Low-speed, high resolution pixel poi based on WS2812B LED strip.
NeoCandle is a simple tea light candle simulation based on ATtiny25/45/85 using 5mm NeoPixels (WS2812), LDR light sensor (GL5528) and IR remote receiver (TSOP4838). It can be controlled by an IR remote control with two buttons and has a timer mode for automatic shutdown after a set time as well as an LDR mode in which the candle is automatically switched on and off depending on the inte...
ATtiny85 dual core board - two ATtinys work together to control neopixels, receive and decode IR remote signals, analyze audio from the microphone and check ambient light intensity. The board integrates a buck converter as well as expansion headers for additional sensors, actuators and I²C devices.
NeoPixel led strip controller, designed especially for led suits. It can:
- display animation - sequences of frames at regular (given) interval,
- switch animations on MIDI event - note on/off, velocity used for brightness adjust,
- MIDI over UDP over WiFi (UDP broadcast so far, but i'm working on multicast),
- use regular SD card to storage animations.
[These guys use them] for...
*ESP8266 and WS2812b Individually Addressable RGB LEDs [12 bit]*
**EspRing** is a 12 bit neopixel ring using **ws2812b** RGB LEDs and to control the LEDs there is an **ESP 12E** module builtin. So basically you'll get a *neopixel ring which has a onboard microcontroller*. Since WS2812B leds are individually addressable so we just need only one data pin from the microcontroller along with VCC and...
<p><strong>Simple Neopixel LED driver.</strong></p>
<p>WLED Neopixel compatible driver made with Wemos D1 mini V2 and Wemos D1 PRO in mind. Project use quadruple buss buffer (SN74AHCT125DR) as as logic level shifter from 3V3 to 5V to ensure correct voltage level especially when using long cables between MCU and LEDs.</p>
<p>As result you get four channels with 5V logic...
A dual microcontroller board for controlling "Neopixel" LEDs, with one micro dedicated to driving the LEDs while the other micro is busy reading push buttons, polling rotary encoders, reading IR remote signals etc etc.
The microcontrollers -two atmega328s -communicate with one another over their I2C bus. The very short wire run negates the need for the usual pull up resistors on the bus.
A simple level shifter to control WS2812/WS2813/Neopixel with a 3.3V GPIO pin
Instead of using level shifter ICs or MOSFETS you can simply sacrifice 1 LED to do the level shifting for you. The voltage for that sacrificed LED needs to be lower than 5V. Using a diode to reduce voltage to 4.3V works.
Note that the brightness of that LED will be lower than that of the other LEDs. So you may want to...
A ESP-12 IoT controller for RGB LED Stripe 5-12V.
3+1 channels through MOSFET, PWM and dimming functionality.
The MOSFETs can be replaced by NPN Power transistors (input resistors are as THT parts placed, the 10k pull down's not needed.
The 4th channel is a Logic level up-converter (3.3V->5V). Driven by a 2N7002, can be replaced with BSS138 or similar. Note that it's is a very small power output...
Level Shifter to run 5V NeoPixels (WS1812B) LEDs via a 3.3V SPI bus (e.g. Raspberry Pi).
The P-SPI header was designed in such a way, that the PCB can be plugged on top of the Raspberry without further cabeling.
The P-LED-DRIVE outputs the signal to the LEDs, while P-LED-SENSE _optionally_ connects to the output of the last LED in the chain.
Connecting P-LED-SENSE allows a software running on the...
*This design has not yet been built and tested*
Cascade-able 5 Chip Neopixel board suitable for decorative lamps especially using the ESPEasy NeoFlame plugin.
Should work well with any Neopixel application that is suitable for groups of five LEDs.
This board is for individual WS2812b LED chips. Not the ones pre-mounted on a heat sink pcb with resistor and capacitor already installed.
<p>!Work in development -> Values of resistors and capacitors are not calculated!</p>
<p>Power switch board with BTN8962 and ATmega328p. Planning to use it for turning on/off different 12V loads from a car battery. It communicates using RFM69.</p>
<p>Link of source code: https://github.com/sergiugabrielstanciu/Campervan_relays</p>