Uploaded January 2014 | Updated September 2026, 1 week ago
This video explains the R-2R resistor ladder and how it can be used to generate analog voltage at a very high Speed. It shows an example synthesizing an 8-bit sine wave on a speeker using the Arduino Uno. It is able to generate 3MSamples/s on tha 16MHz clock.
Subsscribe to see some projects in future.
If you have questions, please ask. I do my best to reply all requests.
Music:
_ghost - Two Swords
ccmixter.org/files/_ghost/26146
Creative Commons Attribution (3.0)
creativecommons.org/licenses/by/3.0
This video explains the R-2R resistor ladder and how it can be used to generate analog voltage at a very high Speed. It shows an example synthesizing an 8-bit sine wave on a speeker using the Arduino Uno. It is able to generate 3MSamples/s on tha 16MHz clock.
Subsscribe to see some projects in future.
If you have questions, please ask. I do my best to reply all requests.
Music:
_ghost - Two Swords
ccmixter.org/files/_ghost/26146
Creative Commons Attribution (3.0)
creativecommons.org/licenses/by/3.0
![Solar Weather Station [WiFi, MQTT, Smart Home, ESP8266]](https://i.ytimg.com/vi/at7wmm9t8UE/mqdefault.jpg "Solar Weather Station [WiFi, MQTT, Smart Home, ESP8266]
This video shows and explains the hardware of a solar powered WiFi weather station. Using MQTT it publishes sensor values to Node-RED which shows it in the browser.
Project page (All details, codes, files, and flows):
http://bitluni.net/solar-powered-weather-station/
Check out the playlist for the other parts of this series:
https://www.youtube.com/playlist?list=PLjUbKCHhzPEzoMWj99gr4YOIyqFuTIYlA
Twitter: @bitluni
If you like the video consider supporting my work on Patreon and get some extras:
https://www.patreon.com/bitluni")
![How to make a Temperature, Pressure, Altitude Logger [Esp8266, WiFi, Arduino]](https://i.ytimg.com/vi/cwWRHZlu_T0/mqdefault.jpg "How to make a Temperature, Pressure, Altitude Logger [Esp8266, WiFi, Arduino]
This tutorial shows how to make a basic logger using WiFi and Adafruit MQTT. It is based on the cheap WeMos (Esp8266) micro controller with an air pressure/temperature and an OLED shield. It is programmed with an simple Arduino sketch and put in a 3D-printed case. I also explain how the altitude is calculated from airpresure. This logger should be doable for beginners, since not much soldering is needed. Enjoy watching!
The code can be found here:
https://github.com/bitluni/Barometer
My Patreon page:
https://www.patreon.com/bitluni
Links to the parts (I get small cut at no extra cost for you):
WeMos
http://s.click.aliexpress.com/e/jUfAmUF
http://ebay.to/2skrCE1
http://amzn.to/2saaoKL
bmp180 shield
http://s.click.aliexpress.com/e/u3rVrby
http://ebay.to/2vqmK0K
http://amzn.to/2gegGFE
oled shield
http://s.click.aliexpress.com/e/n2JUnQF
http://ebay.to/2vfafce
http://amzn.to/2vyuop0
tomo m4 power pack
http://s.click.aliexpress.com/e/u3JyvJY
http://ebay.to/2xlLfgI
http://amzn.to/2gej3Iy
Arduino esp8266 support:
https://github.com/gbrault/esp8266-Arduino")
![LED Matrix Lamp made with a Budget 3D Printer [ANet ET4+]](https://i.ytimg.com/vi/enSusqJBnFk/mqdefault.jpg "LED Matrix Lamp made with a Budget 3D Printer [ANet ET4+]
This video shows a short test of the ANet ET4+ 3D Printer. It provides some cool features that allow continuing after power off and changing the filament mid-print. I tested the filament change to print a functional lamp case for a simple 16x16 pixel RGB LED matrix. The lamp is driven by the ESP8266 and WLED. It can be controlled over WiFi and used for several IoT purposes.
Build instructions: https://bitluni.net/led-matrix-lamp
The Youth-Center: http://www.juze-graben-neudorf.de/
The ANet Pritners (all free & fast shipping from local stock)
ET4: $151 https://aliexpress.bitluni.net/ANetET4
ET4 Pro: $191 https://aliexpress.bitluni.net/ANetET4Pro
ET5: $266 (EU & Russia) https://link.bitluni.net/ANetET5
A8 Plus: $161 https://aliexpress.bitluni.net/AnetA8
Links to the parts (affiliate links):
Flexible RGB LED Matrix ($13): https://aliexpress.bitluni.net/flexRGB
ESP8266 D1 Mini: https://aliexpress.bitluni.net/d1mini
Power Supply: https://aliexpress.bitluni.net/ACtoDCBarrel
5.5mm Barrel Jack: https://aliexpress.bitluni.net/barrelJack
5.5mm Barrel Jack solderless: https://aliexpress.bitluni.net/screwBarrel
My camera and lens (4k 60fps):
https://amazon.bitluni.net/gh5
Zoom H6 Audio Recorder:
https://amazon.bitluni.net/h6
plz share :-)
Tindie store: https://www.tindie.com/stores/bitluni
Github Sponsors: https://github.com/sponsors/bitluni
Patreon: https://www.patreon.com/bitluni
Channel membership: https://www.youtube.com/channel/UCp_5PO66faM4dBFbFFBdPSQ/join
Paypal: https://paypal.me/bitluni
Twitter: @bitluni
reddit: u/bitluni
Discord: https://discord.gg/MT5RbJt
Music:
Jeremy Blake - Powerup!
Quincas Moreira - Sparse Clouds
Aaron Lieberman - My Peeps
Corbyn Kites - Birds
Lish Grooves - Pitch
#electronics #LED #3dprinting")
