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JerryE4

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      • DIY Apple Remote (Slideshow for the Instructable)
      • DIY Apple Remote Shield for the Arduino
      • Simple 2-way Motor Control for the Arduino
  • JerryE4 made the instructable DIY LED TESTER
    DIY LED TESTER

    I have built these before but have long since put them away, so I could find them again, should I need them. So today a package arrived it contained over 500 assorted LED'S in a bulk plastic bag. Now the ones with color lenses were quite easy to sort them out, and they joined my collection in th plastic containers under my desk. The clear ones, however were problomatic. So a quick search brought me to this project I pretty much followed the directions however I don't know where my glue gun is, so I left the wires long on the 9 volt connector and left the PC board so it could sit to the side. I left the connector with 3 leads for convienance, two holes for ground and one for power. This seems to work well that way. It made for quick work sorting the LED'S by color, now I must sort by …

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    I have built these before but have long since put them away, so I could find them again, should I need them. So today a package arrived it contained over 500 assorted LED'S in a bulk plastic bag. Now the ones with color lenses were quite easy to sort them out, and they joined my collection in th plastic containers under my desk. The clear ones, however were problomatic. So a quick search brought me to this project I pretty much followed the directions however I don't know where my glue gun is, so I left the wires long on the 9 volt connector and left the PC board so it could sit to the side. I left the connector with 3 leads for convienance, two holes for ground and one for power. This seems to work well that way. It made for quick work sorting the LED'S by color, now I must sort by size and power, that will indeed put the little tester through it's paces.

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  • Arduino | 37 in 1 Sensors Kit Explained

    Helpful to say the least, even now when the manufacturer has changed, it appears that the only change has been the part numbers, that said, the photos do a nice job of letting one find the proper code for the proper sensor. When saving, I renamed the files to match the listed name so the confusing code names are gone and I can go through without trying to figure out the sensor by the code. It does work for the ones with comments intact but some are simply code with no idea what they are for if you don't rename them on download, that is if you want a complete collection in storage. I have yet to try them all, but that will be today's project.

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  • Wireless AC Current Detector

    I used to build "ghost detectors" for my nieces and nephews, and later for my grand children using a simular circuit but based on one JFET transistor to detect EMF and supposed ghosts, the kids loved them.

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  • Lilygo T-Watch 2020 Arduino Framework

    Been playing with it. For some reason the keypad to set the watch is upside down and sideways, or something like that. When I press the 1 I get 9 and it goes that way all the way around. I did figure it out well enough to set the time but man that's messed up!

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  • Lilygo T-Watch 2020 Arduino Framework

    I made it, wonderful setup, and I learned a LOT from this project! I had no idea it was that easy to mush sketchs together like that with a menu to control them! I can see fun days ahead. I sure wish my wife were still alive to see the things I am planning on making with my EPS32's!

    Very cool software for this neat little timepiece! It was a bit disappointing with the software that was on it, that first time I turned her on, yesterday when it arrived in the mail. Got her from Banggoods USA warehouse still it took a bit more time then it used to when it came overseas from China. Now that it has some decent software in it, it has become quite an attraction. That Startrek setup is wonderful to say the least. Really cool setup and the watch itself looks a bit like an apple watch on steroids The watch is probably better then the apple design as well, you just cannot beat an ESP32 for any job that needs speed and accuracy!

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  • Versatile Volt, Ampere, and Power Meter

    Very nice. I have one of these meters laying around somewhere. I recall I purchased it to be used in a power supply I was building however I became angry that the blasted thing took so long to get here from China, so I went ahead and used a much earlier model with fewer bells and whistles. I never did get around to changing the meters and the one I have installed does a good enough job so in the future box it went. Then when the wife became so very ill, my daughter came to clean the house so the wife could get around with her walker and most of my projects disapeared in a cloud of dust, in a box stored somewhere that only God and my daughter know.

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  • Arduino Thermometer + LCD I2C

    Cool. Many months ago, for some reason known but to God and perhaps that little man who stands beside me all day and watches over my shoulder, I ordered 25 thermistors, half round, have cylindrical. I think I was going to make some sort of instant temp checker for my nieces ghost hunter group or something, but it was one of those China orders that took so very long to arrive that when they did I complely forgot why I ordered them. So I happen to run into my bag of thermistors a couple of days ago and have been building little thermometers of different sorts using the parts that I have available since my wonderful wife fell ill and our income fell very short as her medical bills grow with each and every visit to the specialist who are trying to find out what the hell is making her so very…

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    Cool. Many months ago, for some reason known but to God and perhaps that little man who stands beside me all day and watches over my shoulder, I ordered 25 thermistors, half round, have cylindrical. I think I was going to make some sort of instant temp checker for my nieces ghost hunter group or something, but it was one of those China orders that took so very long to arrive that when they did I complely forgot why I ordered them. So I happen to run into my bag of thermistors a couple of days ago and have been building little thermometers of different sorts using the parts that I have available since my wonderful wife fell ill and our income fell very short as her medical bills grow with each and every visit to the specialist who are trying to find out what the hell is making her so very ill. After 50 years together, I am very frightened of suddenly being alone, so anything to keep my mind off the current situation is so very welcome. Thanks for the project, I will build one tomorow after we meet with her main doctor to go over the results of her tests done at Mayo in Minnesota.

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  • GY-68 BMP180 Barometric Pressure Breakout Board Tutorial With Arduino Uno

    I made the damn thing but the friggin machine won't let me post the damn photo, not my day, then the damn Indian's found my cell # and began their harassment to sell me an extended warantee on a vehicle that sits at the bottom of a canyon in Utah where it came disconnected from my RV and rolled thousands of yards town the mountain, I could just barely see the glint of the little blue Jeep, but that damn Indian wants to sell me warrantee on it!!!!!!!! Anyhow I did make it! I swear to GOD I did! Works good too, I even added the degree F to it for we of the C impaired who live in these United States of America, a rather large nation to say the least, but not recognized by the rest of the world who just know we MUST understand what 18 degrees C is? Serial.print("Temperature: "); …

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    I made the damn thing but the friggin machine won't let me post the damn photo, not my day, then the damn Indian's found my cell # and began their harassment to sell me an extended warantee on a vehicle that sits at the bottom of a canyon in Utah where it came disconnected from my RV and rolled thousands of yards town the mountain, I could just barely see the glint of the little blue Jeep, but that damn Indian wants to sell me warrantee on it!!!!!!!! Anyhow I did make it! I swear to GOD I did! Works good too, I even added the degree F to it for we of the C impaired who live in these United States of America, a rather large nation to say the least, but not recognized by the rest of the world who just know we MUST understand what 18 degrees C is? Serial.print("Temperature: "); Serial.print((int)round(1.8*temperature+32)); Serial.println(" F");

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  • Simple Guide to Setting Time on a DS3231/DS3107/DS1337 Real Time Clock With Arduino UNO

    One thing I did find, those extra header holes have a purpose! I installed headers and instead of running separate wires from the Arduino to the display and to the RTC, I found the one side will allow input, the other side input/output, so you can run one set of wires from the Arduino to the RTC, come out the other side and run directly to the Display. This makes for a much neater setup and makes her easier to mount into some sort of case.

    Thank you so much. I built a little clock out of what was once, well a clock. A tiny computer shaped LCD clock that came with a subscription to a magazine many moons ago. I had it up and working in the orgional build using an UNO, and, as a fellow does, I downsized her to a pro mini to free up my favorite UNO, that went well. Had it set with some program or another when I built it, but I have since changed to a new computer and, well new software and the lot. So here came DST (Why don't we just drop that! The farmers are not gaining anything, they work from dawn to dusk no matter what the damn clock says, I know I grew up doing chores on the home place!) and I attempted to change the hour. What followed were hours of cussing, modifying sketches till their authors would never recognize …

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    Thank you so much. I built a little clock out of what was once, well a clock. A tiny computer shaped LCD clock that came with a subscription to a magazine many moons ago. I had it up and working in the orgional build using an UNO, and, as a fellow does, I downsized her to a pro mini to free up my favorite UNO, that went well. Had it set with some program or another when I built it, but I have since changed to a new computer and, well new software and the lot. So here came DST (Why don't we just drop that! The farmers are not gaining anything, they work from dawn to dusk no matter what the damn clock says, I know I grew up doing chores on the home place!) and I attempted to change the hour. What followed were hours of cussing, modifying sketches till their authors would never recognize them should they see the results, all for nothing! Damn little clock showed ANYTHING but the right time! In frustration, this morning, I did a google and came upon your setup. Well I had tried everything else, why not? Worked like a CHARM! Thank you a million times. Now my grandsons can look at what Grandpa built and think I am a genus not just an old fart with a screwdriver and soldering iron!

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  • HOW TO USE ISD1820 VOICE RECORDER AND PLAYER

    The markings are on the pins. Black or - goes to GND, VCC will be where you hook the red or + wire. This should give you power. Insure you are only giving her 3.3 volts or around there, I hooked a lipo to mine at 4 volts with no harm so there is some overhead I guess. I am using an old phone battery that I simply soldered some wire to and put a terminal on it so it can plug over those two pins on the device.

    I have had this for a few years now. I built the kit and found it fun for about 3 minutes then put it in a box. I found it again yesterday and pulled it out, the recording was still there, it has now been replaced by a cough just for a change. I am considering replacing the microphone with an input jack so I can simply access the onboard amp. My kit is a bit older and came with a nice LM386 amplifier built on the board so it can get some great sound from a 1 channel source such as a radio or perhaps just the microphone, however longer speaker wires would be in order as the feedback is horrid with the microphone and speaker just inches apart. Mine came with about 3 inches of hookup wire for the speaker.

    To the Ground, of course.

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  • Digispark DIY: the Smallest USB Arduino

    My wonderful wife of 50 plus years developed glucoma some five years ago. She needs to self administer eye drops in her eyes every morning and at bedtime. After putting in the drops she needs to keep her eyes closed for a designated period of time, each medicne has a different time requirement. So, since her eyes are closed she needed something to let her know when the time was up. I built her count down timers using the attiny85 by digispark, I used 4 digit 7 segment displays, and a buzzer so the time is displayed and it plays a little tune when it is safe for her to open her eyes. She loves them, I powered them with 9 volt batteries, one battery lasts nearly a year as it takes very little juice to run the timers. They are mounted in very small project boxes and I put a nice toggle s…

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    My wonderful wife of 50 plus years developed glucoma some five years ago. She needs to self administer eye drops in her eyes every morning and at bedtime. After putting in the drops she needs to keep her eyes closed for a designated period of time, each medicne has a different time requirement. So, since her eyes are closed she needed something to let her know when the time was up. I built her count down timers using the attiny85 by digispark, I used 4 digit 7 segment displays, and a buzzer so the time is displayed and it plays a little tune when it is safe for her to open her eyes. She loves them, I powered them with 9 volt batteries, one battery lasts nearly a year as it takes very little juice to run the timers. They are mounted in very small project boxes and I put a nice toggle switch on each device. Along the same line, I built another for my car because I am required to run it for 5 minutes every time I gas up my motor home, the car is towed behind the rig. I start the car, and let her run with the timer in the windshield so I can work around the rig while it runs. These things are worth their weight in gold and a blast to build simple devices with.

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  • OLED I2c Display With Arduino

    I burned one of these up years ago, and tore it apart. The one I had was a yellow top over blue bottom. When pulled apart, the color was done using pretty much gel paper to color the white true color of the OLED display..

    Years ago I worked in theatrical lighting and stage sound. We used Gel Paper to change the color of spot lights as well as floods for effective presentations. A short time ago, my wife complained that one of the clock kits I built for fun was to bright, so I did a quick search for this on Ebay and found it readily available. I ordered a small square, about 1 foot square, and cut a small piece from a corner, I added that to the face of the clock and it lowered the brightness as well as changing the color to a much deeper green (I ordered green gel paper)

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  • JerryE4 made the instructable Arduino GPS Oled
    Arduino GPS Oled

    I am building a replica Nextgen style tricorder, and decided to use this particular setup for the GPS, I think I will use a simple clock module for the time but may allow the time function to be available with a touch on the menu touch screen. Thanks a million, this is a bit of work I don't have to build myself, always nice to find a shortcut online.m A friend told me that before you sit down to begin coding always do a search, chances are someone else had the idea before you did and has already come up with the solution. This can speed your productivity so long as you remember to give credit where credit is due, thus I always include credit in the comments in the code. My home has a steel roof and full aluminum wrap for part of the insulation against the powerful weather that we have …

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    I am building a replica Nextgen style tricorder, and decided to use this particular setup for the GPS, I think I will use a simple clock module for the time but may allow the time function to be available with a touch on the menu touch screen. Thanks a million, this is a bit of work I don't have to build myself, always nice to find a shortcut online.m A friend told me that before you sit down to begin coding always do a search, chances are someone else had the idea before you did and has already come up with the solution. This can speed your productivity so long as you remember to give credit where credit is due, thus I always include credit in the comments in the code. My home has a steel roof and full aluminum wrap for part of the insulation against the powerful weather that we have here in the Dakota's so there is no radio reception available in the house. I had to take my device outdoors for her to find the sattalites. We can get cell reception but we are only about a mile and a half from the big tower that serves this part of the county.

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  • Funny, it was not shorted out! The power wires I had attached had a fault, I dug it out today, after finding my multi-meter had bit the big one, and instead of trying to put batteries in her I simply plugged in the Nano that is soldered onto the board, and she came to life. A bit of messing with my multi-turn reostat, and I am back in business. She is a bit worse for wear, apparnetly she has had somthing heavy dropped on the screen as it has some scars but I can still read the Ohms quite well. Great project, again thanks a million a very useful device indeed.

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  • Watch a bit of Star Trek the origional series, the Theramin is used in the intro music.

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  • Easiest way would be to replace the Arduino and NRF with an ESP8266, ready made internet interface and a much more powerful processor.

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  • I am planning on using this as a base to build my little Retro style FM/XM radio system that will sit on a shelf in our Class A motor home, which we spend the winters living in down in Arizona (wow a lot of in's in that sentence.) I have removed the speakers and amp from an old set of PC Speakers, the amp works good and the speakers sound great when removed from that horrid plastic shell that the maker put them in. I plan on building a nice wooden radio case for the set, and use the digital output as outline in this project, plus mount the small XM receiver in the same case, perhaps side by side with the FM display. I also plan to integrate a small bluetooth receiver that I had built into another amp that went bad on me a few years back, I think that can be done with ease looking at the…

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    I am planning on using this as a base to build my little Retro style FM/XM radio system that will sit on a shelf in our Class A motor home, which we spend the winters living in down in Arizona (wow a lot of in's in that sentence.) I have removed the speakers and amp from an old set of PC Speakers, the amp works good and the speakers sound great when removed from that horrid plastic shell that the maker put them in. I plan on building a nice wooden radio case for the set, and use the digital output as outline in this project, plus mount the small XM receiver in the same case, perhaps side by side with the FM display. I also plan to integrate a small bluetooth receiver that I had built into another amp that went bad on me a few years back, I think that can be done with ease looking at the build of the amp. Nice thing about the Amp, it comes with a 120 to 9 volt transformer, so I think I will tap off that and build a 5 volt supply to run the arduino, or perhaps just rectify it and run it off the 9 volts, haven't decided yet, I know most of the Arduino's can run off 9 volts if you put it to the proper pins, but no, I think I will step that down to 5 volts first just to be careful. I think I will do it on a Nano, since I have a surplus of them and they are quite small on their own right. Yes this does look to be a fun project, I can combine my love of electronics, with my love of woodworking to make a thing of beauty that can serve me for years. I hope..... Or maybe I will just build a radio.....

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  • Oh on a side note, those capacitors can hold quite a charge, it is best to short them out before doing any testing,least you get a bit of a surprise when you hook your meter across them.

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  • JerryE4 commented on tutdude98's instructable Portable Power Supply

    Greetings - I have made several of these type power supplies. I have one step up that has 3 18650;s however I always use the built in reostats. Perhaps I will upgrade them with external to make adjustments easier, however mine work fine. I have anothr with 6 18650's that I use to power my 50 Watt LED lights and other high amperage devices. Also built one step down with 3 18650's for lower power projects, mostly 5 volt as many of my devices wish that voltage, the other is usually set to 12 volts. And much like your project I have one that is hooked to an old HP Printer power pack that has 32 volt out as well as 5 volt out. I run that into a box with a step down for the 32 as well as straight 5 volt for those devices. I use that where I need a constant supply based on mains voltage.

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