No, I wasn't saying get one,
This kit you mention, is assembled except for the case. i.e. no soldering required, as was the oscilloscope I bought. Not real kits where one soldiers components in place. One just has to figure out how to assemble the case. That's why I mentioned it.
The link to the tester I recommended was the actual link I used to order mine. It requires no assembly either, but there's no case. I simply wired up three 12" lengths of wire attached to alligator clips to make connecting them to components a little easier.
Drive safely and hope the Mega and the LM443Z chip you needed, are there.
Take a look at circuito, run the ~40 second video, and try it out by running the app. As you add components, you will instantly get a detailed bill of materials, wiring guide and test code for your electronic circuit. I've used this several times and I like everything except the limited number of components.
Got those! Plus the powered USB3 hub with the Getting Started with Sketches book for the Arduino and my car manual came in from Haynes too.
Did you see this from an earlier post:
Glad to hear it. This should keep you busy for awhile, LOLGot a project for the weekend and didn't pick up any vodka.
LOL. Wait until you've done it for 10 years
Little icy on the highway and in town it's like a skating rink by
Cool project, whats the laser for? Are those shift registers on the board under your yellow screen?LOL. Wait until you've done it for 10 years
Here's a picture of one of my IC/sensor unit test hardware platforms. The Raspberry Pi runs the unit tests for the low-and-high level software I've written for each piece of hardware attached, including the Pi itself. There are several ICs (ADC, DAC, digital potentiometer, Arduino Metro, an ATMega328P, several various OLED displays, RF serial transceivers, stepper motor, GPIO expanders etc. The tests run any time I make a single change to any of the various software modules. This ensures that I catch any problems that crop up while updating or adding features to the software.
The shadow boxes I made to store the platform have plexiglass windows, but they're not in place here. There's also a pine cap like the sides that are removed as well.
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The laser sits atop of the stepper motor. In that three-sided wood wall surrounding it are three photo-resistors (back from the face of the wood a half inch to keep it dark), one on each side, and one at the top. One of the tests swings the stepper from top, to left, to right, then top again. At each position, I take an analog measurement of the light intensity at the photo-resistor. When the laser is pointed dead-on, it'll be at peak intensity, and that's how I confirm that the stepper motor is at exactly the proper position for the number of steps the software told it to turn.
Yes. Essentially, in very general terms, you delete (by overwriting) the old sketch when you upload a new one.
Good work on getting arduino IDE installed. That's kinda meticulous but you'll not have to do again. Also, if you loaded the "blink" sketch, everytime you give power to the esp, the blink sketch will run. If you want it to stop then you'd load up a blank sketch or a new sketch. The esp runs whatever its been sent as long as it has power. If you want it to do something else then send it something else to loop, ie a blank sketch will loop nothing lol. You may need to have a few default lines, ie void setup () - void loop (), but you may not, I've never loaded a blank sketch, just loaded new sketches over old sketches.OK, I think I have my little circuit all set up properly. Tried testing for continuity and got nothing but when I switched to diode test I got a reading of 1.266v so something's getting thru.
I drew it out by hand triple checking what I laid out on the breadboard and if it looks good the next step is figuring out how to get it soldered onto the PCB which has a different pattern of connections.
Hoping the professors give me a pass for my efforts and any constructive criticism is encouraged!
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Got the Arduino set up with it's drivers and using the Sketch program played around with the timing of that annoying onboard LED then set time on at 1 millisecond and time off at 100,000 so I don't even see the blink when it happens. Programs like that can just be deleted off the onboard chip right?
On my way. Looks like a bumpy road ahead. lol
Clean layout, @spek9. Are you an electronics teacher or something?
Sounds cumbersome, isn't there a better way? How is your Pi connected to your pc? wired or wireless? There is a way to transfer the files back and forth between the two without emailing. I use RealVNC.
You're not alone there pal!
Exactly!
I'm gonna check it out in more detail in a minute.
What is your power source? Do I see 1-40 Vdc? Did you power it up while on the breadboard?
I pass you just for the effort... did I miss it or did you explain what this circuit is for? Especially in relation to the cultivation of cannabis...Hoping the professors give me a pass for my efforts and any constructive criticism is encouraged!
Cool and funny, the "set time on at 1 millisecond and time off at 100,000 so I don't even see the blink" part, at the same time. No worries with deletion, newer overwrites older.
Great write up @spek9. Btw, are you keeping a "grow log" @OldMedUser?
Good catches @ChiefRunningPhist, I think. Let me look again.
No. I've just been into electronics for a very long time. I used to be a residential electrician, and I'm just good with all things electrical and DIY.
Sounds like someone that might understand some of my programs. Real messes, but what's there, is working 90% of the time. The Pi hangs occasionally due to the Node-RED's display staying on all the time, but that's a Chromium problem I believe and something in my Python code that, under certain circumstances, causes the exhaust fan to come on while the CO2 is on. I really banged them out.
Very cool. I do the same things, only not at the component level. No more than I have too. There are sensors, modules, relays ( both coil and ss types) and wifi enabled SOCs and Pis, already built and assembled in neat little 5Vdc or 3.3Vdc packages, like Legos, waiting to be assembled.
Some things I do when I need a quick board are:
You can add an sd card really easily with only a few resistors dividers to change the 5v to 3v and a zener diode to provide a 3.3v supply. 4MB should be fine if you just store the data you need and generate the table on the fly (see below). It also might be easier to just store the data you need rather than the whole chart; in my app a weeks worth of temp and humidity measurements from one sensor with one point for every five minutes takes up less than 4kB.
HTML is static content, to display dynamic content you would probably need java, javascript, or maybe php. If you really want to store the whole chart then you could run a php server and use prebuilt libraries to just display the chart. Your code would only really consist of adding data to the file. Alternatively you could just provide the data and let the user display it (through a static web page with javascript - I think javascript would be enough for your purposes).
It's just backup. If there's a brownout or some sort of program crash then the fans keep running and the lights stay on/off as required. (edit: see TimeZone's comment about the pi hanging sometimes) Basically I just want to move two clicky timers, three switches, two potentiometers, three thermometers (12 aaa batteries a year!) and one fan controller all to one box. Having it be able to adjust settings for me is icing on the cake.
Do you think you could give a recommendation on an oscilloscope that I can connect with a computer and use for fast (~2MHz signals)? I actually have one of those $20 one which claims it will read a 1MHz signal but I can't get the trigger to display it. I used to have one of the better handheld units but I don't want to spend $400 on a new one.
This is fucking genius! I currently have parts in loose baggies (one per part #) organized into bags (one per device type and related devices eg the microcontroller bag has shift registers, dacs and crystals). I might have to upgrade now because it's a nightmare sometimes.