we are sorry for having a critical tone! we didn't understand! often we daydream exotic constructions, obviously an off-the-shelf-microbot would be 2cms wide instead of 0.5cms wide, this is obvious. it's a really great robot idea! it really inspires the reader to try making small things and to realize that they can!
On Sun, Sep 1, 2024 at 4:03 PM Undescribed Horrific Abuse, One Victim & Survivor of Many <[email protected]> wrote: > > > ok we have big complaint, but often when mentioning new terms this > > body websearches the term after posting it > > sometimes i used it wrong often i used it right > > > > i websearched microbots and found this medium article: > > https://slothswrites.medium.com/making-own-microbots-ed153ea8f7d3 > > about building your own microbot (traditionally size is less than a > > centimeter, down to microns) O_o and i am wondering, is this a fake > > article? > > it's like almost believable. it uses off-the-shelf parts and no > > manufacturing o_O . > > > > basically this is probably a fake medium article. but it coudl be > > real. they might just be building a really big microbot. y'know? > > > > some of these fake articles are kind of like chatting with somebody > > who's lying, you can treat what they're saying as true but it often > > involves doing a lot of work yourself to make it so. > > review of is-this-a-fake-medium-article > > > The twist in this project is rather than controlling the bots with the > > neural transmitter we will let them travel and connect as they want. > > This ain’t sci-fi this is an easier cheaper, and least complex design, > > So let’s start making our super cool micro bots on budget, First, we > > are just making the bots that can sense where the fellow bots are, > > and reach them. Later when adding computer vision and AI its > > application will be limitless. > > - Author states the twist is that the bots are not neurally controlled > - Author does not state that the twist is that the bots are not > micro-sized, or do not have AI or computer vision > > > Starting with selecting the components, we need a small and > > usable microcontroller that would be AT tiny 85. > > I found a datasheet for the attiny85 at > https://www.snapeda.com/parts/ATTINY85-20PU/Microchip/datasheet/ and > the chip package in the datashet is about 5 mm wide. So this could be > the brains of a large microbot ... if the power source and actuators > are all bundled under the chip! > > > AT tiny is having 6 input output pins which is exactly how much we want, > > moving further we are adding servo motors for the robot to travel, the next > > part is a Bluetooth module, which we are using to find the distance > > between the robots, if you are using a development board in which you > > get an embedded Bluetooth module then you don’t need any external > > module for that, > > O_o is a bluetooth module really the way to do ranging here? it just > sounds really big and overcomplicated for this to me. but it is > premade ! > I guess you would pair and measure the signal dB to range. Maybe this > is the way to do it nowadays i don't know! > I'm just worried more chips will make it bigger :s :s it's already 0.5 > cm :s (i would use linear components here, i'm old) > > It says servo motors, all the servo motors I have seen are really > really huge, but maybe not as big as batteries. I would not use servo > motors here. > Maybe single-electromagnet actuators or "muscle wires" ! > > I bet you can find really tiny servo motors on the internet though. > It's just not what I think of at first. > > I'm worried the development board will definitely be overscale but > hopefully I am wrong. Let's look for it! > > There are a lot of development boards for the attiny85, most have a > USB plug on the board, here's one for making wearables at > https://www.digikey.com/en/products/detail/sparkfun-electronics/1568-1450-ND/5684347 > . It's 8x16 mm. So we're pushing the size up to 2cm here but it's > still pretty small! > > I didn't search for a board with a bluetooth module. > > > Now the main component that will give the superpower to our > > microbot which was shown in the movie that is bots getting > > attach for that we need electromagnets, there are few electromagnet > > modules out in the market which you can use according to your budget. > > Electromagnets are really tiny, but they'll need enough combined force > to lift the weight of the bot if they're going to attach multiple bots > together. > > The author has an image embedded here that doesn't look strongly > related to the content, it looks maybe like two plain metal objects > stuck on a magnet demonstrating magnetism. > > > Now moving further toward calibration connection and schematics. > > For coding > > - pair the Bluetooth modules via hard coding > > - Use the RSSI function and store its value in a variable, > > - After that code for the servo motors > > - Create two functions that allow bots to move forward and backward > > - You can also add the motions for the motors to turn left and right. > > - Calibrate the motors accordingly > > - Now check the value of RSSI stored in the variable > > - Check the RSSI value when the bots are 5–10 CMs away from each other > > - Use the value of as a base value and if the value changes and increases > > code the robot to move accordingly and come back closer to the fellow bot > > And when the fellow bot is in the range turn on the electromagnet so that > > stick together. > > This is maybe revealing, the author is pretty new to development. The > article is probably just an idea :) > > > For schematics and circuits. > > - Place the Electromagnet at the center of the bot. > > - place the servo at the ends of the servo horns facing outside. > > - Use a Mini breadboard or the zero PCB and soldering to complete the > > connection of the components. > > - Upload the code and use copper tape and tape the circuit to avoid any > > harm from the EMF of the electromagnet. > > - One can use Insulating tape and then wrap the foil over it so the foil > > will absorb as much > > as it can and then the rest of the un absorbs EMF is reflected by the > > insulating tape > > After completion of the circuiting and connections add 3D printed or > > handcrafted shafts for the legs of our bot and give our bot a body > > It's cool to learn I could bundle a microcontroller in under 2cm (or > even 1)! The issues of how to package power and the servos are not > addressed, as well as how to use the servos to produce locomotion -- > but I suppose a normal servo with horns attached would be able to use > the horns like wheels or legs to move around ! Anyway they said to 3d > print legs to add to it. > > > When done with this Ta Daa! your Microbots are ready to connect the > > batteries, > > Keep the at distances and watch them coming closer > > Ok so we have an ATTiny85 development board, batteries, servos > bluetooth module used for interbot communication > > hrm > > I'm guessing this is a real article where the author has not tried out > their own idea yet. > > early websearch results show there are some 8mmx4mm stepper motors on > amazon, > https://www.amazon.com/Acxico-2-Phase-Ultra-Tiny-Precision-Stepper/dp/B09CTT8Z2G > . this reddit link shows tiny servos but the highest rank comment says > things that aren't servos are tinier: > https://www.reddit.com/r/Motors/comments/1138tw4/the_absolute_smallest_servo/ > . the servo linked is 20x6x6mm. the commentor says to use 'magnetic > actuators' instead. > > but y'know i guess mouse-sized robots are a little more interesting > than ant-sized robots anyway > you just have to buy or make good actuators for them! > > ohhhh wait what about the power supply??? > i guess you'd find a tiny lithium battery O_O they're basically any size huh
