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  • FlaredElectronics followed GreatScottLab3 weeks ago
      • DIY Raspberry Pi Zero Handheld Game Console
      • DIY Buck/Boost Converter (Flyback)
      • Make your own Motorized Camera Slider
  • Use Your Tablet As Raspberry Pi Screen

    Add "sudo" in front of that command. I hate Linux people for failing to include this step in every guide on the internet. The people I point it out to don't do it on purpose as a "noob trap" I don't find it funny, and there are times when you should not use Sudo and times when you have to, leaving it out throws everyone off and forces them to guess. Just s heads up you might see this problem 100 times over again, so keep an eye out for it

    Sorry to scrutinize, but I feel the title is a little offsetting from the subject matter. With the HDMI or serial interface even if something goes wrong in software, you still see it. VNC isn't a monitor, its a type of terminal service. I would suggest "How to setup your Raspberry Pi Project to remotely view, and use with a Tablet or SmartPhone." It still requires that someone configure SSH, Switch it to command line login, and configure networking before you can start the Instructable. 90% of people will use HDMI for this so that throws the title off. Another idea would be to include in your guide, how to configure a default SD image so you never need to do what I mentioned, therefore never needing the Monitor, keyboard, mouse, and seeking the IP in the first place. To get ar...see more »Sorry to scrutinize, but I feel the title is a little offsetting from the subject matter. With the HDMI or serial interface even if something goes wrong in software, you still see it. VNC isn't a monitor, its a type of terminal service. I would suggest "How to setup your Raspberry Pi Project to remotely view, and use with a Tablet or SmartPhone." It still requires that someone configure SSH, Switch it to command line login, and configure networking before you can start the Instructable. 90% of people will use HDMI for this so that throws the title off. Another idea would be to include in your guide, how to configure a default SD image so you never need to do what I mentioned, therefore never needing the Monitor, keyboard, mouse, and seeking the IP in the first place. To get around needing the IP, have it announce the host name via LocalDNS, and on first command login, run Sudo raspi-config and let the user decide what to call it.

    He brings up a great pointGood idea to include in the guide, how to change this. Leaving it on port 5900 is asking to be hacked since Pi VNC still doesn't support 256 bit encryption and may never.

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  • FlaredElectronics followed go_cool, akurk and BramMylemans2 months ago
  • Personal, portable, lightweight, air conditioner: An inexpensive and effective DIY project

    An idea would be to poke some small holes in your bottom milk carton and put the unit on a concave plate. (Drip pan). The water will work against your ice in the long run. Also putting the ice carton on top and air carton on bottom will allow you to take advantage of the natural down-flow of cold air/water/endothermic reactions. I made about 7 versions of a very similar project, so I can respect it. I had many people tell me it was worthless, and I would never cool anything with it. Well to that a say, killing a child's creativity and drive for science is a crime worse than murder, because it is murder without the dying part....( I didn't let it get to me, but between 10-15 years old, it can put a chip in your shoulder)Here are my material and revisionsVersion 1: 10 years old, begging f...see more »An idea would be to poke some small holes in your bottom milk carton and put the unit on a concave plate. (Drip pan). The water will work against your ice in the long run. Also putting the ice carton on top and air carton on bottom will allow you to take advantage of the natural down-flow of cold air/water/endothermic reactions. I made about 7 versions of a very similar project, so I can respect it. I had many people tell me it was worthless, and I would never cool anything with it. Well to that a say, killing a child's creativity and drive for science is a crime worse than murder, because it is murder without the dying part....( I didn't let it get to me, but between 10-15 years old, it can put a chip in your shoulder)Here are my material and revisionsVersion 1: 10 years old, begging for the parents to turn on the A/C.......Plywood box, inside a Tupperware container filled with ice, Fan that flowed downwards from the top of the box. (Worked when swamp effect was possible, but was more that push I needed to pursue the whole project and keep going)Version 2-3-4-5: 10 years old to 12 years old - Clear acrylic box with the bottom being a large CPUfan heatsink, ice on top, fan sucking air from heatsink. (This worked well, but it took adjusting the fan, redoing silicon sealant, and fatherly assistance to build/modify. Sometimes that is great, but it does teach you to use more exotic materials that adds build time, and scheduling to things)Version 6: High-Tech | 16 years old - So I revived the project and abandoned the ice for a thermal electric junction plate or TEC, metal water reservoir (on top/hotside), and a small heatsink fan on the bottom. So you put ice in the top metal pan (no holes) and the TEC moves the cool properties across the unit to the cold heatsink till the ice melts. Then it continues to do so after the water is at room temp (this is the improvement you get here), till the water was hot. The next stage was the water evaporating till it was gone. (if you didn't stop it at this point it would eventually fail). So across 3 states Ice, water, gas it worked and used all the previous failures/revisions to create a smooth cooling curve across the graph of it working. This took cooling about 10 sq feet to cooling about 100 sq feet, but traded off needing about 5 amps at 12v (fan and TEC) to do so. Version 7: ? not sure on age: added a basic stamp and later a 12v thermostat/solid state relay to prevent from running without anything in the top and possibly catching fire. If it got to 220F, it turned off the relay, and lit up a red LED warning you it is off. So my version of the idea took a few turns, but I outgrew it when I no longer had to beg my parents to turn on the AC because I moved into the basement. Funny how life solves it own problems and you never get it another thought. Hopefully this was worth reading......Anyway, negatives aside, if you had something like a can (tin/aluminium/steel) to contain the ice and drip into a pan across the air carton, the can gets cold, and prevents the hot air from attempting to steal your lower pressure cold area as to sweep it away. The Dripping adds it own cooling effect by reference to a swamp cooler. (This won't work in humid places like beaches, but will get the water away from the ice.) I say keep on the path your on, and keep the parts of the project renewable/recyclable common parts. Thank you for helping me think of one of my first inspirations for being an engineer and sharing your Instructable. I hope you will continue showing that things are worth pursuing, even if they are considered futile, because the pursuit always bears insiration and knowledge.

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  • FlaredElectronics followed rjkorn11 months ago