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    Good day.

     

    I get unexpected results when connecting a K2633 relay card to my Raspberry Pi 3 and hope someone can help.

     

    When my Python 3 code sends 3.3V from any GPIO pin to any IN pin on K2633, the K2633 LED on that channel lights, but that relay does not energize. This occurs when the K2633 is supplied with either 5VDC from the RPi or 9VDC from a separate and isolated supply.

     

    The four K2633 SPDT relays are 6V units. K2633 product literature calls for a 9V power supply - which I have. I realize that 5V from RPi is not enough voltage to energize the relays.

     

    K2633 is built correctly and any relay can be forced to function properly by supplying 9VDC to the K2633 and shorting any IN pin to GND. In such a case, that particular relay will energize. Do I need to program an RPi GPIO pin to go to GND when I want to energize the relay? If so, I am not aware of how this is possible - since I understand output pins to only be capable of either zero or 3.3V when defined as outputs - with zero volts not meaning 'connected to GND'. Do I correctly understand this item?

     

    This is a breadboard setup for proof of concept to control any relay and with nothing presently connected to C, NO or NC terminals, so final switching application is unrelated to problem. Final application will be to switch a US 110 VAC / 90 Watt ceiling fan on and off. The fan's power ratings are within the relays' capabilities of 15 A / 125 VAC. Is a different relay card a better choice?

     

    RPi and code function properly - since I can turn on and off an LED with the circuit / program in addition to seeing 3.3V at any K2633 IN pin with a multimeter.

     

    Thank you for any direction you might be able to offer.

     

    Matt


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  • 06/09/16--08:50: Brittle PLA
  • Has anybody had any issues with PLA going brittle?  At work we have a CEL Robox and I've noticed that some white PLA filament that was on the end of a spool and lying around for several months has gone brittle and snaps easily. New filament is much more bendy.

     

    We have a windowless office so it has only seen fluorescent light, so I guess that it's to do with moisture in the air.  We keep current filament in ziplock bags with silica gel packs.

     

    I know that PLA is supposed to be bio degradable so maybe it's just degrading?  I'm wondering if the same will happen to finished parts?  I'm planning to print out some test strips and test them over time, but wondered if anybody has any good info on this and point to a good online resource.  I'll also be having a look on the CEL site for info.

     

    I suppose this is possibly another reason for using ABS on my REP RAP bodge-o-matic printer at home!  I thought I'd get away with PLA if it wasn't too hot.

     

    Dan.


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    In our last episode, we mentioned that we were unable to get our hands on a Raspberry Pi Zero when they were released. We've gotten a lot of build ideas revolving around the RPZero, but no Pis around for the making. Two wonderful fans of the show DID have some and they were gracious enough to mail them to us. Special thanks to Blacksheep32  and YouTube user, stryk187, aka Rob Lada for sending us your Raspberry Pi Zeros!

    IMG_0158.JPG

    So now it's really time to submit your build suggestions! What would you like to see us build with these two fine pieces of electronics here? Let us know in the comments below.


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  • 02/19/17--15:52: Motorcycle Winter Monitor
  • Current status: Still waiting for the kit. I will use my mac to create the code for the project.

     

    From what I learned so far, I need to write the code on the 432 and use a WIFI shield to prepare the web page and send out the data. The 432 boards come with an RTOS. Hope thats not to complex to use.

     

     

    Just as an overview here is my original response for the project:

     

    Motorcycle Winter Monitor

     

    The challenge

    If you live in the northern part of the US you know the drill. Every fall you winterize your toys, Motorcycles, classic cars, convertibles, boats. Every spring you face the same issues, battery died, mice chewed through the charger wires, hoses busted.

     

    The solution

    Equip the battery charger, conditioner with an IOT monitor. Measure battery voltage, charging current temperature, humidity. Transmit it via bluetooth or wifi to smart phone. Anytime your worried about your toy in the corner of your garage, where you can't get to now? Just look at your phone and you get a great health status.

     

    Implementation

    Use one the wifi / bluetooth  chipsets with a build in processor and analog inputs. Connect the inputs to the sensing circuits for voltage, current, temperature and humidity. Processing requirements are low, so the build in processor can handle the load. For power supply of the circuit use the battery charger itself. No need to be super lower power.

    Implement a simple bluethooth / wifi app for the smart phone. For wifi a small HTML script called from a browser should be fine. Make sure you can handle multiple devices, for every toy you have winterized.


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    Upcycle it Design Challenge
    About this Challenge The Kit The Prizes Intro Video What is Upcycling Video
    Unboxing Video The Judges Example Application Terms and Conditions The Challengers

     

    Welcome to the Upcycle it Design Challengers!

    'Upcycle it' begins with element14 in association with Intel® sponsoring the first 15 Challengers pairing their preloved electronics with an Intel® Edison for Arduino.

    Please join us in congratulating the official sponsored Challengers.  We look forward to reading all your initial blogs introducing your project designs:


    Carmelito Andrade | Daniel Friedman | Fernando Hila Ruiz | Gerrit Polder | Jason Wier | Joey Brock | John Kutzschebauch | Konstantinos Konstas | Megan Rose Bryant | Miguel Angel Garcia Fuentes | Ognyan Chikov | Ravi Butani | Sakthi Vvs | Sergey Vlasov | Workshopshed


    Carmelito Andrade
    United States

    Project: Wake up to the Upcycled Clock

    Synopsis: I have an old clock which was given to me by my Mom and is one of the few things I had that the movers packed when I moved from Toronto, Canada, to Los Angeles, California, for work. The idea here is to upcycle the clock and add some smarts to it using the Intel Edison. (And yes, I am going to have to come up with a better name than "Wake up to the Upcycled Clock," if selected.)  Here are the set of features I plan to implement over the period of the challenge: Show the inside temperature and humidity on the screen using a DHT sensor on an OLED screen; show weather conditions outside; show the outside temperature and humidity using openweathermap.org; show the air quality at home and send an email if the air quality falls below a certain threshold; add a notification light for gmail, youtube and twitter mentions. Here the plan is to replace the couple of mirrors section of the clock with acrylic laser cut pieces with addressable LEDs that shine behind them to show an email and a youtube channel subscribe is live and mentioned in a tweet.

    Carmelito Andrade's project blogs coming soon


    Daniel Friedman
    United States

    Project: Tick the Tockman

    Synopsis: To upcycle an alarm clock and integrate several pieces of technology that allow one to have a better day. For most people, the first hour in the morning can determine the happiness and productivity they will experience throughout the day. How about a reminder of what you have to get ready for or perhaps your favorite song? In addition, what if our alarm clock did more? What if it told you how to get ready for an awesome day? Our group of high school students plan to use Internet of Things (IoT) technology to upcycle some common household appliances. Through IoT, we plan to make your morning run smoother and allow you to have a great start to your day.

    Daniel Friedman's project blogs coming soon


    Fernando Hila Ruiz
    Australia

    Project: Rotary Hydroponic System using an old Washing Machine

    Synopsis: Adapting an old front-loading washing machine and use it as the main assembly of a rotary hydroponic system controlled by the Intel® Edison Kit for Arduino.  The washing machine will monitor nutrient solutions, ambience, energy control, and control outputs.  The kit will be connected to the network through WiFi, allowing remote control monitoring status through a dashboard in order to get data to the cloud and send alert messages.

    Fernando Hila Ruiz's project blogs coming soon


    Gerrit Polder
    Netherlands

    Project: Upcycled Nixie Display

    Synopsis: Using the Intel® Edison to upcycle an old Nixie Display found in my attic so the unlimited subject possibilities from the Web that can be displayed through a six digit number. It can be anything from the current local time from a time server or the local time elsewhere in the world, as well as displaying the temperature and humidity of the closest weather station or the forecast for the next day. It can also display the number of visitors of this project's webpage, the internet speed, the position of the ISS space station from space.com. You name it!  My plan is to implement an IoT protocol in order to program the behaviour of the display from a web page.

    Gerrit Polder's project blogs coming soon


    Jason Wier
    United States

    Project: PDU Upcycle for Automation

    Synopsis: My project is to take an outdated APC AP9211 and give it new life with modern automation. The new APC AP9211 will have a modern HTML5 web interface, automation based on sensors, and the ability to control via MQTT. Once finished, the AP9211 will be able to energize outlets based on sensor readings, report sensor readings via MQTT to a broker, and be able to turn on my wife's coffee maker so that she is happy in the morning.

    Jason Wier's project blogs coming soon


    Joey Brock
    United States

    Project: Hermes 3000 Typewriter Upcycle

    Synopsis: For this project, I will be upcycling a Hermes 3000 Typewriter. The idea is simple: send an email using a typewriter. To accomplish this task, I will install the Intel® Edison and some photointerrupter sensors on the inside of the typewriter. The sensors will allow the Edison to read which keys are being pressed on the typewriter. It will be more of a novelty idea rather than solving a realistic problem, but in the end I will make this 1960's typewriter a fun 21st-century-compatible device.

    Joey Brock's project blogs coming soon


    John Kutzschebauch
    United States

    Project: UpCycle R2I (Refrigerator 2 Incubator)

    Synopsis:  I am taking an old mini-fridge and using it as the main part of my Upcycle project.  It will be a custom-designed egg turning assembly that allows a dozen or more fertilized chicken eggs to incubate. It can be expanded to full size later.  The newer model will avoid the issues of chlorofluorocarbons (cfc), which can damage the ozone layer and still impact landfills or similar disposal options due to their size and quantity.  Ultimately, the R2I will become the incubator of chicken eggs to show success!

    John Kutzschebauch's project blogs coming soon


    Konstantinos Konstas
    United States

    Project: Embedded Web SDR client on Analog Radio Receiver

    Synopsis: I have an old Panasonic DR-28/RF-2800 from back in the 80's in my bedroom that I do not want to giveaway for recycling.  I have been thinking about building an embedded WEB SDR Client, since the time the Utwente WEB SDR was my only means to actually listen to HF radio waves. Being able to listen to BBC Radio 4’s broadcast in Long Wave clearly, and without any interference, was a very pleasant surprise for me; the same applied to Morse code (CW). Before being informed about this Upcycle it Design Challenge with Intel®'s Edison, I was very seriously thinking of taking an ESP8266 type 12 to its limits by using it for such a project, but I then thought I'd give it a try with the Edison! Why not?

    Konstantinos Konstas's project blogs coming soon


    Megan Rose Bryant
    United States

    Project: Collapsible Wind Turbine Using Recycled Alternator with Charge Controller

    Synopsis: I'm in the process of building a tiny home.  My idea is for a roof-top, collapsible wind-turbine made out of recycled and reclaimed materials. The blades would be made out of reclaimed PVC. I would build a collapsible frame, preferably out of aluminum. I would use an old bicycle wheel to help turn the alternator. The alternator is recycled from my old 97 e350. The wind mill itself would be roof mounted, but collapsible for travel. On the roof assembly, there are sensors mounted to monitor the weather and temperature. Inside the house would be the battery bank, charge controller, and led output screen. This would be enclosed in a repurposed house.

    Megan Rose Bryant's project blogs coming soon


    Miguel Angel Garcia Fuentes
    Mexico

    Project: Stay Focused In The Sky

    Synopsis: The project "stay focused in the sky" uses an old telescope manual mount, some disposable industrial motors with encoders, an old web cam, and the Intel® Edison board to create a renewed telescope mount for astrophotography with higher stability and longer exposure periods.  This web cam will be mounted in the telescope as a tracker and using image processing algorithms and digital controllers to follow various points in the sky with the highest level of stability.

    Miguel Angel Garcia Fuentes' project blogs coming soon


    Ognyan Chikov
    Bulgaria

    Project: VHS Smart Box

    Synopsis: I decided to "UpCycle" an old VHS video player into a new smart machine for watching movies, measuring the inside/outside weather condition, and for storing gold jewelry. The bigger challenge is to use the provided KIT to play an HD Video, because the scope of the KIT is in another location.  I also plan to expand this box to command my TV Set and LED lights that were installed in the sectional furniture.  Data will be sent to a web service.  I prefer to have a ready Phone app to control the state of actuators and visualize the measurements.  This will save the planet from another electronic garbage and make my house IoT connected.

    Ognyan Chikov's project blogs coming soon


    Ravi Butani
    India

    Project: Enchanted Refrigerator

    Synopsis: I would like to upcycle my 2002 made godrej refrigerator with the Intel® Edison so it can order consumables from Amazon using the Amazon Dash Replenishment Service. I will add an RGB Light with Intel® Edison in the refrigerator, which will be connected to my IoT based Smart Health monitor. This will allows me get realtime data of my heart rate and body temperature. The color of this light will change and when I open the fridge just by looking at the light color. I will get to know what will be a good food to eat based on my health parameters. Implementation: There are two main innovative features I will add to my fridge to upcycle it: (1) Auto reordering Consumables using the Intel® Edison and Amazon Dash Replenishment APIs and (2) an Enchanted Light in the Fridge using the Intel® Edison and my own IoT based Smart Health Monitor.

    Ravi Butani's project blog coming soon


    Sakthi Vvs (Sakthivigneshwar R)
    India

    Project: Funeka - The Skull

    Synopsis: I plan to upcycle a plastic skull, which I used to scare my cousin with, so it will recognize my voice (speech-to-text), move and speak (text-to-speech).  It will read Gmail account, temperature, humidity, etc. Sounds like the usual stuff? There are more fun things to it: how about some motion tracking eyes that glow blue, a cool night lamp, and some LEDs and High Voltage Arcs that react to audio?

    Sakthi Vvs's project blogs coming soon


    Sergey Vlasov
    Canada

    Project: WiFi Connected Smoke Detector

    Synopsis: I have an old smoke detector that I would like to use in combination with another project proposal of mine - the "smart oven". I want to add a WiFi connection to the smoke detector so when it detects smoke from the oven, it can send an alert to a smart phone, as well as notify the IoT connected oven and automatically turn off the oven. This will make my home a safer place with the reuse of old electrical equipment.

    Sergey Vlasov's project blogs coming soon


    Workshopshed (Andy Clark)
    United Kingdom

    Project: Interactive Racing Car Driver

    Synopsis: Andy's project will use the Intel® Edison to bring life back into two old toys; a 4 wheel drive remote control car and a dissected Furby. Both of these are easily 20 years old and have been living in a box for too long. Now is the chance to free them! Andy is an experienced maker with a big Element14 design challenge under his belt, the "Enchanted Cottage". Last year he built a Dragon Detecting animatronic knight. His experience with embedded Linux is growing year by year and he has worked with a wide range of maker boards. Andy has a selection of old electronic parts hoarded over the years so the intention is to incorporate as many old components as possible.

    Workshopshed's project blogs coming soon


    Not sponsored?

    Why not challenge our Challengers? We still invite all engineers, DIY hobbyists and tinkerers to upcycle any obsolete item, computer, piece of electronic equipment or appliance in to something useful with greater functionality and value.

    If you still want to take part, simply buy Intel® Edison for Arduino, post atleast 10 blogs on your finished design in Upcycle it before midnight (GMT) on the 4th June 2017 and you too will be in with a chance of winning fantastic finalist prizes.

    Read full terms & conditions for more details.

    Good Luck Everyone!


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    main board top

    Few days ago I got TV with following issue: there is no way to power on TV (only standby LED is on). I have checked that all voltages on IP board (power supply and inverter) were correct. Next I have checked key elements on main board. After analyze of schematic I have found guilty: it was electrical capacitor 100 uF / 16V (C5068) located near 1.2 V LDO (placed under metal shield near the MCU). After replace of this element TV works properly.

    main board bottom


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    Does the dead human body still emit infrared? Will sensors like omron d6t still work?


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    element14's The Ben Heck Show

    Join the Ben Heck team every week for amazing hacks! Watch them build and mod community-inspired projects using electronics!

    Back to The Ben Heck Show homepage

    Connect with TBHS
    Featured Bonus Content
    See All Episodes

     

     

    The Ben Heck Team begin mapping out the Logic Gate Game by considering its purpose, areas for improvement, reducing costs to build to scale, and materials to be used.   Ben uses a PIC microcontroller with plenty of I/O, wires up a breadboard, and uses ChipKit to quickly roll out code.   The team needs your help deciding on an LCD screen and a microcontroller with enough IO to connect with all the plugs!

     

    Ben and Karen begin by mapping out a plan for their prototype using a diagram from a previous build.  They get rid of FLIP-FLOP, COUNTER, NAND, and NOR and keep AND, OR, XOR, and NOT. They can make NAND and NOR using the NOT gates. Each game set will come with 10-20 jumper wires to keep costs reasonable.  Ben and Karen offer different perspectives on how best to set up a learning game and who their target audience will be.

    Next, it’s time to Ben and Felix to make a test circuit. Ben takes out a PIC32 starter kit with plenty of IO on it.  You program these with Microchip’s MPLB X IDE which can be found online. If they’re able to find a microcontroller with enough I/O they could conceivably simulate all the logic gates.  The other option would be to use an external I/O expander.  The idea is to use a line of female headers and another line of male headers to crudely simulate their logic gate connections and then trying to do a state machine loop MPlab to get it to simulate what they want.

    Before going for it with MPlab, Ben first uses the Arduino ChipKit IDE to make things easier so he can roll out a quick example.  The ChipKit uses a PIC32MX795F512L which has plenty of I/O to test.  Ben wires up the breadboard and writes some code.  They’re writing the logic gates in code instead of using IC’s.


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    Introduction

     

    This is my first post as part of Upcycle It design challenge.

     

    Project idea:

     

    I have an old smoke detector that I would like to use in combination with other wifi connected electric appliances (I haven't seen yet a "smart oven" in BestBuy), which has a risk of causing fire or other devices that can control electricity supply to them (as suggested by mcb1 - like Sonoff WiFI switch or the project by jasonwier92) I want to add a wireless connection to the smoke detector, so when it detects smoke (or other properties of fire like higher then usual temperature) from a connected appliance, it can send an alert to a smart phone, as well notify the IoT connected smart appliance, so it can automatically turn off itself. Hopefully this project will make my home a safer place with the reuse of old electrical equipment and Intel Edison Arduino Kit.

     

    Here is a more formal description using BDD scenario template:

     

    Story: Shutdown "smoking" appliances

     

    As a home owner

    In order to keep home safe from risk of fire

    I want to shutdown electric appliances when smoke is detected.

     

    Scenario 1: Shutdown "smoking" smart appliances

    Given that a smoke detector is located near smart appliances

    And smart appliances have capabilities to switch power off

    And smart appliances have capabilities to subscribe to a fire alert.

    When a smoke detector detects smoke or high temperature

    Then it should send fire alert to connected smart appliances

    And smart appliances should switch power off

    And I should receive alert on my mobile phone.

     

    Scenario 2: Shutdown "smoking" appliances

    Given that a smoke detector is located near appliances

    And appliances connected to electric power over WiFi smart switch

    And smart switch has capabilities to subscribe to a fire alert.

    When a smoke detector detects smoke or high temperature

    Then it should send fire alert to connected smart switches

    And smart switches should switch power off

    And I should receive alert on my mobile phone.

     

    I'm planning to use MQTT for messaging between components. The messaging allows loose coupling between components. I've a level of confidence in MQTT based on my past projects (like Smart Shower) as well in a business context.

     

    While I'm waiting for Intel Edison I inspected at my old smoke detector. It is quite old (produced in 1999). It still can produce noise during push test. But I will run a real "smoke test" to see if its sensor can still detect smoke. (Update: The smoke test confirmed that it is still working as expected). Just in case it is not working I've ordered a new smoke sensor MQ-2 as Grove-Starter Kit doesn't have one. It is Arduino compatible and quite inexpensive. (Update: It will be interesting to compare precision of MQ-2 vs. built-in sensor. But I expect that built-in sensor is consuming much less energy.).

    smoke detector box

    It requires 9V power supply.

    smoke detector open

    And this is back side of its board and buzzer.

    smoke detector - back

     

    Thanks to all and especially mcb1 and jkutzsch, who helped me with this post!


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  • 03/24/17--10:16: Logic Gate BG: Ideas List
  • I want to gather all the ideas you all post for the build. If I missed something, let me know in the comments.

    You guys are great. Keep the ideas coming!

     

    Overall Design restrictions:

    Parts Needed: (so far)

    • Connectors - wires with a solid connector on each end, connectors on the board that the wires easily attach to that can be easily interfaced with a circuitboard (preferably with little to no hand soldering required)
    • Display - Need a way to indicate difficulty level, cycle (3-4 total per puzzle), score, and possibly the gate puzzles themselves.
    • Indicators - LEDs or something else to show given signal, user generated signal, and desired result.
    • Overall size - Ben wants it to be portable. All components have to fit in a small encasement that can easily be held in the hand while playing.
    • This is going to be a manufactured product, so all components need to be easily sourced, not scrapped from old products.
    • Needs to have a physical interface, because otherwise it's just a video game/app.

    Other Design Factors

    • Target audience: Age 7+. Need to factor in the dexterity and strength of children.
    • COST: We are aiming for the sale cost of the game to be $100-150. This means that all parts should come to a cost of under about $30.

     

    CONNECTORS

    Design restrictions:

         Inexpensive, $0.05 or less each.

         Not labor intensive to assemble or no assembly required.

        Ideal price: <$0.10 each

    Ideas

    • Magnetic purse clasps
    • Stackable to duplicate I/O
    • Revisit using banana plugs

     

    DISPLAY

    Design restrictions:

         Needs to be small enough to be driven by the hardware Ben chooses.

         Approximate resolution: 480x272

         Larger than 4", preferably 6".

         Does NOT need to be touchscreen.

         Does NOT need to be color.

         Ideal price: ~$10>

    Optional: Versatility. Using a screen rather than a static graphic to represent the logic gates allows for more options and possibly requires fewer connections on the game surface.

     

    Ideas

     

    INTERFACE

    Design restrictions:

         Used by children with limited dexterity and finger strength. 

         Will need many wires and game board connectors.

    Ideas

    • Have a breadboard-like interface with logic gate "pieces" that can be placed to solve a puzzle.

     

    Other Design Considerations/Suggestions

    • Connectors with electrical current flowing them being a safety hazard (tm14)
      • Give Felix speech bubbles.