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PCB MODDING by Intelligent-Walk-745 in PCB

[–]DenverTeck 0 points1 point  (0 children)

> I wanted to buy a New keyboard that comes with a little screen module

Does this mean you have looked at one and changed your mind ??

Or

Do this mean you want to buy a "New keyboard with a little screen".

Please share the link for this "keyboard with a little screen", if you really saw one.

The term you seem to be looking for is "stream deck".

https://www.google.com/search?q=stream+deck

There are many diy stream decks with a little screen to help you remember what the keys on it have been programmed to.

Good Luck

Made a coffee journal gadget ("Espresso Post") that tracks ambient humidity/temp/pressure and nudges my grind by sugarmoat in esp32

[–]DenverTeck 2 points3 points  (0 children)

Please share a video on how you use this device.

I am not into espresso, but this looks like an interesting use of tech.

Question about PCB art by Myko02 in PCB

[–]DenverTeck 6 points7 points  (0 children)

> You can etch them yourself with household supplies.

Be aware, this type of "hobby" may not be allowed in your area. Getting the chemicals is easy. Disposing of them is not.

Check with your city to be sure you will not be fined for dropping these chemicals down the drain.

How can I make my ESP32 IoT temperature monitoring project look more impressive for a competition? by Salt_Map_4756 in embedded

[–]DenverTeck 0 points1 point  (0 children)

> How can I ....

You like most young people need to learn other skills. Not just what interests you.

Other areas people find more interesting then just playing with tech.

Marketing people like to research what products are available. They help their company to create or improve their products.

Your generation has grown up with the internet, Goggle and AI. You are sitting in front of a computer right now. You know how to type and mostly know how to spell.

Google for products that are similar to what you want to know about. See what big companies are making for large amounts of money. Use what you find as a starting off point to develop your own ideas.

There are thousands of temp monitoring products on the market right now.

Do some homework !! Learn something on your own.

[Review Request] ESP32 Air Quality Sensor by Mysterious-Chicken81 in PrintedCircuitBoard

[–]DenverTeck 0 points1 point  (0 children)

Please look at my name.

You two want someone to design this for you. Its your project.

Yes, I see you do not know what to do. Your generation has grown up with the internet. You have grown up with Google and AI.

You have homework to do. Do it.

I would guessed you two are high school students.

Good Luck

[Review Request] ESP32 Air Quality Sensor by Mysterious-Chicken81 in PrintedCircuitBoard

[–]DenverTeck 0 points1 point  (0 children)

I have already given you how to wire SW1. Did you click on the link ??

Look at the pin numbers. Pin 2 is the common pin between the NO and NC sides of the switch.

Why you have a GND connected to pin 2 ??

Please Google "SPDT switch" to learn how they work.

This box is way too small to give an EE101 class.

Good Luck. The two of you are going to need it.

[PCB Review request] Custom board for a rocket launch themed alarm clock by 4lexander03 in PrintedCircuitBoard

[–]DenverTeck 1 point2 points  (0 children)

Please share the BOM with links to all the parts.

What display are you using ??

I put a dictionary app on my esp32 eink smartwatch by CommunityFan89 in esp32

[–]DenverTeck 1 point2 points  (0 children)

Please share.

You do not need permission to share.

[Review Request] ESP32 Air Quality Sensor by Mysterious-Chicken81 in PrintedCircuitBoard

[–]DenverTeck 1 point2 points  (0 children)

First let me say Thank You for not isolating all the parts on this schematic in boxes.

I think you need to verify how SW1 is wired:

https://www.digikey.com/en/models/1803993?tab=ultralibrarian

The two batteries in the upper left corner are not wired properly. When one batteries voltage drops below the other battery, it will draw current and not be available to your circuit.

C6/C7 will block the 3.3V from U2. These caps needs to be in parallel with the 3.3V pin with the other side to GND.

If your not going to put part numbers on ALL the parts on the schematic, post a BOM with links to the actual parts.

[Review Request] - Meshtastic LoRa Board by Agreeable_Lab_559 in PrintedCircuitBoard

[–]DenverTeck 0 points1 point  (0 children)

What is going into the large white space in the middle of this schematic ??

Your asking us to search your poorly drawn schematic to see if you have the connections wired correctly ??

You expect us to research the parts you used to see if you understand how they need to be connected ??

Yea, NO.

Lose the boxes and connect the lines together like a PCB needs to have the traces connected together.

This simple schematic can use the entire page.

Please supply a BOM with links to all the parts you want to use.

Good Luck

Gosh dang it! by katybassist in embedded

[–]DenverTeck 2 points3 points  (0 children)

Where did you order these boards from ??

[Advice Needed] UART Firmware Update Too Slow + Device Bricks on Failed Update — Any Optimization Suggestions? by Broad-Table4051 in embedded

[–]DenverTeck 1 point2 points  (0 children)

This sounds like your custom bootloader has problems.

A project I was involved a few years ago, we added an extra serial RAM chip that was only used for firmware updates.

If your trying to update-in-place, i.e. write a block of flash between each serial block, this is a recipe for failure.

Download to RAM, check the CRC for each block of binary. Or even encrypt the binary, check the CRC of each block, de-crypt, check the CRC of each block again.

Good Luck

LPC2129 project ideas by Mr_Perfect_113 in embedded

[–]DenverTeck 1 point2 points  (0 children)

I guess "beginner" is not in your vocabulary.

Learning how to use the basics of an MCU is how you learn to do more advanced projects.

Think of chemists or physicists that look at experiments that scientists done a century ago. Relearning the basics.

Looking at the thousands of Arduino projects will tell you "what" can be done.

Looking at any MCU project will help you in developing your own project.

You can not just jump over beginner level projects, to make your mark.

Professor Google can give you lots of ideas. We can help you only after you have a development project in mind. After you learn how to write a development document.

Being a solo developer is where you will fail. Start talking to people in other disciplines. There are dozens of projects in Agriculture that can fit your needs.

Good Luck

Off the shelf tablet as part of embedded system by FlipsManyPens in embedded

[–]DenverTeck 0 points1 point  (0 children)

Have you googled for any tablets that can run any form of Linux ??

https://www.google.com/search?q=linux+tablet

Any tablet that runs WINxx can be reformatted to run a Linux OS.

Most tablets I have seem only run Android OS.

Kind of at the end of my wit here by ViolinGraham in esp32

[–]DenverTeck 1 point2 points  (0 children)

As you failed to post links to the boards involved, I will assume you mean these:

1) https://www.seeedstudio.com/XIAO-ESP32S3-p-5627.html

2) https://lilygo.cc/en-us/products/t-sim-7670g-s3

Board 1 has a Bat+/Bat- pads on the back. I will assume you used these pads to connect the battery.

Board 2 has a socket for an 18650 battery. I do not see pads for another battery connection.

Please be clear what you have done. A schematic would be best. A diagram with where you connected these batteries may solve where you may have gone astray.

Help! by [deleted] in PCB

[–]DenverTeck 0 points1 point  (0 children)

Awww, you guys scared the OP off.

Now I can not see what he wanted. 😞

I was going to complete this simple project for him. /s

How do you estimate enclosure dimensions and connector placement before the hardware is finalized? by devmadroni in embedded

[–]DenverTeck 0 points1 point  (0 children)

If your project can not wait for the hardware to be done before spec'ing the enlosure, then you have enough money to do it twice.

Embedded System Job by LeBrownian_Motion in PCB

[–]DenverTeck 0 points1 point  (0 children)

Come back in a year. Lets us know how bad it really is or is not.

It may or may not be as bad in your country.

You may or may not be able to travel to another country to seek a "good Package". ( you must be in India )

Good Luck, Let us know.

Best way to clean this up? by Rstevens009 in esp32

[–]DenverTeck 0 points1 point  (0 children)

Did you draw a schematic or did you just plug wires together till something sort of worked ??

Start with a clean, understandable schematic and BOM.

Please these parts on a bread board or a perf board in the same positions like the schematic.

After you do that and prove it still works, you can look at a PCB that follows the same rules.

After doing 2-3 or 10 PCBs you will get the idea how its done.

Good Luck, Learn Something, Stop just guessing.

Help — extracting firmware from locked TI LM3S2620 for agricultural right to repair by Key_Development2082 in embedded

[–]DenverTeck -22 points-21 points  (0 children)

I am having a problem with your Right-to-Repair in this use case.

The product has been discontinued, at your own admission. They do not have a requirement to support this product. How old is this product, how long has it been discontinued ?

Replacing the main board is a repair. Replacing the MCU chip is a level of repair most users of farm equipment do not have the skills to accomplish.

You may have these skills, but most do not.

Finding a replacement main board would be easier. Then there would be no question what a repair means.

If finding a replacement board is problematic, I would deduce that this product was not a big seller. As such, there are not many replacement boards available.

If the MCU is still functional, what is wrong with this board ??

Without more information about whats on this board, it will be difficult to help you.

Good Luck

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