Untested. Ordered 2017-05-31. Updates to follow.

Made with Autodesk Circuits (formerly 123D Circuits.) I am working on the documentation there then copying it here.

https://circuits.io/circuits/5009781-staff

My roommate wants to put a glowing crystal at the top of a staff. I threw together a circuit with a ESP8266, a WS2812 jewel module (7 addressable RGB LEDs,) a 14500 LiPo battery, and a LiPo charging module.

B- and B+ go to a LiPo battery (14500 in my case)

S goes to a switch to turn it on or off (short to turn on.) Battery can still be charged with it turned off.

L-, LD, and L+ go to a string of WS2812 LEDs. L- is GND, L+ is VCC, and LD is the data or signal line. I’m using a “jewel” module with 7 WS2812s on it.

TX, Rx, G0, and RST are for programming the ESP8266

G4, G5, and G16 are GPIOs from the ESP8266 for adding other components later.

Update: I had PCBs made and it turned out ok. The pads for the lipo charger were a bit small (but worked) and the pads for the bottom of the ESP8266 were under the module a bit (but by shifting the module up just a bit I was able to make all the contacts work.

Still in progress.

Upside ADC with side socket Raspberry Pi 2 HAT for ADS1256 blue module mounted upside down on HAT

https://www.youtube.com/watch?v=FhUR74WrZe0

EPM7128_test_board

WA5VJB yagi feed

J-Link Adapter from .1" to .05" spacing

Replacement PCB for Sega 171-5468

Adapter for AD9850 module and Arduino UNO. The pin at the corner of the board is Arduino D13. At the edge of the board, an SMA connection outputs a bipolar sine wave.

Remote PCB for wireless trailer- and towing- lights based on ATmega328 and “1,27mm pitch NRF24L01+ ceramic”. Designed to fit inside “tirol 7 pin trailer plug”

STM32L432-based sensor tile. Replaced MPU6500 with BMA280 and using a smaller ON/Off switch. Added Tactile button.

Nani Nani Kids x TMR/JNFX = Robots Inc.

Github Project

Thanks Jose/JNFX

edge vias cut

DO NOT BUILD this version. Use the new version instead.

NOTE: This version has been replaced by a new version.

Laser Control Board Arduino Shield for the Laser Vision System. This board interfaces the laser PWM power modulation and on/off logic, as well as the LaserEye Reflection Sensors.

ERRATA: The negative voltage inverter on this board is unstable and has issues, generally causing it to go up-in-smoke. The laser power switching circuit on this board switches the low-side of the power supply, but the PWM output is referenced to ground, meaning that the laser will always stay powered up, rendering the power switching circuit useless. Use the new version of this circuit instead, which works rather well.

INA226 Voltage/Current/Power I2C interface

Full Project details here - https://blog.squix.org/product/esp8266-wifi-color-display-kit-2-4

Broadcom’s APDS9500 gesture sensor and IR camera, redesigned layout for better breadboard use.

https://easydomoticz.com/forum/viewtopic.php?f=7&t=1956#p17270

https://easydomoticz.com/forum/viewtopic.php?f=7&t=1956#p17270