Ori, wired and functional at a very basic level.

This is a ESP8266 board with a small 128x32 OLED and two buttons for input and a BME280. I still need to change header for BME280 to  a right angle to cut down overall  height. Quite a lot smaller than Dwalin v2; I'm wondering if perhaps I could drive Dwalin v3 with one of these and fit it in a much smaller enclosure. 

Functional in this code: 

• Button input
• Sensor readings from BME280
• OLED display of sensor reading

Two major items to code up: OTA firmware updates and pushing sensor readings over the network to MQTT and prometheus