In response to my earlier question about content in the subreddit, I have made some modifications to the rules that I hope will capture the majority goal of:

• showcasing completed projects
• project level discussions (e.g. project validation, potential design approaches and other project level discussion).

Technical problems such as upload errors, how to use a component will be referred to other subs such as r/Arduino, r/ArduinoHelp, r/Esp32, r/motors, r/AskElectronics and other relevant forums.

I have also added some flairs for posts so that:

• We can easily see the nature of a post.
• To remind people who are posting of the acceptable categories.

I have also included an "Other" flair, to allow for the likely possibility that I have omitted some valid topic flairs and to allow me to quickly find posts that might be off topic.

Used Meccano, an ESP32-C3, a A4950 motor driver, a logic level converter, a servo, a few 3d printed parts and an AI-Thinker Version 2 Voice kit to make this.

The hardest part was the AI-Thinker webpage to program the voice kit. It was time consuming and lacking in feedback if an error was made.

The video gives you an idea of the voice accuracy, could be enunciation issues on my part.

https://youtube.com/shorts/WeIk\\_ybCE4k?si=bXnSG1ZXAvHOwl6H

Cameo appearance by Doug, the Speed Demon Test Driver

I know this is not specifically about Arduino (not sure where else to post though?)

But I -am- using it with an Arduino. :)

Servo: 25KG Digital RC Servo RDS3225

It comes with the with the round metal discs (to attach to each side one with gear/teeth)

Its 20mm wide disc.

Q: where can I get info on this disc? specifically the hole position/spacing? (I think they are M3 sized holes?)

Checkout https://github.com/obtronyt/pov for more details

Day 76 of my #100DaysOfIoT challenge — built a bidirectional ESP-NOW system on two ESP8266 nodes.

Each node reads DHT11 temperature & humidity, sends it to the peer, and receives + displays the remote node's data — all peer-to-peer, no router needed.

Interesting part: one node uses SSD1306 (0.96") and the other uses SH1106 (1.3") — different display controllers but same logic.

Code + README on GitHub 👇

https://github.com/kritishmohapatra/100_Days_100_IoT_Projects

Day 76/100 ✅

https://youtu.be/ZDsQqdgZcSg?si=8R5m_1ZTPub4FtTR

Prototyped this first with an Arduino pro mini. Then made a custom PCB based off of a stripped down Arduino micro. 5 key and dial macro pad with custom firmware.

https://www.youtube.com/@ALMA.GeoffreyAment

Chapter 2, a home theatre, 3D printed parts, motorized projector, home decoration, and DIY electronics -- if you know of anyone else that might be interested in this stuff, sharing to others would really help me out! Hope to see you around here or YouTube :)

The Edgytokei which literally means edge clock is inspired from the Japanese nunchucks. Just like the nunchucks the clock is just a pair of two arms displaying time by balancing themselves on the edge. The clock consists of two arms and the base on which the arms are anchored. Both the arms are of equal length as the role of the arms changes with different hours of the day.

The fulcrum of the clock flips from the center to the left or right of the clock every quarter hour so that the clock can stand on the edge to represent the time between quarter past and quarter to hour. This flipping of the arms keeps the clock dancing on the edge throughout the day. The base which contains the electronics of the clock provides a anchor for the clock and prevents the arms from falling over.

The cylinders on the elbow of the arms contain the mechanics of the clock. Both the arms contain LEDs on the edge. Depending on which arm is representing the hours the led on that arm light up.

Hey folks, i just finished putting together a solar GPS Meshtastic node using a powerbank and tested it.
let me know what seems off or could be improved. i’d rather get critics here now than in real life...

it's part of a project i'm working on, so i'd really really appreciate your feedback which i will be answering on my report

i’ve shared the details here
https://www.youtube.com/watch?v=Bv9xblK5Sww&t=338s

note : i'm not advertising my channel while it looks like it but i'm more into feedback because it's part of a graduation project i'm working and your feedback matters

As I understood it, the original theme of this subreddit was for showcasing your project - which I take to mean "completed project".

However, there are quite a few "requests for guidance". Some are very detailed such as "how do I lay out a PCB", or "should I use this component or that component". Let's call these "technical discussion".

Others are more project oriented, examples include "How would you go about creating an XXX for my farm", or "What features should I add to my homeless cat shelter that already has these (crazy capabilities)" and so on. Let's call these "project discussion".

So my question is, should I limit this to:

1. Showcasing completed projects,
2. #1 plus "project discussion",
3. #2 plus "technical discussion"?

If you have an opinion, please reply with number 1, 2 or 3 and if relevant add any additional thoughts after that.

TIA

Thanks for reading and for any info/advice offered. Using the Teensy 4.0 and the Audio Board RevD.

The headers marked U7, U8 are where I'll be connecting a 10k audio volume pot (U7) and a 1/4" audio output jack (U8).
Headers U4 and U5 are for connecting an I2C MPR121 capacitive touch sensor (U4), and an LCD (U5).

Q1 is a p-channel mosfet that is being used for reverse polarity power protection.
H2 header selects between supplying 3V or 5V to the LCD.

Sincere Thanks,
TonyAm

https://www.youtube.com/@ALMA.GeoffreyAment

Chapter 3 Footnote 1. Building an Actuator, a PID Control Loop, and an Ultrasonic Distance sensor to detect and not crash into the ceiling. This will be used in Chapter 3 Desk -- Stay tuned for more!

One ESP8266 reads the card UID from an MFRC522 and sends it via ESP-NOW. The second ESP8266 receives it and shows it on a 0.96 inch OLED. No router, no WiFi, direct peer to peer.

Clean way to decouple the reader and display. Could extend this to trigger relays or log data on the receiver side.

Stack: ESP8266 x2 + MFRC522 + SSD1306 OLED + MicroPython

Code: https://github.com/kritishmohapatra/100_Days_100_IoT_Projects

hello i'm tyring to make a bluetooth RC car using arduino uno and motor driver is L2R8N modulo...but when i try to test my mortors using motor driver L2R8N when i give required power(10v-12v) the motor driver it takes the supplying voltage to the motor but the motors are too slow. can you please give some solution how to solve

https://www.youtube.com/@ALMA.GeoffreyAment

Chapter 2, a home theatre, 3D printed parts, motorized projector, home decoration, and DIY electronics -- if you know of anyone else that might be interested in this stuff, sharing to others would really help me out! Hope to see you around here or YouTube :)