Almost perfect

Weather was calm and tracking error graph showed almost no error at all.

Keep it simple

This very basic imaging system always reminds me of how all of this started some years ago.

Components: Skywatcher EVOSTAR ED80 Pro ED APO 80/600mm + SW 0.85x Reducer/Flattener, Canon EOS 60Da w. ACK-E6 + Hutech IDAS LPS-P2 EOS Clip, Astrotrac TT320X-AG + Astrotrac TW3100 wedge @ Manfrotto 055XPROB + Manfrotto 410 Junior Geared Head and cheapo Timer Remote Controller.

Double Challenge

Running two separate image acquisition systems at the same time.

Mobile setup 2nd iteration

HEQ-5 mount, f/5.6 triplet APO, high resolution SX-814 CCD camera, Lodestar autoguider, narrowband and LRGB filter wheels, temperature compensating focuser and Imaging Source viewfinder. Everything is remote controlled.

Dogs never sleep

Everyone knows the purpose of watchdog and this DIY solution is something similar. GPRS shield with prepaid SIM card and Arduino UNO sends SMS messages into phone when temperature gets out of defined range. It can also do other interesting things like execute preprogrammed "tasks" commanded by SMS messages. Of course this device can do everything which basic UNO does.

Really simple

This DIY thermistor is based on NTC temperature sensor and relay PCB. It is programmable and can act as a heater or vice versa as a cooler.

It's cold so let's give power to the heating elements:

Oops. Now it's too hot so let's stop heating:

Temperature has fallen enough to exceed thresholds so let's start heating again:

Get smart

Get smart with S20 WiFi enabled socket. This really is a problem solver and last line of defense when everything else like computers fail. Simply switch off and on the whole system anywhere in the world with your phone app and hope for the best.