Bosun
"is an open-source, MIT licensed, monitoring and alerting system by Stack Exchange. It has an expressive domain specific language for evaluating alerts and creating detailed notifications. It also lets you test your alerts against history for a faster development experience.
...
Runs on Linux, Windows, Mac, or any operating system supported by Go (lang)
...Supports querying OpenTSDB, Graphite, and Logstash-Elasticsearch
(time-series databases)
link from:
Four short links: 24 July 2015 - O'Reilly Radar
Particle Store | Build your connected product
$19 Proton tiny Wi-Fi development kit for creating connected projects and products for the Internet of Things.
- Particle P0 Wi-Fi module
- Broadcom BCM43362 Wi-Fi chip
- STM32F205 120Mhz ARM Cortex M3
- 1MB flash, 128KB RAM
- 802.11b/g/n
- Soft AP setup
- FCC/CE/IC certified
$39 Electron is a tiny development kit for creating cellular-connected electronics projects and products. It comes with a SIM card and an affordable data plan for low-bandwidth things. Plus it's available for more than 100 countries worldwide!
- 2.99/month for 1MB (approx. 20,000 messages per month)
- $0.99/each additional MB
- No Contracts
- STM32F205 ARM Cortex M3 microcontroller
- 1MB Flash, 128K RAM
- Cellular modem: U-Blox SARA U-series (3G) or G-series (2G)
- 36 pins total: 28 GPIOs (D0-D13, A0-A13), plus TX/RX, 2 GNDs, VIN, VBAT, WKP, 3V3, RST
- Board dimensions: 2.0" x 0.8" x 0.3" (0.5" including headers)
