Bangalore Open Weather Network

Rajeev Jha (rjha@yuktix.com) Yuktix Technologies

Open data #odc2016

Introduction

• Started with KYC, few discussions and lot of work, lets design a weather station with research grade sensors in India

• 18 stations running across Bangalore, soon to be 20

• Cost Efficient, Designed and made in India.• Many Volunteers, we are standing on the

shoulders of the giants here!

Introduction

• Open to all* - we do not restrict data access in any way.

• Use the website to view data• If you are a programmer then use API or soon

to be released Python SDK.• The technology is provided by Yuktix, smart

sensing company.

About stations

• Basic ones have Temperature, Humidity, Rain and Pressure.

• You can have more like, Wind, Solar Radiation, Ultra Violet, Soil sensors etc.

• Data link on GSM/GPRS powered by Telit GL868 modems

About stations

• Firmware is bare metal, written on AVR 8-bit core in C to simplify sensor interfacing

• The firmware contains boot loader, modem driver, I2C, SPI, UART and other support, all written by Yuktix Team

• Solar powered, PSU design is again Yuktix or you can plug a solar charger available in Market.

About stations

• Sensors can be plug and play• From 16 sensors stations to basic 4, all use the

same firmware.

About Cloud software

• Time series, Archives of data available• Graphs, reports• Device management interface• Alerts

Project Requirements

• Raw data through API/SDK• Democratic data access is important• Internet Connected• Solar Powered• Real time data and Hyper local• Know How is important

MICROCLIMATE DATA

API

• REST API – Design philosophies• module, device, channel and queries • archive, snapshot, time series data• You can write clients to get data or use python

SDK

Python SDK

FAQ

• Can I get my <X> report delivered to me?• Forecasting? • Why don’t you have an app? • Why not put it on OLA CAB?• Why are you guys not doing X,Y,Z.• Can I use the data? – Rate limit is the only concern.

Next Steps

• Better visualization interfaces• Plug into Google Cloud for petabyte queries• OTA for stations