Incubator control board. This board interfaces the Arduino with the fans, temperature sensor, lights, voltage regulators, and Peltier controller. Uses all through-hole components to make assembly easier for users.

Basics

Holds ESP8266 with level convertor. Attach 5v supply where indicated. Attach WS2812B LED strip to the other side.

Tips

-If you get signal issues there is a through-hole connector which can be just wire or the 470 ohm recommended by the project but you can simply bridge this with wire. -Using WLED with less than the stated amperage (within the software) will mean channel mixed colours will be dull. -To combat this during flashing events a surge capacitor space is provided. However, if you intend to maintain a mixed colour (say white) for more than a fraction of a second get the required power supply amperage.

Warning

This is NOT for use with 12V LED systems as the ESP8266 is powered from the same rail.

I2C port expander for Raspberry Pi B+ with 8 optocoupler open collector outputs (80V, 50mA max.) and 8 GPIOs (5V-tolerant when used as input)

4 Channel Parallel Output Radial LED controller for 3 wire addressable LEDs using a Wemos D1 mini. Designed specifically for a series of LED sculptures created in the winter/spring of 2021. This board was updated in June 2021 to remove potential issues when soldering the resistors, causing a short to the ground plane. Also, one of the capacitors was removed and replaced with three pads that add the use of a potentiometer to allow for adjustment of the sculpture.

For the power and data connection to the backlight neopixel strip on a word clock.

https://github.com/marksidell/wordclock

For the neopixel power and data connections at the bottom of a word clock.

https://github.com/marksidell/wordclock

For daisy chaining the neopixel data line at the top of a word clock.

https://github.com/marksidell/wordclock

Breakout to test ISSI’s IS31FL3246 12-rgb LED driver using Lumex’s LX0303 rgb leds.

UM6650 replacement rev.2

Text on PCB should self explained.

For more details visit https://github.com/splash5/superacan-notes

rev 1.1

SOIC-16W (7.5x10.3mm) to DIP-16 (0.5in pitch)
Pins 1 marked on silk

boards 1 - 8 have 200um clearance boards 9 - 24 have 150um

inverts input signal to drive 1206 led; amplifies the reflection via a temd1020 photodiode

stimulates a sensor with a 1206 led plus reads back the reflection via a temd1020 photodiode

For controlling two DC motors, a bipolar stepper motor or the primary winding on a transformer as part of a power supply.

Schematic: https://www.phys.hawaii.edu/~mza/PCB/misc/dual-h-bridge.revA.schematic.pdf

GBA SP mod to add support for USB-C charging. Updated by rorosaurus to allow USB-C -> USB-C charging (must solder two 5.1k 0402 resistors). Order PCB with 0.8mm thickness!

Original post here: https://github.com/rorosaurus/gba-sp-usb-c