NetTherm follow-ons

From neurotica.com

The original NetTherm took a long time to bring to market for one very good reason: the design is very generic. It is a device that measures temperature and humidity, but only about 5% of the hardware and 5% of the firmware has anything to do with environmental monitoring. The rest is a very generic embedded system, consisting of a processor, memory, Ethernet interface, a multitasking operating system, an IP networking stack, and implementations of the SNMP, HTTP, NTP, and Telnet protocols. Using this base design, I can create many different types of products in very little time, as most of the hardware and firmware is already built and debugged.

The first follow-on to NetTherm is called NetContacts. It looks very similar to a NetTherm unit, except there's a row of screw terminals on one end to which one can connect pairs of contacts...magnetic reed switches, mercury switches, pushbuttons...pretty much any type of contacts you can think of. The open/closed state of these pairs of contacts are pollable via SNMP, and the device can optionally be programmed to send out SNMP traps on contact state changes, all on a contact-by-contact basis.

The next project is NetRelays, which is four SNMP-controllable relays with standard NO/NC (normally open/normally closed) contacts. The state of each relay can be independently controlled and read via SNMP.

Photos

NetContacts prototype

NetRelays prototype

Other projects are in the works. I'm currently working on a digital multimeter, a geiger counter, and a one-wire weather station controller, all SNMP-controllable, and all built on the same base design.

Contact me for further information, including pricing and availability, for these products. Use the "Contact Me" page.