do resistors in series really add up? 8 2294 December 14, 2010
by danuke
Falstad circuit emulator in Java 1 1854 December 09, 2010
by bretm
L293 H-Bridge 15 2335 December 05, 2010
by devinsbusiness
Spark when using a flyback diode 3 2263 December 04, 2010
by Wheresmind
INA118 -- Instrumentation Amplifier 8 2554 December 02, 2010
by BobaMosfet
angular position sensors and multiplexing 9 1981 November 29, 2010
by d3adl0ck3
Solar cells in parallell, but no additional amperage 11 2144 November 24, 2010
by BobaMosfet
Op-amp not working 6 2182 November 24, 2010
by BobaMosfet
Python questions 4 2134 November 21, 2010
by tkopriva
CE Amp design 5 1413 November 12, 2010
by BobaMosfet
Is it possible to re-use parts from household appliances? 5 1757 November 05, 2010
by mongo
Confirming MCU clock is functioning 8 1387 November 05, 2010
by Mujda
PC4 not working?! 8 1094 November 04, 2010
by hapshetsut
Amplifiers 4 1397 October 30, 2010
by Ralphxyz
supplying power and controlling 12V motors/fans 3 1933 October 12, 2010
by JerseyGun
Transistors Versus Diodes 4 2092 October 04, 2010
by Scythium
radio interference from NerdKit 11 1375 September 27, 2010
by Rob56
USB cable and Bluetooth dongle ... 9 3325 September 14, 2010
by Ralphxyz
solar project with light sensors 7 1900 September 11, 2010
by akajester
QFP and dreadboard 2 1586 September 02, 2010
by bretm
Getting power to the spinning part... 5 1766 August 31, 2010
by Hexorg
Need help with electronics using a op-amp 21 4932 August 30, 2010
by Ralphxyz
morse code decoder 2 2063 August 26, 2010
by jonathan_m
Connecting to Computer 3 1864 August 25, 2010
by awesome
555 astable on breadboard 12 2922 August 22, 2010
by mongo
Digital Sound Recording System Need Help!! 1 1406 August 20, 2010
by xc2rx
Use 4 digit LED display using fewest possible outputs 2 1853 August 19, 2010
by hevans
mosfet 3 1425 August 13, 2010
by hevans
Good material on learning electronics. 8 1542 August 11, 2010
by TexanBackpacker
MCU Clock Implementation 2 1252 August 06, 2010
by Rick_S
Servo causes MCU to reset 4 1981 August 02, 2010
by mrobbins
More batteries = more voltage? 3 1959 July 23, 2010
by mongo
Building a motor driver/ESC for AC motor. 10 3956 July 09, 2010
by Ralphxyz
Using LM741 amp in the Piezoelectric Sound Meter Project 7 2336 July 02, 2010
by mongo
Electro Cardio Gram 4 1970 June 21, 2010
by Ralphxyz
How do I read very low voltages with the Nerdkit please? (0 to 20.0 mV) 3 1339 June 12, 2010
by Wobbler
Voltage Regulator 20 2322 June 10, 2010
by Ralphxyz
Converting Battery power to Wall Plug-in... 2 2443 June 09, 2010
by mongo
Bipolar and MOSFET transistors 3 2336 June 09, 2010
by CyberGod
high side mosfet led multiplexing 5 2343 June 07, 2010
by gnkarn
tempsensor, LM34DZ, specs. 4 1668 June 07, 2010
by BobaMosfet
Some questions (temp sensor + button) 4 1269 June 06, 2010
by Kafke
TSSOP IC! 4 1681 June 03, 2010
by mrobbins
AVcc 2 2025 May 31, 2010
by hevans
Serial Comm. vs. Clock frequency 2 1516 May 31, 2010
by hevans
Cable Driver 2 1264 May 31, 2010
by mongo
Best 9V adapter to use 2 1495 May 28, 2010
by mongo
Unidirectional microphones 5 1707 May 27, 2010
by mongo
Servo question 3 1430 May 27, 2010
by Rick_S
Understanding the clock rate and the crystal 4 1697 May 27, 2010
by hevans
Generic 120VAC adapters (transformers) 7 1477 May 27, 2010
by DavidinLA
p-channel mosfet not turning off. 3 2284 May 23, 2010
by gnkarn
Getting my head around MOSFET's 9 4059 May 21, 2010
by hevans
Chinese Solenoid 15 1599 May 10, 2010
by treymd
avrisp mkii circuit 4 2611 May 09, 2010
by BobaMosfet
4 to 16 decoder 4 1540 May 09, 2010
by mongo
Powering Nerdkit using Super Capacitor 5 3214 May 07, 2010
by rajabalu21
Simple Power Switch 6 1247 May 05, 2010
by avicell
I can haz speed! 3 1500 April 27, 2010
by Hexorg
LCD backlight control via MCU 5 2528 April 27, 2010
by mjswan
Temperature sensor and buzzer 2 2116 April 21, 2010
by bretm
Help with choosing the right resistor 10 2317 April 18, 2010
by Farmerjoecoledge
Electric field in a resistor 6 2956 April 15, 2010
by bretm
Resistor 4 1276 April 15, 2010
by mongo
MCU digital input pins 3 1156 April 15, 2010
by CyberGod
The Complete Electronics Guide 1 1706 April 09, 2010
by Shanytc
usbasp ISP Programmer 7 5586 April 04, 2010
by ese
Fun with capacitors! (And a question or 2) 4 3040 March 28, 2010
by carlhako
Laptop ground safety question 3 1656 March 27, 2010
by ese
LM34 R-C Damper 5 1874 March 24, 2010
by BobaMosfet
NerdKits & USB 5 1689 March 23, 2010
by treymd
Jumpers/headers on the cheap 1 1337 March 23, 2010
by treymd
Stepper Motor - Stepping Stone 19 2657 March 23, 2010
by ese
constant system reset 3 1251 March 23, 2010
by treymd
Cheap Components (If you're willign to wait) 5 1566 March 22, 2010
by Phrank916
When powering an inverter, my LCD becomes blank 32 2281 March 17, 2010
by mongo
Another adventure with usbasp ISP - No signal on MISO? 3 2055 March 17, 2010
by Frozenlock
What is -VS? 6 1856 March 17, 2010
by Ralphxyz
Free MIT lectures! 1 3049 March 04, 2010
by treymd
Using MCU to connect two wires 3 1677 March 03, 2010
by nrotstan
Why no Capacitors used on Oscillator? 15 4118 March 02, 2010
by Chaosrider
Found part, but don't know if I can use it 3 1485 March 02, 2010
by Solorbob
Deciphering power resistors 11 1602 March 01, 2010
by BobaMosfet
Quick mosfet question -- grounding other battery? 3 1474 March 01, 2010
by nrotstan
Understanding LEDs 16 2745 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 6083 February 23, 2010
by rajabalu21
Too much power? 14 2056 February 23, 2010
by BobaMosfet
5v to 3v using nerdkit parts? 16 2623 February 21, 2010
by peabo
Why is the crystal connected to GND in every schematics, but not in the NerdKit? 7 1837 February 20, 2010
by BobaMosfet
Piezo over-voltage 15 5054 February 18, 2010
by Rick_S
Serial port interface circuit 2 2288 February 17, 2010
by mongo
OBDII project 3 1543 February 17, 2010
by Mike
Voltage Divider, Do the resistors heat up? 9 2597 February 16, 2010
by treymd
usbasp ISP Programmer - MCU getting HOT! 17 3045 February 13, 2010
by BobaMosfet
Digital pots 5 1563 January 31, 2010
by sepeters
Problem with power from 8.6V wallwort - Help! 14 1695 January 25, 2010
by sepeters
YAWWT (Yet Another Wall Wart Thread) 10 2577 January 23, 2010
by treymd
How to stop a flip flop counter from... hum.... counting? 4 2187 January 19, 2010
by mongo
Anyone heard of this Budget Soldering Station? 5 3030 January 15, 2010
by Phrank916
Resistors and Ohms Law / Kirchoff's Laws 2 1811 January 09, 2010
by Rick_S
Power a piezo with a ceramic resonator 10 2776 January 08, 2010
by mrobbins
Using Piezzo Buzzer to produce Ultrasound? 4 4364 January 02, 2010
by toric5
Pin14 ..Malfuntion 25 2110 January 01, 2010
by Farmerjoecoledge
Run from USB? 3 1628 December 27, 2009
by jgauthier
Servo Signal Noise 2 1353 December 24, 2009
by BobaMosfet
MOSFET Problem on Constant current source 9 3500 December 21, 2009
by BobaMosfet
How to Buy a MultiMeter-- Lesson Learned 8 5950 December 10, 2009
by georgio
Relays and transistors 12 5305 December 09, 2009
by BobaMosfet
Continuity or just plain connect? 16 4022 December 09, 2009
by Rick_S
IR Detector 7 2548 November 23, 2009
by mrobbins
14.7465 to 20.0000 mhz 10 2166 November 19, 2009
by mikedoug
Debug with lcd 6 1976 November 16, 2009
by Farmerjoecoledge
ATMega328p processor 2 1942 November 15, 2009
by tech20
Understanding output pin characteristics 4 1589 November 13, 2009
by mrobbins
Schematics for LED Heart Project? 12 3211 November 12, 2009
by mikedoug
Current draw observations - driving LEDs with PINs 6 1884 November 07, 2009
by rusirius
How do you wire a transistor (2N7000 or 2N3904) 7 24307 October 30, 2009
by BobaMosfet
DIY header unit 2 2190 October 10, 2009
by rusirius
Thermostat Logging 6 2478 October 09, 2009
by luke
Understanding transistors 6 3001 October 08, 2009
by mikedoug
Power from USB: current limiter with an op-amp 8 5954 October 07, 2009
by mikedoug
Currant booster 3 1418 October 07, 2009
by Farmerjoecoledge
Witch two wires 5 2036 September 11, 2009
by mrobbins
Difference between ATmega8 and ATmega168? 4 5365 August 27, 2009
by hevans
Which LED? 14 2042 August 10, 2009
by BobaMosfet
Evil battery polarity +/- understanding the basics 7 2747 August 07, 2009
by mongo
pull up, pull down resistors 7 12385 August 05, 2009
by wayward
Why do we need a resistor going from the contrast pin to the ground? 8 5434 August 05, 2009
by BobaMosfet
Current vs Voltage on a circuit 17 3374 August 05, 2009
by BobaMosfet
Power MOSFET - Understanding and headaches 4 2966 July 07, 2009
by sector0
Reset switch for circuit 3 1860 June 27, 2009
by sector0
Online circuit simulator/intuition builder 2 24097 June 16, 2009
by TBNK
I don't understand the cap on the MC power supply 12 2091 June 12, 2009
by luisgarciaalanis
what resistors to use when connecting a new IC 5 1915 June 01, 2009
by luisgarciaalanis
wallwart safety? 4 1918 May 31, 2009
by luisgarciaalanis
Tired of draining 9V batteries? Cheap and easy to set up Lab DC Power Supply 2 2480 May 31, 2009
by luisgarciaalanis
Dimming LCD Problem 6 1814 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...