Olimex esp8266 PCB Schematics/Layout

Olimex have made their esp8266 layout available here. It’s under a pretty permissive CC license (allowing commercial use with attribution). I’m interested in using this as a basis for my own designs. However Olumex use Eagle, and I’ve mostly using Kicad lately. This page contains image dumps of the schematic and layout for my reference …

esp8266 analogue input

The esp8266 contains a 10bit ADC. There are apparently various issues, including instability when transmitting over Wifi, and the lack of a voltage reference. However it is usable. The analogue input is labeled “tout” on the pinout below: Unfortunately this isn’t broken out on the cheapest esp8266 boards (the esp1) but it’s possible to get …

esp8266 notes summary

I’ve written a bunch of posts on the esp8266. This post is intended to summarize them, and I’ll update it as I add new content. All the code examples are designed for use with the open SDK available here. Hardware Module types available Initial notes on programming/using the esp1 Wifi and TCP/IP Access point mode …

MSP430Watch2 – Barometer and Wifi (PCB Design)

A long while ago, I played with an hacked together watch, based on the msp430. Recently I’ve been playing with a few interesting parts, the esp8266, an interesting I2C LCD and a cheap barometric sensor. I decided to throw all these components together in a watch layout, just for fun! The PCBs are now out …