Design variant for ESP8266-based board

jasonwebb / Jar-of-Fireflies

Mason jar with interactive LEDs that mimic fireflies on a warm summer night, realized with an Arduino-enabled ATTiny85, multiple power options and a sensor interface.

14 stars 6 forks source link

Design variant for ESP8266-based board #10

Open jasonwebb opened 5 years ago

jasonwebb commented 5 years ago

I'd like to be able to build many of these jars and have them intelligently networked together for interesting effects. To do that they will need a more advanced microcontroller with some sort of wireless technology.

The ESP8266 fits the bill, but I'd rather not have to build and test a functioning board around just the bare module myself. Instead I think I'll use the ESP-12e board with NodeMCU.

This might be good to break out into a separate repo (Jar-of-Fireflies-ESP8266?)

jasonwebb commented 5 years ago

I whipped together a quick proof-of-concept schematic and PCB layout to see if it can be done, and it's looking like it can work!

To reduce costs, I may want to find a way to have multiple jars share a single ESP-12e somehow, maybe through a daughterboard adapter that connects using the existing headers.
Will need to create a nice silkscreen design for this
Since the ESP-12e has way more GPIO pins and processing power than the ATTiny85, I may opt to use "smart" LEDs like the WS2812.

esp12e-schematic esp12e-pcb