Mechanical-Digital Steel Ball Clock
I've done it in similar way, shelf in wood and front led part in 3D print. I did not have any RTC chips around and came across your comment on using NTP. Great Idea. I have borrowed your code 😁. (https://rbklabs.in/digital-shelf-clock/)
Amazing Project.I have made slight modifications to it :-)Instead of completely 3D printing the shelf, it is build out of wood and just the front part is 3D printed. And used ESP32. If you are interested in the 3D files and setup - https://rbklabs.in/digital-shelf-clock/
How to Build a Giant Hidden Shelf Edge Clock
ProtoSpray: How to Make Your 3D Prints Light Up!
Hey Alex, there is a 'void selftest()' function in the code.If you want to run only thr test section, then remove everything from 'void setup()' except pinMode configs and function call to selftest().
Opensource Ornithopter Prototype. Arduino Powered and Remote Controlled.
Word Clock Controlled by 114 Servos
Omni Wheel CNC Plotter
PCB Business Card With NFC
DIY Dashbutton for the Internet of Things
3D Scanning Class
Control PC Wirelessly With Eye Blinking ;)
Open Source Turtle Robot (OSTR)
DFRobot Turtle Robot
Super Simple Inductor Joule Thief!
"Joule Thief" - No IC and No Transformer
A Smart Wristband for Personal Air Conditioning and Heating
OpenBraille, a DIY Braille Embosser
Arduino Drone | Quadcopter (3D Printed)
The most popular G-code parser for Arduino is GRBL. But it is very rigid in terms of hardware. It works with stepper driver such as DRV8825 or A3967, which are hard to get in local stores around me and they are expensive compared to L293d.My objective was to construct a working Plotter with all recycled parts (without spending ₹). So I used few L293d's laying around and a broken printer parts. Which is given in the instructable.But the curves are not smooth when using H-bridge, so I had to go for those Drivers in the end and those results are posted in the last step. When running on H-bridge the results are better when the step count of the motor is higher.
HaHa.what did you do with them..?
Accelerometer Based Gesture Recognition for Controlling a LED
CoreXY CNC Plotter
Windows PC Lock/Unlock Using RFID.
Turn a Pencil Drawing Into a Capacitive Sensor for Arduino
Hey rochadias, thanks.! ?The battery will run for years.. Mine is now 1.5-2nd year running..