Micro Transceivers

Some years ago my university employees had trashed away some brand new stuff, included these micro ethernet tranceivers. I'm unacquainted regarding this equipment... does someone have some information about those specific models, and especially some idea about how to utilize them in a diy project? How they works? Thanks!

Question by andrea biffi   |  last reply


micro motion

I all of a sudden got into beam bots as a project to do when I'm bored, anyways what's the smallest device to get motion? THe device also can't be power hungry. would muscle wire work? how many amps do they take? does anybody know how to wind their own micro solenoids?

Topic by guyfrom7up   |  last reply


micro electronics

Basic of this post is where e to buy micro size electronics for micro flying drones which are insect size? I asked arduino and raspberry pi, no answer yet.  in this post : https://www.instructables.com/id/3D-Printed-Ornithopter-Micro-UAV-Drone/     there is electromotor which OP claim that was used also by inventor of little flying drone...regarding arduino uno board i am not sure that was really used by inventor, please see pictures and videos on youtube....so if someone knows please post where to buy such micro size electronics. Thank you  

Topic by ruma29   |  last reply


Micro High Voltage

I'm going to attempt to make a super micro tesla coil that is 100% contained (unless it runs off of like 12 volts dc, then I'll use a wallwart). Of course, one of the i biggest problem is the power supply. So this is what I'm asking, what's the best way of ramping up the voltage? A tiny toroid transformer? An inductor that gets pulsed? Voltage Multiplier? Something with static electricity? Some type of Inverter? Using Greinacher Cascades? A marx generator hybrid? Other stuff I havn't heard of?

Topic by guyfrom7up   |  last reply


Micro sd card

I bought this micro sd card from best buy for my phone. it was supposed to be a 4gb card while the only space is one tenth of a mb, is there any way for me to fix this. the card is the one on the right

Question by wamj   |  last reply


Micro Mosquito Mods ??

Ok so i have a micro mosquito and I finally got the repair kit for it (I crashed and burned hard.... broke a rotor) I love the little thing.....very fun to kill 15 minutes with... I've done some looking and I've come up with a few ideas on how to increase power in the tail rotor and make it a little bigger....to hopefully make forward and reverse flight a little faster.... if I am succesful is there an interest in this? would it be wanted as an instructable? also... I realize its not a load bearing helicopter..... but any ideas on ultra light cameras I could try out?

Topic by chaoscampbell   |  last reply


Micro Controler Help? Answered

Hello, I just got a micro controler IC (i think), just the chip, and I want to know what I can do with it. The text on the chip reads as follows: 7CYA5KK G4 M430F4260 REV A It was a free sample I picked up so it didnt cost me anything, and its from texas instruments. Any cool projects or ideas would be great! Thanks!

Question by TXTCLA55   |  last reply


Micro XP computer?

I want to make or buy a small, single board computer similar to gumstix, capable of running tinyxp. if this is possible, can i make it run a single .exe program at boot, when a command is entered?

Question by ten77 


micro servo controlling?

hai guys, i have a micro servo motor . i planed to do hobby project with it . can any one guide me to make the servo turn around.  

Question by spicesharma   |  last reply


Micro sstc trouble Answered

I am trying to build the micro sstc by steve ward. My circuit  behaves like there is a short somewhere, but I checked  all the connections. The mosfet isn't connected yet and the 555 timer is getting hot, any ideeas?

Question by theVader75   |  last reply


Micro controller help

Hi everyone, I'm looking to get into the world of micro controllers but I have no clue how to decide on which one to start with. I have experience programming in VB on almost a daily basis and a class or two a few years ago in Java and C++. I don't anticipate programming being a hurdle. My main goal is to work with using my Android phone to automate certain parts of my life, such as automatically turning off the lights in the house and killing power to devices in "stand by" mode. I see a few books about the ease of combining arduino with android, but the reviews all state that the books assume proficiency in one or the other, meaning it's either targeted to an android programmer who wants to dabble with the arduino or someone who has micro controller knowledge who wants to incorporate the android. I have neither and need something basic for both. Something that starts from the very beginning. How the two connect. How they talk. Are their standard libraries and objects that they use? things like that. This is less a question/answer and more something I'd like to have some discussion on. Feel free to ask any questions if I missed anything. Thanks in advance.

Topic by TheShabz   |  last reply


regarding the use of ATtiny microcontroller?

hi.i am new to the world of microcontrollers..i want to use a attiny microcontroller for my project.but i have no idea about it in terms of the usage,availability,programming...please help me with it......

Question by ishaan_kakar   |  last reply


programming the micro controller ic

I want to built my own orbot but dont know to programm the micro controller. in which language it can be done? is micro controller ic and micro pc ic are same?

Question by paragjh284   |  last reply


are there any micro speaker.. by micro i mean like 5/32 of an inch big..they need to be decently loud?

I am working on a very slim bluetooth watch and i need extremely small loud speakers.even smaller than an ear buds diameter

Question by Pinion Props   |  last reply


Let me know I need to create one micro mouse and programming? Please Help!!!!!

I want to create a micro mouse and programming, and can not find how to do it.I have 1 arduino Uno, IR Beacon Transceiver and two motors.I wonder if I need something more???. As I program the micro mouse???. If you can help me, I'd appreciate. Thanks  

Question by Jesma_1992   |  last reply


Need help with this MICRO camera ...?

Hello ... I would like to kindly ask anyone, that is good in electronics for help. I add 3 pictures of the SPY PEN and my questions are about the small camera(JH 70-B). I would like to make this camera to make VIDEO via a cable (not to write it on memory) ... but just by a (RCA) cable so I can use any recorder I would like. I have a few questions, that are bothering my mind and I can't help my self :( 1. would the camera be able to give video signal by it self or does it need some part of the PCB board ??? ... (I mean ... if I would give + and - to some of those pins ... and find one pin, that would give the video signal) 2. If I need the part of the PCB board ... could you show me, where would be the VIDEO signal ??? And where would be +/- ??? In my (totally amateur) opinion, I think, I will need a part of the PCB ... but I don't know, which of all these components are part of the "camera"to give video signal. Thanks for any advise ... zholy

Question by zholy   |  last reply


8-bit micro controler

Ok, so i took apart a old lcd monitor and found a w78e65p-40 microcontroler unit in it. i have no idea how to use it and whit not, and it just slides out a holder, so it can be put back in. again no idea how to use it, but this site may be of help to describe it http://www.8052.com/codelib/w78e65.pdf

Topic by killmore231 


Dremel Micro Repair/Reuse

Recently at the end of 2016, I acquired a Dremel Micro cordless rotary tool from a garage sale/yard sale for about $20. I used it maybe 3 - 4 times until it didn't want to hold a charge for long. Basically when I put it on the charger, the LEDs scroll top/down indicating it is charging but after a minute or two they stop their normal scrolling sequence and they all stay lit up, which isn't even mentioned of in the manual. The fuel gauge battery indicator shows up red meaning it's near its battery life. At this point, I'm considering either to salvage the motor or buy a new battery for the dremel (which are 2 Sanyo 14650 batteries that are soldered onto a circuit board inside). I'm just wondering is there something that I have failed to do that would make the dremel not hold a charge? Thanks in advance!

Topic by TXVisual   |  last reply


I am trying to use a transistor to switch a 12v relay ? Answered

I am using a micro controller to switch a transistor which will then switch on a relay. I have heard that you need a resistor in between the output pin and the base of the transistor. Why is this and how do you calculate what size. Also the micro controller is running off a 12 battery which is regulated down to 5 volts for the controller. Can a transistor use a 5 volt source to active the base and then have 12 volts running through it activating the coil on the relay. I apologise for my poor electronics knowledge.

Question by legend4930   |  last reply


how to remove "write protection" from from Mico SD card with adapter?

I have a micro SD card with adapter, however I can not add files or format using my PC due to write protection. Downloading large video & music files & even some .pdf files has become very long & tedious. Appreciate any knowlege & tiem you cold spare for this Robert

Question by roberob141271   |  last reply


is the ps2 connected mouse's microcontroller programmable ? Answered

I heard that the ps-2 connected mouse has a microcontroller , is that true? and if it's true is it programmable?

Question by top.boy   |  last reply


How to scale a micro ammeter?

I need to measure the current of a Tesla coils secondary output and have found that it is under 1mA and above 50uA so how can I scale a 50uA DC micro ammeter or a DC milliammeter (can't remember its range) to the appropriate range?

Question by The MadScientist   |  last reply



How To Use Micro Controllers? Answered

I want to start making robots using micro controllers, and I want to know how to use tham, where to buy everything you need for them, and how they hook up and everything in that nature.

Question by ~•SMART•~   |  last reply


Sandisk cruzer micro (2gb)

Well, my flashdrive just quit on me and I was wondering if this happend to anybody else. It does not light up or anything when I plug it in, anybody have any advice?

Topic by bwpatton1   |  last reply


8 bit port in verilog ?

Hello members I want to make port for microcontroller in verilog code I want to write verilog code for 8 bit port module port (data_in,data_out ) input[7:0] data_in; output[7:0]data_out; wire [7:0]data_out; endmodule I think its not enough tell me what I do to make port in verilog I did google but I did not  find success        

Question by vead 


How to start with AT89S52 MC?

I am new to embedded systems of 8051. i coded At89s52 and dumped my code for blinking LED. when i trying to get out put from a bread board no result dont know where i m doing wrong i m sure with connection fittings and circuit exactly matches with what ever available in internet. i have doubt on my crystal and 22pf capacitors and how to check them...?   can any one help me on this ..

Question by Vijaykum_ar   |  last reply


Micro drone construction help

For a school project a partner and I are attempting to build a self controlling quadcopter. It should be able to use a specific input from a photo transistor and the be able to navigate on its own. The only problems that I can see running into at the moment are finding an atmega compatible rotor controller, and that not including the propellers it is going to be under two inches (5.08 cm). I would appreciate any assistance possible in finding a motor controller of this size, and will keep this post up to date with our project.

Topic by Kaptia Teramo 


Help with ST72F324 micro controller?

I need to read the software program from this chip used in control equipment . The original manufacturer is no longer in business but issued a software update before going under. I have an updated control board and if it's not code protected I can then update other equipment still currently in service. I don't want to spend to much as I'm not sure if it's readable? The control board has a 10 way programming IDC socket on board to allow software updates... so I just need to link to this by the simplest / easiest method possible.

Question by appolo   |  last reply


Salvaged smd micro controlers.

Hello everyone, i just salvaged some great finds i think i have a surface mount PIC16F72-1/SO and a PIC16F877A, plus a few other componets. i am wondering what do i need to be able to program and use these PIC's i have very limited knowledge on micro controlers, i am currently learning with the Arduino UNO. and help would be appreciated. and also i have salvaged some other parts kia324f "quad amp" will this work like the more commonly used op amp's i see in other instructables, ATMEL346 not sure what i can use this for. i have more parts that i am unsure of what if anything i can use them for but i dont want to bother everyone with my list =) ill try and post them a little at a time. and agian thank you in advance for your information.

Topic by omnacron   |  last reply


micro camera for Rc planes

If been wanting to film some of my Rc flights iv been thinking of two ways to do this: A.) buy a mini camera (not wireless could cause interference with other planes or mine although it should only affect 2.4GHZ or spreed spectrum channels which are designed to handle this kind of interference but i dont want to cause any accidents) or B.) Buy a cheep digital camera and mount it to plane Things to consider:Any thing will add weight to the plane which will affect balance (to solve this add weight till balance)I want to avoid wireless. How to power; battery's weight a lot and take up lots of spaceDragSize of cameraIf i do use micro camera where will it record too?Dose any one have any suggestions or ideas on the best way to do this on the cheep?*update* i found a Camera called the flip video camera it has every thing iv been looking for its cheep about 150$, has a tripod mount, records 60 min of video, comes with editing software, runs on 2 AA batteries, and has a small (1.5inch) Lcd screen

Topic by i make shooting things   |  last reply


micro camera for Rc planes

If been wanting to film some of my Rc flights iv been thinking of two ways to do this: A.) buy a mini camera (not wireless could cause interference with other planes or mine although it should only affect 2.4GHZ or spreed spectrum channels which are designed to handle this kind of interference but i dont want to cause any accidents) or B.) Buy a cheep digital camera and mount it to plane Things to consider:Any thing will add weight to the plane which will affect balance (to solve this add weight till balance)I want to avoid wireless. How to power; battery's weight a lot and take up lots of spaceDragSize of cameraIf i do use micro camera where will it record too?Dose any one have any suggestions or ideas on the best way to do this on the cheep?Original form (it was origanaly posted in that group but it got separated) *update* i found a Camera called the flip video camera it has every thing iv been looking for its cheep about 150$, has a tripod mount, records 60 min of video, comes with editing software, runs on 2 AA batteries, and has a small (1.5inch) Lcd screen

Topic by i make shooting things   |  last reply


Controlling a servo with a Micro-controller?

So I decided to spend some time to make a "gimbal" in a very loose sense. Basically I was experimenting using a square wave oscillator to generate the correct PWM to have a servo rotate between 0 and 180 degrees when a tilt sensor is tripped. After some research multiple sites said having a 1ms pulse every 20ms would have it move to the 0 degree position. Great so I will make a oscillator pulses ~1ms on one side and 19ms on the other. However this does not seem to be working. I am curious if it is a fault in my math or if the tolerance on the parts I am using are just too wide to be any good. Here is a diagram of my set-up with the values a came up with. One spot that may be weak is that I just notice someone somewhere mentioned using 50Hz for the timing I just used that number when I calc my figures. Any feedback?  Also a side note is that I have been able to move the servo in one direction only and by accident ( in fact it's what inspired this project) when C1 & C2 were 2.2nF and the R1 & R2 were 10k potentiometers that I turned until something happened. Now that I am trying on purpose no results. 

Question by Jayccob   |  last reply


Mini/Micro Game System

Hi guys, I've been thinking. Really thinking. I recently found my Digispark (if you dont know what those are, google digistump, click on the first link and go to products, Digispark. They're really cool.) and decided to put it to use. I have always wanted to have/build something like a micro gaming system (sort of like the ben nanonote (if you don't what that is, google it, its really cool)) and decided that as a challenge, I could try implementing the Digispark as the Processor. I know that I wouldn't be able to run any games more advanced than pong, breakout or snake, but even those kinds of games would be enough to keep me interested while in boring situations. My basic thinking is this: There would a small lithium-ion rechargeable battery on the bottom to be a base (but still removable), the Digispark without any headers above the batteries, and a small LCD screen (1.8, 2 or 1.3 inch screen size) that would have either two pushbuttons (one on either side of the screen) or four pushbuttons configured in a D-pad style on the right side of the screen (how many buttons it would have depends on how many pins the Digispark would have open (if any), which also leads to my question, does anybody know any place to get video LCD screens (don't care if its color or not) that only take up 4 or less pins? I know that probably seems absurd, but if anybody knows any places to get them, please let me know. And just one last thing, is it possible to program games in the arduino IDE? Are there libraries for them? ANd if you can program games, just how advanced can you go?

Topic by MrDubstepWarMachine   |  last reply


how to make micro ear gear?

Can u tell me how to make a tiny micro ear gear like which u see in a Hollywood movie ( national Treasure). can me make that kind of mini ear gear which fit perfect in our ear hole? if any one know this plz tell me how to make it and what are the things necessary for that.

Question by jijin   |  last reply


how do you make a knex micro coaster?

Knex coaster question

Question by blakecanmakestuff   |  last reply


How to connect a garage door photo eye to a micro?

I am looking at hooking up an old photo eye from a garage door to a micro. The end use will be in a device to detect if my dog is about to jump over the fence and take a picture as well as play some audio of me telling him to get down. The problem is that I don't know the correct way to connect the photo eye to the micro. I believe the transmitter site should be powered with 12V, but I would rather know for sure before frying the sensor. My garage door opener doesn't have a port for the photo eyes, so I can't check the outputs on it, but I was hoping someone here might already know, or might investigate their own open. Thanks for any help.

Question by DavidF81   |  last reply


can i ground pin 4 on a usb micro to make a cable compatible?

Some of the usb micro cables i have for my solar cell battery don't work, but when i plug in the usb female adapter and use the usb cable i use for my computer, my droid x charges just fine. being the way i am, i had to know what was going on, so i got an old bluetooth headset and desoldered the female usb micro plug and put some leads on it. then i plugged the cables in and tested continuity and i found out that the cable that works had pin 4 connected to pin 5, but the one that didn't work had no internal connections at all. i find the position the cable sticks out when it's plugged in kind of annoying, so i might be able to kill 2 birds with one stone by making a small extender with pins 4 and 5 connected and just leaving the extender connected all the time or would my dx detect that pin 4 and 5 are connected without a voltage and cause problems? i would really like to just make this, plug it in, and not have to worry about cables not working or getting in the way, but i don't want to test this on my $600 device when i don't know what might go wrong.

Question by the judge   |  last reply


What is an Arduino? Answered

I see a lot of instructables in witch they use arduino but I can't figure out what it is! can you help me?

Question by Patented   |  last reply


My key chain Video Recorder Doesn't Record video! only audio and takes snap shots!! can some one please help me!!? Answered

Hi every one i bought a key-chain video recorder for my micro twister! it arrived today....i tried recording video......but it didn't record any it only took pictures and recorded audio!! can some one please help me !! to make it record video!!

Question by kk khrab   |  last reply


sensors microcontrollers

Hiya guys is there anyone that can guide me to finding an instructable that deals with interaction in remote places using a micro-controller. For instance people in 2 different locations in the world, want to engage or enhance social bond or interaction by using a motion or proximity sensor and internet of things for instance triggering a sound or an led light that can be sensed in a remote location. So one location motion is detected and the other location this detection can also be seen, if that makes sense? For instance similar to this kind of project  http://goodnightlamp.com/ Could this be done? Thanks

Topic by Snowcoat   |  last reply


I have tried everything and it still says my disk is write protected what do i do? Should i just throw my card away? ugh

I've been to so many websites and they all say to do the same thing..I've moved the lock button, I've put tape on it nothing is working! Please tell me what i can do to get this stupid write protection off of my 8gb micro sd card....i will greatly appreciate it.

Question by Erann123   |  last reply


Quad Copter LED Controller? Answered

I have four different colored flexible LED strips on the bottom of my copter.  Presently, my only option is on or off.  I would like to make them flash or do something different.  On each LED strip there are 9 lights and also resistors.  These are the type of led strips that can be cut if necessary.  I know I could go and buy a micro controller but I'd like to try and make something if it's simple and not to expensive.  The power will come from onboard lipo battery.  Any thoughts or suggestions are greatly appreciated. Thanks in advance, Darrel

Question by dsaper   |  last reply


Adafruits serial programmer help needed

For anyone that owns the serial port programmer, I need help. Where the plug is (cable plug to the micro circuit) What pins are what? the row thats o o-o-o-o- (1 alone, 4 connected) is the + - - - - - right? and whats miso and mosi then? Help! D:I don't under stand on the 10 pin clip, what the heck is what. The sites diagram says theres 9 circus, 1 square. well, theres 10 squares!! It also shows near the plus side, the other 4 pins are ground. well, that means the MOSI,(NC)RESET,SCK, and MISO are all connected. Dont think so.For people who have the circuithttp://img402.imageshack.us/my.php?image=picture435mw5.jpgIt be nice if u can label the 10 pins for me, thanks

Topic by Killa-X   |  last reply


Windbelt, Cheap Generator Alternative, Set to Power Third World

Working in Haiti, Shawn Frayne, a 28-year-old inventor based in Mountain View, Calif., saw the need for small-scale wind power to juice LED lamps and radios in the homes of the poor. Conventional wind turbines don't scale down well -- there's too much friction in the gearbox and other components. "With rotary power, there's nothing out there that generates under 50 watts," Frayne says. So he took a new tack, studying the way vibrations caused by the wind led to the collapse in 1940 of Washington's Tacoma Narrows Bridge (aka Galloping Gertie).Frayne's device, which he calls a Windbelt, is a taut membrane fitted with a pair of magnets that oscillate between metal coils. Prototypes have generated 40 milliwatts in 10-mph slivers of wind, making his device 10 to 30 times as efficient as the best microturbines. Frayne envisions the Windbelt costing a few dollars and replacing kerosene lamps in Haitian homes. "Kerosene is smoky and it's a fire hazard," says Peter Haas, founder of the Appropriate Infrastructure Development Group, which helps people in developing countries to get environmentally sound access to clean water, sanitation and energy. "If Shawn's innovation breaks, locals can fix it. If a solar panel breaks, the family is out a panel."'Frayne hopes to help fund third-world distribution of his Windbelt with revenue from first-world applications -- such as replacing the batteries used to power temperature and humidity sensors in buildings. "œThere's not a huge amount of innovation being done for people making $2 to $4 per day," Haas says. "Shawn's work is definitely needed.'http://www.popularmechanics.com/technology/industry/4224763.html?series=37

Topic by ewilhelm   |  last reply


With micro SD card in tablet how do I access its contents?

I put a micro SD card in my next book 8 tablet  how do I get it to activate to view pictures on it??? There is no icon for that or any instructions from mfg.?

Question by William MB   |  last reply


Solar specification for Micro RC Car?

I want to develop micro solar rc car, but I'm confused about Volts and mA on the solar panel.The micro rc car recharge through the remote control and the remote control use 3V (Two AA batteries). So, what Solar panel volts and mA should I use? Thanks?

Question by ample   |  last reply


soft serial communication on Arduino Micro.

Hello all, I have a few Arduino Micro units, and need to connect them together (in a mesh network) so that every unit in it is interchangeable, meaning that any unit may be in connection with more than one unit. As the Master/Slave form is out of question at this stage (because any given unit cannot be both Master and Slave at the same time, of course) I decided to go for a simple serial communication. However the Arduino Micro units (and frankly none of the Arduinos) do not have sufficient serial pins and I was advised to use Soft Serial instead. I was looking into the pin out of the Arduino Micro but cannot quite figure out which pins I can use for the serial comm.; I need 4 to 6 serial communications. Any help is much appreciated, as the nature of the problem may not be changed. So I need to solve it as it is. Karim.

Topic by karimskarim   |  last reply


Good place to start for electronics? Answered

I would like to start doing circuits and things with micro chips and electronic components. Any one know a good place to start?

Question by Adum24   |  last reply


Is it possible to use a 4017 ic to controll a bipolar stepper? Answered

I want to build a robot. i have got two bipolar stepper motors but my micro is 2 outputs short of enoght so i was woundering if i could use a 4017 taking a pulse from the micro then driving transistors on the outputs connected to the stepper.

Question by terrapinlogo   |  last reply