I also have the policy of ordering at least double the numbers that I need. A set of ceramics (a range of 10p-4♗ or so with extra 100 nF ones as those you need all the time for filtering), and a set of electrolytics or tantalum (1♟-470♟ covers most use cases). Now you're at it, it's maybe a good idea to get similar kits of capacitors. And if you find you really need a lot of a specific value, order more of those as you go. Such a set will last you for VERY long and you will always have the correct value at hand (or be able to create it with two parallel resistors if you really need a specific value). Those bags cost the equivalent of about 1 Euro each.Īll 1/4W resistors, for most applications that's more than enough. On top of that I have a 1000 pcs bag of 10k (used all the time for pull-up resistor and so), and a similar bag of 330Ω resistors (using those all the time for LEDs - so they take about 5 mA at 3.3V supply). Great value for money, and a great range of resistors, it ranges from 10Ω to 1M or so. You'll be able to find similar sets on Ebay, Aliexpress, Amazon, etc. Multimeter also useful for some on-spot operational measurements.įor critical measurements I use another multimeter, which is more expensive.Ī while back I bought a kit of 30 values, 20 pcs of each, 1% tolerance for the equivalent 3-4 Euro or so off Taobao. To measure resistors I use this one (faster than reading color codes or staring on very small figures of small strips well sometime I will classify them - maybe :-)). But is light, easy to use and no cry if damaged. Certainly, the accuracy is acceptable at best. But the negative impact is that they are many.Īnother thing I found useful is a 4 bucks multimeter. I also brought an "assortment" of resistors of general use (some 600 pieces, in double decades), ending in filling my boxes with values I think I will use - maybe - in one year or more from now. So i got some 100 pcs 220 Ohm comparing to only few above 10K in each value. And I need more values in the lower end (10-600 Ohm) comparing to higher end (above 600 Ohm). In my case lower values (up to 1 K) are more usual. Myself I am into LEDs, sensors, renewable energy - so far. But i keep experimenting with LED and their V values. I usually take 220R or 1k for each project (i mean, i have 4 values in my kit soi dont have many options hah). That'll quickly wear out your typical 1.7 - 2.1 V red, green or yellow LEDs. I will stock up some basic values and figure out what i need. Also i checked aliexpress which i use for my regular online shopping, there are a lot of good offfers when you buy as a kit. I thought the same but i am noobie when it comes to this. In general use 100s with LEDs to make them extremely bright, 1000 if they should be quite dim, and 10000 to pull pin voltages up or down for switches, sensors, communication lines, etc. You can get double the resistance by putting two in series, or half by paralleling them. These will work with most simple Arduino projects. I would start with some 100, 1000, 10000 resistors. Once you get the feel for what you need, get those. Like, who would ever need a 90K resistor!? So start with just a few and combine them to get different values. When you are starting out, the plethora of resistance values will seem extreme. I am not kind of person that is willing to take a walk to nearest shop (which is 20 mins by bus) every time when i need something and that thing costs pennies. But there are around 100 values in my shop and buying 20 of each would cost me 30e. Or should i buy every possible value there is, because they are cheap and figure out in future what i need. When i start to learn how to solder and stuff, i will buy more. I wanna stock up some resistors of different values and i need to decide what values do i need most ? I am not going to solder in near future so i would buy 10-20 of most required value just to have it around. By simple, i mean you use lot of LED, sensors and stuff that can be found in Starter kits. So, i was wondering what do you think about what Ohms values of resistors do i need most during simple projects. Usually Arduino kits comes with 220ohms, 1k,10,12k etc. Since i started using arduino (''learning'' to be specific), i noticed for every project you need to use resistors (at least in projects when i used LED and potentiometer).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |