MODI: Create Anything You Want with Robotics of Things

Hi, MODI is our new product. For easy understanding about our product, MODI is an easy version of Arduino. You can just connect modules with a magnetic connector. In addition, we provide a coding software tool to make a complex movement, so it is available to make IOT devices, DIY, and toys. Can check on Kickstarter page  Thanks

Posted by luxrobo 1 year ago


Build a 3v Relay Module

Would love a 3v relay module that can be drive by PIRs that output 3v signal.  Thought I finally found what I needed on Ebay, but discovered this is a bogus product that actually needs 5v to be driven.  http://www.ebay.com/itm/5PCS-3V-3-3V-Relay-High-Level-Driver-Module-optocouple-Relay-Module-for-Arduino-/331413255692?hash=item4d29c4f60c:g:6koAAOSwfcVUDuEJ Buyer Beware. Advertised relay PCB as 3v relay. While the relay on the board may trigger independently with only 3 volts, the circuitry of the board demands a higher voltage to trigger the relay. Relay PCB has a EL817 opto-coupler for the input signal, it requires a 5V drive voltage on the Input in order to drive the onboard transistor which controls the relay coil current. With only a 3v drive, there is insufficient current to drive the opto and transistor. The module that the relay is mounted to is falsely advertised as 3.0V because the components on the board need more than 3 volts. In order to drive this relay with a 3v signal device, voltage level shifting needs to take place between 3v device and relay PCB.

Posted by DiyWaterDog 2 years ago


Laser Module Time

So I ruined my second laser diode in a row, and I am just sick of trying to solder on to these tiny leads. I get these things off ebay, and I think they just scavenge them out of broken Bluray burners or something, because the leads on them are tiiiiny. So instead, I think I will just buy a laser module. I found a pretty good 250mw blue one on ebay for 53 bucks. Does anybody know a dedicated hobby website though? One that might have better prices? I don't need a laser pointer, because I already have my own circuit set up and stuff. Any thoughts?

Posted by thedonquixotic 7 years ago


OTP One Time Programme

Could any one point me in the direction to purchase greeting card sound module any and all info appreciated. Kevare

Posted by kevare 9 years ago


Laser pointer diode

I was making a laser trip wire, but I was looking online for diodes which I found, by which one would be best to get, I dont care for the color, in fact I am better off with red and the intensity can not put off heat to harm anyone. Anyone have any laser diode recommendations or have a site that I can buy them from?

Posted by bprins 6 years ago


how to build video recording module

How to build video recording module

Posted by kmohan 6 years ago


4-DCMotor Driver

Please help me to connect 4-DC-Motor-Driver-Module to arduino thank you

Posted by alisoud 1 year ago


Wanted: 9 volt light sensor module

Calling all you that know and enjoy making circuits. Here is my problem.  This is too bulky of a solution with a relay switch and 12v battery pack. https://www.instructables.com/id/DC-Low-Voltage-LIght-Sensor-Switch/ What I would like is a 9 volt input and 9 volt output.  Actually, whatever the input should equal output.  So if I connect 3 v battery, I want 3 v output.  Right now I need 9 volt in = 9 volt out.  No Relays!!!  Simple and clean circuit board only. The LED can't be soldered to the board.  I need the capability of extending from the board with wire to adapt to my needed projects. On another note, if you know of something already on the market, please send a link.  I will be happy to make the purchase. OH... no modules that need a microcontroller.  Need a stand alone module. Thanks! Looking forward to hearing back soon. The Water Dog

Posted by DiyWaterDog 1 year ago


wireless electronic device

I am looking to build a device that can communicate with a phone and through that phone you could turn on or off a light or a siren with fairly long range 20 to 30 meters (60 to 90 feet). Would anyone be able to help regarding this device. I am looking for it be as small as possible. also i wanted this device to run with fairly low voltage dc power source. please help with this  thanks

Posted by sam501 5 years ago


Problems with Laser Module Diode

So I have a 5mw laser diode module that I am trying to get open so that I can install a 250 mw diode in its place. Problem is, the diode won't come out, the manufacturer glued it in, and I keep buying new modules from different sellers only to find inexplicably the stupid diode backing slathered in glue. Is there a way of getting this thing out? I don't care if the diode is broken, I don't need it, but I want the driver intact.

Posted by thedonquixotic 7 years ago


Custom Built LED Module for Your PC

Have you ever been interested in having one of those neat computers that are lighted inside, but don't want to pay for an expensive computer. Now you can get a lighting module for your PC for as little as ten dollars. I am building LED modules for users to integrate into their PCs. The standard ones have eight LEDs, run off of the standard molex power connector, and beautifully illuminate your PC. However, I can custom build an illumination module with almost any features you want I can even use blinking LEDs. And the best part is they are cheap, the standard module will only cost you 10 dollars plus shipping. These are built with quality parts and are fully tested. The standard module is built with eight high luminosity white LEDs, just like in this instructable https://www.instructables.com/id/LED-Light-Module-for-Your-PC/. I can customize these in the following ways: More or less LEDs. I can use any number of LEDs that is a multiple of four. Blinking. I can make these with all or any number of blinking LEDs. Different breadboard sizes. I can make these with any standard size breadboard If there is a different modification you want then let me know and I may very well be able to do it. Extra modifications may cost slightly more, but they are still significantly cheaper than an illuminated computer cases. Look at the pictures and if you want one or wish to inquire about shipping post or PM me.

Posted by nurdee1 6 years ago


esp8266 WiFi module - stand alone?

So I've been looking at this esp8266 wifi module, which seems to be a popular toy for Arduino users.  I myself am one of those Arduino users and so I bought a couple of these to play around with.  So far they work great with the Arduino, but I read somewhere, I think it was make.com, that these modules can actually be programmed to be used without the Arduino or other external microcontrollers.  I simply wondered if this was in fact true, since I can't seem to find any evidence of it being done.  If it is true, does anyone know of any good tutorials or instructions on how to do it?  I just want to be able to turn on and off a single LED via wifi without using an Arduino or other external microcontroller.  Any tips, links, suggestions would be very welcome.   Thanks ~Dudes

Posted by dudes 2 years ago


Converting a LCD video brochure into a monitor.

I've recently found a video brochure, that consists of a 4.3" lcd display module, among other things. I'm interested in turning it into a second monitor for my computer. Is it possible to connect it through a mini-usb? (other means also welcome) Thanks oukes

Posted by Kleinkieser 3 years ago


Best flexible touch screen display modules

I'm looking for recommendations for flexible touch screen display modules that I can buy in small quantities for a personal project.  I'malso curious about the tradeoffs between OLED and LCD displays.  Ideas?

Posted by colinmcd94 3 years ago


Making your own digital assistant using ardino uno gsm shield Sd card module and VR shield

I am building a personalized assistant or a daily smart reminder sort of which speaks to you. Using the Arduino R3 and GSM Shield: SMS will be sent to the SIM card in the GSM shield connected to Arduino uno and the data fro the SMS will be extracted and stored on the SD card which will be displayed on an LCD screen. All of this will be voice activated and controlled.  Need help with the logic and working of this setup.

Posted by shreyansoswal 2 years ago


Building a sound reactive lightbus/module visualizer

Hello fellow instructables.com dwellers!!I am wanting to do a case mod with a window of frosted plexi glass and have LED lights behind it for show. I also want to be able to make them dance to music or whatever goes through my soundcard and cannot find a good instructable for this.What I understand is that you need a sound reactive module hooked up to your lights and have seen these things for sale on ebay, but no info on how to build my own.here are some links to videos who us this tech in lighting:LED visualizerexternal cold cathodsON A DS!!sunbeam lightbusmorelast oneSryy bout all those links : )So if anyone can help me find a DIY guide for something like any of these, or any info that will prevent me from having to buy one and have no idea how to mod it. Thanks to everyone who replies in advance, and wish me luck.

Posted by The Jesus Panda 10 years ago


Shield:FAIL problem in ESP8266-01 with Arduino UNO

I have been working on a Security System project wherein I should get an email if the PIR sensor detects any human presence. I have used an Arduino UNO, ESP8266-01 WiFi module and a PIR sensor. Power supply: Arduino is powered through the USB connection of desktop and ESP8266-01 is powered through the 3.3V pin of Arduino UNO and I have not faced any problem with that 3.3V connection of Arduino. The connection between Arduino UNO and ESP8266-01 are as follows: Arduino UNO ESP8266-01 Rx  Rx Tx  Tx 3.3V  CH_PD & VCC GND  GND   GPIO0 and GPIO2 left open. After successfully uploading the 'BareMinimum' code as found in 'File>Examples>Basics' of Arduino IDE, the ESP8266 is able to communicate correctly i.e. connecting to a wifi network or serving as an access point via SERIAL MONITOR.The ESP8266-01 displays '0018000902-AI03' as the firware version when I type AT+GMR in the serial monitor of Arduino IDE v1.6.8 Then I created an account on https://temboo.com/ and used the 'SendEmail' choreo as found under 'Google>Gmail>SendEmail'. I selected the 'Arduino' option in one tab and 'Arduino Wifi' option in another tab.I then entered the required details including the 'App specific password' and I was able to successfully run the choreo. Problem: I was able to successfully upload the code  to my Arduino UNO that was generated by Temboo. But after uploading the code, when I'm opening my SERIAL MONITOR window from Arduino IDE a message "Shield:FAIL" is being displayed. I'm not able to communicate with the ESP8266 any further. But if I upload the BareMinimum code again, then ESP8266 works normally. I'm a newbie and dont know much about the programming of Arduino though some basics of C are clear.Please if anyone can help me with this, I would be very grateful. The code has been attached.

Posted by JigarF 2 years ago


Any knowledge on a peltier cooler thermoelectric cooling module

Needs help putting assembling a thermoelectric module for a possible inventing.  Suggestions on the supplies and parts needed

Posted by jayhead 6 years ago


Wireless printer module as Arduino wireless shield?

Hi there, I was wondering if any of you guys see a way to use a printer wireless module with an Arduino. I took the module from a canon printer.  If yes, how complicated would it be if you grasp just some of C++? thank you all!

Posted by Matienzo 4 years ago


Gadget Gangster Propeller Platform

The Propeller Platform Module (pictured below) includes an 80Mhz, 160 MIPS Parallax Propeller microcontroller, 32kb of EEPROM with space for a second EEPROM, 5V and 3.3V Voltage Regulators and the pin sockets to add additional Gadget Gangster Platform modules like the LCD UI Module or the Prototyper Module.All Gadget Gangster Platform Modules utilize .1" pin spacing and are breadboard compatible. Here's a little video demonstration of the LCD UI and Propeller Modules: What is the Gadget Gangster Platform?The Gadget Gangster Platform is a lot like the Arduino with a few improvements on the basic idea;-Modules (a.k.a. shields) can be connected to each other on top and bottom. For example, you might have a Propeller module in the middle, an LCD UI on the top, and a prototyper on the bottom. We've got a few initial modules to start, and we'll continue to expand on the selection with more modules and microcontrollers.-Pin spacing is .1". This makes the Platform compatible with breadboards, and it lets you use Platform modules in combination with other project boards.-The board footprint is 3.8" x 2.5", which is the same footprint as ExpressPCB's MiniBoard service. This makes it easier to add your own custom module.-Because they're featured in Jon Williams' Spin Zone column in Nuts and Volts, they're well documented. The Propeller Platform Module will be the basis for many of projects described in his upcoming columns and the LCD UI module will featured in his September '09 column. -Platform Modules are licensed under the MIT license (essentially public domain), giving you the flexibility to use the design in commercial products or anything else without restriction.[/list]I'm super-excited about these new project boards. There's more info on Gadget Gangster but if you have any questions, you can just reply to this thread.

Posted by Gadget Gangster 8 years ago


WANTED: Arduino modules with RS-232

Somewhere previously, (which I thought I had favorited, but obviously didn't), someone pointed out USB Arduino modules are simply converting back to RS-232 when programming the chip. As I want to do my development without Windows or USB, I would like to know if there is anyone out there who has excess modules with RS-232 connectors directly attached, even if I have to pay for the USB versions as a swap. Otherwise, if someone knows these modules better, a USB by-pass straight to the RS-232 part of the module would also be appreciated. Mic

Posted by Treknology 4 years ago


voice recognition module for arduino

Hey Guys,  has any of you experience with the voice recognitions module. I need help to program it!! I watched the tutorial but I could not program my module. There they said I had to write AA11 to start program the first group. In the tutorial the program write start, again,.... I did all the same, but it did not come start. Can me help someone??

Posted by Hansta98 3 years ago


Send GPS data from smartphon to module GPS connect to arduino

Hello, I want to know, If i can send data GPS from my smartphone to anathor GPS module EM-506 connect to Arduino or raspberry pi. Thank you

Posted by ibrahimenedis 2 years ago


V3 elechouse voice recognition module

I'm having a problem about my V3 voice recognition module because when the time that I will train or save commands arduino did not recognize but the sample codes for v3 is working? I'm confused about it please help me guys ;(

Posted by Mary JaneC3 10 months ago


ultrasonic sensor convert 4 pin to 5 pin

Hello there, Is it possible to convert a 4pin ultrasonic sensor to a 5pin? I have this sensor with 4 pins: http://www.ebay.com/itm/Waterproof-DC-5V-DYP-ME007Y-Ultrasonic-Sensor-Module-Measuring-Range-30cm-3-5m-/201025966447 and this display module with "5 pins": http://www.ebay.com/itm/Mini-Non-contact-Ultrasonic-Motion-Detector-Module-Sensor-Display-Board-Security-/360717776823 How do i get the display module and sensor module, to talk together? BEST :) Regards Lasse

Posted by dmor 4 years ago


A small doubt regarding modulation

Hi guys! I have a doubt regarding modulation process, more specifically regarding the spectrum. I understand the spectrum of sinusoidal signals, the amplitude or energy is concentrated at a particular frequency, say Fm, and hence the delta functions. But why is the spectrum of the unmodulated message(original) signal always displayed only in the shape of triangle? I have been going nuts over this question.  I have attached the images just in case

Posted by charmquark 5 years ago


troubleshooting voice modulator

About four years ago I bought this robot voice kit for a halloween costume: http://www.kemo-electronic.de/en/Hobby-School/B107-Robot-voice.php (the scematics are near the bottom of the data sheet) I never finished it and now that I put it together it's not working. The signal goes through to the amplifier, but without the modulating happening. Does anyone know what the problem could be, or if there is a way to narrow it down without desoldering and testing the components individually? Thanks

Posted by Jur 5 years ago


[Solved] Does anyone know about R308 Fingerprint module

Dear All, As the subject, does anyone know R308 fingerprint module? I really need it's pinouts detail. I already try to searching but still couldn't find it.  Or at least, please advice me where should I search it? Thank you

Posted by yogi.setiawan.520 3 years ago


electrofishing

Can someone post an instructable on how to do electrofishing with just a car battery and a switch and wires, without a samus module or a susan module that you buy off of ebay?

Posted by aalnumairi 4 years ago


Hi3516 Access Root Error

First, I apologize for my english. I have a camera module with hi3516 SoC and have to access to hi3516 as root. But I couldn't that. If I begin to explain from start. I had an IPC, extracted it and now I have 3 modules (camera module, ir cut module and power / api module). I found 3 holes on camera module, these are GND, Rx and Tx. I soldered them with 3 female jumper cables and connect to ftdi module. I used micro USB to USB for ftdi-pc connection. Powered up camera module with 12V. In while, I download a program, what name is coolterm, to my pc. I opened coolterm and set baud rate to 115200 (hi3516 standard). Camera module booted up. I pressed a button when I see "Hit any key to stop autoboot: 1" text. Until here I followed an article and everything is fine. But that article says "You have to press enter after to type "root" to gain shell access" and I can't access shell when type "root". I got an error like "Unknown command 'root' - try 'help'". Hi3516 has embedded linux os. Article Link: https://felipe.astroza.cl/hacking-hi3518-based-ip-camera/ Any ideas to help me?

Posted by Anıl Enis 1 year ago


What can I do with an old Blackberry camera module?

Hi all, I just stripped an old blackberry for parts and now have this camera module: http://store.daily-mart.com/products/Blackberry-Curve-8300-8310-8120-Camera-Module-Parts.html From what I understand, these modules are fairly self contained units and are able to output JPGs or some similar file. The back of the board has 22 terminal spots that the pins in the pone connected to. I am assuming that 2 of these are for power and the other 20 are for data. I am hoping that somebody can direct me to where I can find out more about how this connects so that I can incorporate it into some sort of arduino project. Thanks!

Posted by tastysoup 7 years ago


Hi3516 Telnet Access Error

First, I apologize for my english. I have a camera module with hi3516 SoC and have to access to hi3516 with telnet. But I couldn't that. If I begin to explain from start. I had an IPC, extracted it and now I have 3 modules (camera module, ir cut module and power/api module). First, I tried access to hi3516 as root. But I couldn't that. Then, I go on another method, telnet. I once cut the network cables of power/api module for some reason. Now I soldered them to each other and connect to internet with a rj45. Powered up camera module with 12V. I open advanced ip scanner(for detect ip address of camera module) and putty when camera module booted up. I typed ip address of camera in host name or ip address box and select telnet in connection type. Then, I clicked open button. A console window came to my screen when putty configration closed and I typed username and password correctly. But I got a warning when I typed right username and password. I can't remember how warning was. I got an error like "Login incorrect" and have to try again totally 3 times for every connection when I type wrong username and password. I followed an article for all of it. Hi3516 has embedded linux os. Article Link: http://www.hkvstar.com/technology-news/china-ip-camera-configuration-firmware.html Any ideas to help me?

Posted by Anıl Enis 1 year ago


raspberry pi digital dimmer of light bulb

Hai, iam working on dimmer light project with raspberry pi the module which iam using from research design lab issues with the device to test or run it. please any one can suggest me can i change the module to wifi based dimmer module to test or run the light dimmer. thank u

Posted by james2jain 7 months ago


Using ESP8266-01 WiFi module with Arduino

Hi! Need some help with coding again I'm trying to just eliminate the wire connectivity which used for serial read by PC, by introducing a simple ESP8266-01 module. Can anyone give me some hand with the coding part at where I need to transfer all my serial data to my browser?

Posted by PramithM 1 year ago


How to add a proximity sensor (LED) to the Radio Shack (276-1323) recording module

How do you add a proximity sensor (LED) to the Radio Shack (276-1323) recording module

Posted by Genesis3kr 10 years ago


Stream video from OV7670 18 pins using arduino uno

I purchased OV7670 camera module and i stuck with it that how i connect this module having 18 pins to arduino uno. From last 5 days i am in search of the help but no forum can help me till yet. This is my final sem project and if this module will not work them my project will be considered as incomplete. So please help me out because i dont know even how to connect this ov7670 with 18 pin to arduino uno and to stream video live. modules i purchased are as follows: 1. Arduino Uno 2. Ov7670 Camera Module C4B1 3. esp8266 4. sd card adapter

Posted by AdityaA24 2 years ago


Using 433M-Transceiver-Module-E32-TTL-1W-SX1278-SX1276-30dBm-LoRa-Long-Range-433MHz

How do i use  433M-Transceiver-Module-E32-TTL-1W-SX1278-SX1276-30dBm-LoRa-Long-Range-433MHz with arduino uno, like schematics, codes, what is MO, M1 to transfer data as I can not find much about it. Cheers

Posted by laidlow7 11 months ago


How to connect mic to LM386 Audio Amplifier Module Board 5V-12V for Arduino

HI! I want to make a radio nany ( microphone near the baby , speaker near the mother)  I bought   LM386 Audio Amplifier Module Board for Arduino from ebay (pic attached),  a sound sensor and a speaker.  But I have a problem : When I conecting to the module input some audio like mobile phone or MP3 player it works, if I connecting a microphone (any) nothing.... Maybe somebody have any idea? Will POST the device here when will work :) Thanks! 

Posted by AnnaL3 3 years ago


Inspiration: wire

Http://www.lobzik.pri.ee/modules/news/article.php?storyid=790L

Posted by lemonie 11 years ago


5v relay module with tv usb

Hello there! I'm sorry if someone already asked this question but I can't find it! I would like to connect 2m led strip to my tv usb so it turns on and off with tv. Can I use this kind of relay ( http://www.ebay.com/itm/5V-1-Channel-Relay-Module-H-L-Level-Triger-with-Optocoupler-for-Arduino-Raspberr-/390865576871?pt=LH_DefaultDomain_0&hash;=item5b016763a7 ) to do it?  Thank you in advance!

Posted by tosho82 4 years ago


Community Website design? Could Drupal be used and what would be the minimum modules to make it happen?

Community Website design? Could Drupal be used and what would be the minimum modules to make it happen? Could it be done with the basic installation? Could a step by step be done?

Posted by josheeg 6 years ago


ESP8266 WiFi Module

You need a separate grouping for this module under Technology This is a Microprocessor running at 80Mhz to 160 Mhz  with 512 kB to 4 Mb of program memory It costs $3 and is programmed with various languages compiled to machine hex and uploaded by a variety of programs to run entirely on its own with a 3.3Volt power supply . It connects to your modem , acts as a modem , serves web pages and sends to web pages and a whole lot of other stuff I have not used yet See here in the wiki for more detail   http://www.esp8266.com/wiki/doku.php

Posted by tytower 3 years ago


help!

Where can i get a tut for for graphics programing in erl and where can i get the module

Posted by cris1133 10 years ago


POWERING SERVOS and other modules

Can you guys help me pls.I don't know how to power servos.My projects use an ultrasonic sensor with a few servos.when i try to power it up only 1 module that works.Can i power the servos using a different power source?like a power bank

Posted by Alexander heron the inventor 1 year ago


arduino wifi time-lapse camera

Hello everyone, I am trying to build a cheap arduino controlled time-lapse camera system. parts I chose so far are; camera; OV7670 wifi; ESP8266 board; nano here is an amazing instructable on how to use the wifi module; WiFi temp logger. Unfortunately I can't find a simple and well written instructions on how to connect the camera module mentioned above. I don't need to save the file on the board, I just need it uploaded to a web page, cloud etc. the picture will be taken 2 times a day with 10hr delay in between (one morning, one afternoon). here is the closest example I can find on instructables to what I want to accomplish, although this is over bluetooth and a different camera module. 1. arduino time-lapse camera 2. image capturing bird feeder thank you for your help. this is very important for me, I am very new in the field and don't have much experience. I am sure many other people will find such an instructable useful as these modules are extremely cheap. . love & peace akin,

Posted by Akin Yildiz 3 years ago


AM transmitter design ??

Is it better to use a diode for DSB SC modulation for good range ? or it's better to use npn transistor ?

Posted by walidj 7 years ago


Very basic electronics kits for 2 yearolds!?

My 2 year old daughter appears to enjoy the very basic geeky things that she's gotten her hands on so far.  Things like plugging headphones into the iPad to listen to music; building things with large Lego blocks; turning torches on and off; playing with little remote-controlled-cars etc etc. I'd like to see how she gets on with some sort of basic "electronics kit" which allows her to experiment a little while teaching her some very basic principals (like circuits require both a power source and a load). All existing electronics kits I've seen would be way to advanced for her.  For example, she's years away from being able to understand what "completing a circuit" means (i.e. any kits which require you to connect both a negative and positive cable from power source to actuator would be way to abstract for her). I'm thinking of making her a very, very basic "electronics kit".  Each component would be in its own little tinted, semi-transparent box. There would be several "sources" of electrical power (small battery pack, PV cells, little hand-cranked dynamo etc).  Each source module would have a single large DC socket to send power to another module.  Each source would produce about 3 volts and would have short-circuit protection. There would be several "actuator" modules like a lamp, motor, door bell, volt meter, radio etc.  These modules would each have a single small DC socket. Cables would have a large DC socket on one end and a small DC socket on the other.  The use of large DC sockets on the power source modules and small DC sockets on the actuator modules should make it mechanically impossible to create a "wrong" circuit (like connecting a battery pack to a  PV cell). And maybe some basic "control" modules like a switch, light-operated switch, oscillator etc.  Each  control module would have both a small DC socket (power input) and a large DC socket (power output to actuator). Each class of module (actuator, controller, power source) would have its own colour. My first question is: does a similar kit exist for purchase? If not, I'll make the kit for my daughter, unless anyone has good evidence that such a project would still be way to advanced for a 2 year old.  Of course, I'll start with the real basics like just a battery module, switch, light and two cables to see how she gets on with it.

Posted by jack_kelly 5 years ago


need help for nrf24l01+

Well i am using rf24 module for a project since i am new to it i am having some difficulties to send the data. Actually i am doing a remote consisting of a geeetech voice module + nrf24 + arduino nano. It must communicate with a hub which comprises of arduino uno + rf24 + relays. I have tested the voice module and the data is read as serial command. see the code for a simple example without rf24 below. For my project i need to make the transmitter read the serial command of the voice module and send it to the receiver side. In the receiver side it will activate relay with a switch case section. I would appreciate if anyone could help me out and suggest me how to send the command of the geeetech voice module via rf24. //code for simple test between voice module and nano int led1 = 2; int led2 = 3; byte com = 0; void setup() { Serial.begin(9600); pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); delay(2000); Serial.write(0xAA); Serial.write(0x37); delay(1000); Serial.write(0xAA); Serial.write(0x21); } void loop() { while(Serial.available()) { com = Serial.read(); switch(com) { case 0x11: digitalWrite (led1, HIGH); //turn red on break; case 0x12: digitalWrite (led2, HIGH); // turn yellow on break; case 0x13: digitalWrite (led1, LOW); // turn red off break; case 0x14: digitalWrite (led2, LOW); // turn yellow off break; case 0x15: digitalWrite (led1, LOW); digitalWrite (led2, LOW); // turn both off break; } } }

Posted by keshavcanaye 1 year ago


sound effects modules

Hello!! I am planning several Halloween props that will benefit bigly from sound effects. For instance...I'm working on a mantel version of the demonic grandfather clock in Disney's Haunted Mansion. It would be awesome to have the sound of the ominous ticking, backed with a chime, that the "real" clock has. This could be an audio loop of just a few seconds. Some of the other parts of my scheme would be enhanced with short loops of sound effects or mood music...a minute or two at most. I don't have a background in electronics, but I can follow directions. Any advice on constructing a few, small sound effects modules? Thanks!!

Posted by Purple Chez 1 year ago


Batteries and LED light modules - correctly powering for maximum life

Hiya, I need to power a LED strip of 3 LED lights with batteries. The LED box says it is a 12VDC light module, and on the back of the box it says the Input Power is 0.0453A. My limited understanding is that I should use a 9V battery plus 2x AA battery (I have limited space - a 8 AA pack wont fit inside my project)...is that correct? I need to know how long these batteries will last - if it is less than 10 hours can you suggest another way of powering it? I'm incredibly lost and very new to understanding all of this! Thanks in advance. 

Posted by SonyaS2 3 years ago