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@AlperenAkkuncu

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☪️️🇹🇷 (94:7) The moment you are freed of one task work on. Z🤍

Kahramanmaraş
https://t.co/BMXIODJKPJ
Joined December 2021
Don't wanna be here? Send us removal request.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
Finally assembled and took some pictures of the new #PlainDAQ . If my job allows me (😮‍💨) I will start to work on them on a regular basis Switched to @MicrochipMakes MCP4911 DAC because of the availability. #PCB #electronics ✅Sub for the updates✅
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
@hedgefundguy3 Çabasını takdir ediyorum. Girişimci öldüm diyene kadar devam eder.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
Hello people on Twitter (still not saying X), I need help with something, specifically I need serious/honest feedback on something. Some of you might now that I started working on a project called PlainDAQ. It's a 12-bit 4-channel DAQ. It's not a crazy/unique. In fact, I'm
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
8 months
Impossibly minimal setup for hardware design 😄😄
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
5 months
I hired a firmware developer. I set up a laptop for him to access the hardware through debugger over TeamViewer I don't know how it's going to go, but if it makes my workload lighter, I call it a win Does anyone do that? Is there a faster and better way than using TeamViewer?
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
6 months
One of clients hired a another designer to review the schematics and the layout of the PCB. Here what he said about the layout 👇👇 I am truly flattered. 😆
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
9 months
This is my favorite book on analog design. It's not very well known, but I think it's amazing. What's your favorite book on analog design or electronics in general?
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 month
After working real hard for a year. I am proud to announce that I just upgraded from a kitchen chair to a proper super fancy office chair. Thanks KiCAD.
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@juanjovn
Juanjo Valiño
@juanjovn
1 month
“You’ve got to be mad paying $1.5k for a chair” You’ve got to be mad putting your 1-unit spine 8 hours/day on a $200 chair.
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Alperen
@AlperenAkkuncu
7 months
I was working on this very complicated board a year ago. It's one of the first jobs I got. It took weeks to finish I got scammed, didnt get paid. 😆 I acquired a skill after this incident which is to distinguish between people who value the work and people who are cheap scammers
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Alperen
@AlperenAkkuncu
8 months
This is the main fuse they use in a 12kW heat pump unit. Are they cheaping out on this, or is it normal? It's a $4k+ unit...
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Alperen
@AlperenAkkuncu
2 months
@martinmbauer Yeah... Cocaine and coffee are totally the same right? Got you...
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Alperen
@AlperenAkkuncu
10 months
That's how 60 MHz clock looks on a 100 MHz oscilloscope.
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Alperen
@AlperenAkkuncu
2 years
How do you name your UART nets? Probably many people use the first method, what do you think about the last one?
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Alperen
@AlperenAkkuncu
1 year
I have a scope now. Rigol distrubutor in Turkey was very nice. He sent me the scope and let me pay later because he knew my situation.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
✅New PCB. ✅New background.
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Alperen
@AlperenAkkuncu
6 months
I feel slightly better when layout sort of matches the schematic.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
4 months
I bought a new power supply. It's a Rigol DP932U. It's much longer and bigger than my previous power supply.
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Alperen
@AlperenAkkuncu
3 months
@taylanyildiz Kedi olur, köpek olmaz.
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Alperen
@AlperenAkkuncu
2 years
It's not the first time I make this mistake 😑
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
Today, it's been exactly 3 months since the earthquake. I've been in between places since, but today I am staying and working in a place that I can call home. I am thankful and grateful. My current setup needs a lot of things, but that's a good start 😀
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
These are on of the most complicated designs that I've made with my laptop. 💻 I've never made it any money 💰 because I've failed to commercialize them, but I am still proud of them 😊 Maybe one day I can afford to hire a few people and put them on the market .
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Alperen
@AlperenAkkuncu
1 year
What's in the box? 😀😀
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
10 months
Finally fixed it! The problem was the FIFO. The samples are 16-bit and the fifo outputs 8-bit sliced bytes. Basically, FIFO was handling the byte slicing, but for some reason it was outputting incorrect values. I implemented the byte slicing myself and the error went away.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
10 months
I am back to investigating this weird error. I halved the clock, nothing changed. I halved the clock again, nothing changed. I'm still looking into this. A lot of people suggested me to look into the bitstream around the spikes, that's what I am going to do now. Let's go!
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Alperen
@AlperenAkkuncu
2 years
Don't worry it's not that complicated.😬
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Alperen
@AlperenAkkuncu
8 months
Google reminded me of this monstrosity. If I remember correctly, I was experimenting with very low currents and decided that the best way to prevent leakage currents was air wiring everything 😅😅 I don't remember the results...
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Alperen
@AlperenAkkuncu
1 year
I really enjoy my phone's optical zoom. It helps me check the pins for shorts after I solder a component.
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Alperen
@AlperenAkkuncu
1 year
I feel stupid
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Alperen
@AlperenAkkuncu
1 year
Dua edin çok çaresizim, annem babam enkaz altinda.
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Alperen
@AlperenAkkuncu
1 year
I have finished an open-source PCB design for a US-based client. I expanded an existing ESP32 based 6-channel energy meter design to 24-channel. I offer PCB design and firmware development services, you may find me on @Upwork or reach me through DMs
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Alperen
@AlperenAkkuncu
4 months
Is there a good way to strip enameled copper wires? I use it for fixing stuff, I just need to expose the tip so that I can solder. It's got a very thin layer of plastic. It's kind of difficult to "peel". Soldering iron doesn't burn through it, which is surprising
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Alperen
@AlperenAkkuncu
8 months
This is ridiculous, but useful.
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Alperen
@AlperenAkkuncu
1 month
I woke up to a nasty bug in my power supply. Even thought my power supply outputs the 24V when turn the output on, it still says "0V" on the screen.
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Alperen
@AlperenAkkuncu
1 year
Fresh soldering sponge 🧽
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Alperen
@AlperenAkkuncu
10 months
It's been ages since the last time I programmed an FPGA. Feeling very rusty in VHDL.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
I wanted to try something different and went with efinix FPGAs. They have a great stock, and their rep in Türkiye was really communicative and helpful. I am very rusty in VHDL, but I think I can pull it off 😃😃
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Alperen
@AlperenAkkuncu
8 months
This wasn't a good idea. Given that LM317 has 3V drop out rating. It still outputs 2.8V and everything is working somehow :)
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Alperen
@AlperenAkkuncu
1 month
@canturaldeu Domestic.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
My current setup 😄😄
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
Finally, I got myself a scientific casio calculator. For the things that I do, the textbook view is very useful. It's much better than any overpriced TI crap imo.
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Alperen
@AlperenAkkuncu
10 months
Well, it's bigger than I expected, but it's much better than the old setup that's for sure. I have to work in the cable management as well. 😃
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
10 months
Had to drop everything I am doing because my desk I ordered going to arrive in a few hours. Hopefully, the new place I'd going ti be great.
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Alperen
@AlperenAkkuncu
1 year
Another coding night.
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Alperen
@AlperenAkkuncu
2 years
Working on my first high power design. I hope I don't blow something up 😬😬😬😬
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
6 months
I understand why some people don't like it. Here is another one 👇👇
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
6 months
I feel slightly better when layout sort of matches the schematic.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
I like symmetrical dual opamp packages. It makes the layout look better Here are two examples of differential amplifier one with symmetrical and one with a regular package. I tried to keep rotations the same. Non-symmetrical Symmetrical
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
@onur_gurel_v2 Güvenlikli 5 + 1 10k 😀😀😀 Abartmayın o kadar da değil.
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Alperen
@AlperenAkkuncu
11 months
So there is no way to tell where the cathode is?
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Alperen
@AlperenAkkuncu
3 months
Mine has this issue as well I get about 7V peak to peak across 120 ohm resistor. I doubt it is some sort of electromagnetic pick up because the load resistance is very low.
@ghidraninja
stacksmashing
@ghidraninja
4 months
@sad_electronics @AlperenAkkuncu
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Alperen
@AlperenAkkuncu
1 year
Never ever do this.
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Alperen
@AlperenAkkuncu
1 year
It's a DG922 100MHz function generator. I finally got time to play with it. Slowly building back the lab. 😃
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
What's in the box? 😀😀
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Alperen
@AlperenAkkuncu
1 year
Finally finished it. 🟢Removed the raspberry pi's logo 🟢Added a few test points. 🟢Added two LEDs for debugging. 🟢Minor layout changes. I am kind of bored of developing PCBs, I want to develop some firmware. Let's hope that it all goes well. #PlainDAQ @PCBWayOfficial
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
It's been a while... (almost 3 months) since the last time I worked on the #PlainDAQ It's almost done! I tried to place the components in a way that it looks cool. I am not sure if I succeeded. What do you think? Subscribe 👇👇
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Alperen
@AlperenAkkuncu
9 months
Had to bodge... I don't like it, but I need to get it done.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
Which one are you? #PCB #electronics
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Alperen
@AlperenAkkuncu
2 months
@gazetesozcu 500tl. Sadece ona harcanan mesai en az 3k
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Alperen
@AlperenAkkuncu
3 months
So, I am writing a firmware for a PCB that I designed. I know exactly what to do, but I am blocked... The reason is that I can't find a name for a thing that I need to name...
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
Back with my giant screen.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
🤓 Should I put a dot to indicate pin 1 so that people understand how to assemble them easily. 😈 naaaah, just make one edge slightly less steep for pin 1 to make the magic smoke escape easier.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
I need a proper desk...
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
It's been a while... (almost 3 months) since the last time I worked on the #PlainDAQ It's almost done! I tried to place the components in a way that it looks cool. I am not sure if I succeeded. What do you think? Subscribe 👇👇
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
8 months
Since I started working with KiCAD, I started disliking flat designs in Altium. Interconnections between sheets look so great! I know you can do that in Altium too, but somehow before using KiCAD, I had the habit to make every design flat.
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Alperen
@AlperenAkkuncu
6 months
Here is really nice picture depicting how layout affects the thermal resistance of an IC. As expected, larger the copper area, lower the thermal resistance.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
I wanted to try something different and went with efinix FPGAs. They have a great stock, and their rep in Türkiye was really communicative and helpful. I am very rusty in VHDL, but I think I can pull it off 😃😃
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
I need to implement a FIR and decimation filter for an acquistion project in an #FPGA , but first I need to select one. I am going to go with efinix or lattice because of availbility. My priorities are: Support and ready to use IPs. What do you suggest?
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Alperen
@AlperenAkkuncu
1 year
I couldn't find a single rs232-usb module that works with bipolar signal levels, so I had to bypass this rs232 transciever that generates bipolar signal levels to get TTL from the MCU. 0.65mm pitch, rate my work 👇👇 I am basically shorting TXs and RXs.
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Alperen
@AlperenAkkuncu
3 months
I am so dissspointed today... A client in the UK invited me to join the field test of a PCB that I designed. We decided to install the system together because I designed the PCB and developed firmware for it. I applied for a visa to visit them, and my application got
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Alperen
@AlperenAkkuncu
2 years
Soldering time 🦾🔩🔧(excuse the emojis)
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Alperen
@AlperenAkkuncu
10 months
I get interesting signals for this board. I know that the ADC driver and the input signal is fine because I sampled from this exact circuit before with an MCU, but this time I am using an FPGA. I have strange equally spaced spike coming out of the ADC samples.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
5 months
Closed a large contract with my client It was mainly a layout job in the beginning, but we also had to change hardware quite a bit to add featured that we need in the product I love to help startups Check my my profile if you need a hardware designer 👇
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
7 months
What is the best way to use this type of Flux? I am using toothpicks to rub to the pads on the pcb, but it's not working that great. Open for suggestions.
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Alperen
@AlperenAkkuncu
5 months
"Find Similar Objects" I think that's what KiCAD needs. Congrats on the v8 @kicad_pcb
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Alperen
@AlperenAkkuncu
2 years
I wish I had a folding phone 😆 You can easily browse digikey and read datasheets.
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Alperen
@AlperenAkkuncu
3 months
Some people are suprised to hear that PCB design is much easier to do remotely than firmware development.
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Alperen
@AlperenAkkuncu
2 years
Shooting a soldering video is much more difficult than I thought. 🥴 Especially with a crap camera and light.
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Alperen
@AlperenAkkuncu
2 years
Trying out the new phone camera. It's got a telephoto lense with 3X hybrid zoom (Whatevet that means), and I think it's pretty good at taking PCB pics 📸 📷
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Alperen
@AlperenAkkuncu
4 months
Got a message from the assembly house. The footprint is larger than the IC's pitch, but thankfully, they are all assembled fine because the difference wasn't too big.
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Alperen
@AlperenAkkuncu
1 year
How do I get one of these rs232 to usb working with windows 10? I tried look for the chip number but erased. It's probably very generic, but I couldn't make it work.
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Alperen
@AlperenAkkuncu
2 months
It's a symbol for an isolated RS-485 chip that I got from snapeda. Any ideas on how to make it worse? Chip P/N: ISO3080DWR
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Alperen
@AlperenAkkuncu
1 year
Got these two :) Power supply was very cheap and it can output 10A, I do not know how reliable it's going to be, we'll see. Brymen multimeter has the best spec for the money in my opinion. It's BM867s. 🟩Brymen BM867s Multimeter 🟩Uni-T UTP1310 Power supply
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Alperen
@AlperenAkkuncu
10 months
@seyrifilmenam Ticaret mantığına bak adamın... Bizim işlerimiz kötü o yüzden devlet kredi versin millete, onlar da gelsin bizden alışveriş yapsın. Devletçilikte sınır yok. Esnaf müşterisini fonlamanı bile ister devletten.
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Alperen
@AlperenAkkuncu
1 year
Disproportionality.
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Alperen
@AlperenAkkuncu
4 months
Here are two LDOs with the same SOT23-5 package. They also have the same pinout. However, their thermal coefficients are wildly different from each other. 162 vs 253 Why? I have two guesses: 🔵Larger output pass transistor 🔵Layout In any case it shouldn't be that different
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Alperen
@AlperenAkkuncu
2 years
Shinning light through the isolation slot. Next time I will get cut outs instead.
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Alperen
@AlperenAkkuncu
5 months
Almost perfect bodge wire placement. Guess what I did wrong. You don't have to think too hard, it's a very common mistake... 😑😑
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
10 months
First blink. I can also debug now perfectly. Let's see if we can get the usb working.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
9 months
Got another review for a job I started almost a year ago. It was delayed for many reasons. This client is very special because he helped me out a lot after the earthquake.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
@guclusinemm Sokakta köpek olmaz Sinem. Çok istiyorsan evine al.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
I really liked NXP's configuration tool (MCUXpresso Config Tools). When you click on a specific pin on the left, it highlights which hardware it can be assigned to. When you click on a specific hardware, it shows which pin it can be assigned to. Pretty neat. I'm working on a
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
Gece gündüz sizin için çalışıyorum orta yaşlı eytlilerim benim 😆 #EYTliler
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
This little 10W charger draws almost 1A ⚠️ from the mains (120VAC) at start up. It triggers the inverter's overcurrent protection.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
3 months
@suleleeyy Yahudiler gibi "loophole" bulmalar...
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
It was such pain to draw this in Altium. Spent so much time on it...
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
Here is what I am working with today 👇👇 PIC16F628A ✅️4MHz clock ✅️2kbyes of flash ✅️224 bytes of RAM It looks cute, but why would anyone use it? I checked its price it's rubbish. Any reason why people still use it? Not trying to start a debate, just wanna learn.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
I ran into a job post on freelancer. This guys wanted a GPS tracker with BLE or Wi-Fi, and it should as thin as a credit card. One guy's proposal: I can do this in a day for a 30$. 🤣🤣🤣🤣🤣
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
5 months
There are many good suggestions under this tweet. Apparently, there are much better ways to let someone work on the hardware remotely.
@AlperenAkkuncu
Alperen
@AlperenAkkuncu
5 months
I hired a firmware developer. I set up a laptop for him to access the hardware through debugger over TeamViewer I don't know how it's going to go, but if it makes my workload lighter, I call it a win Does anyone do that? Is there a faster and better way than using TeamViewer?
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
This mosfet is so dead 🪦🪦
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
11 months
Good news: Just got my PlainDAQs. They are still missing a few components, but they are mostly complete. Bad news: nothing works. 😆 I am going to investigate and find the problem. ✅️Subscribe: Sponsored by @PCBWayOfficial Shot by @zhraagull
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
6 months
Translate English hex file to arabic file so that arab STM32s can understand the hex. + They need a frequency generator with 100% accuracy.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
These "GPIOs" can only be used as inputs. 🤣 Respinning the board because of this.
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
7 months
I've been using LTSpice since I was a student, I never realized there is a type of simulation called "Transient Frequency Response". I think they just added that. Maybe it's a nice tool to analyze non-linear stuff?
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 months
@solidstatexx Zaten onun başının altından çıkmadı mı bu problemler????
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
Started on a new precision design. Here is the power supply design for the opamps. The board will be powered from a 5V source. +/-15V is generated from boost/inverter IC and it is post regulated by the LDO Luckily BOM cost is not too critical and we can use lots schmick parts 🙃
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
1 year
I've got my top rated plus badge on @Upwork Another important milestone in my freelancing adventure. I specialize in high-speed and precision analog designs. If you'd like to work with me, you may check my profile below. 👇👇👇
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@AlperenAkkuncu
Alperen
@AlperenAkkuncu
2 years
✅️1000uF 35V nichicon Cap It's really loong I put a 1206 tantalum cap on top to give you a better perspective 😌
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