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Showing posts from December, 2017

Building a Thermal Camera

https://damow.net/building-a-thermal-camera/ Thermal cameras have always fascinated me. I think the ability to view a part of the electromagnetic spectrum that is normally hidden from us will always be a strange and exciting thing. Unfortunately, they’re also quite expensive, especially if you’re buying one just for playing around with rather than using in some commercial capacity like thermal surveying or electronics testing. I wanted to get started with thermography without a huge price tag, so I thought I’d go all in and build my own! Obviously, this was a hugely involved process so I’ll cover a bit of each aspect here. Feel free to ask questions down in the comments and I’ll do my best to answer! 1 The Sensor I started off trying to find a microbolometer . This is the business-end of a thermal camera. This is also the expensive, difficult-to-source bit. They are commercially available as components from electronics distributors ...

Mikrotik Update 6.40.5

What's new in 6.40.5 (2017-Oct-31 13:05): *) certificate - fixed import of certificates with empty SKID; *) crs3xx - fixed 100% CPU usage after interface related changes; *) firewall - do not NAT address to 0.0.0.0 after reboot if to-address is used but not specified; *) ike1 - fixed crash after downgrade if DH groups 19,20,21 were used for phase1; *) ike1 - fixed RSA authentication for Windows clients behind NAT; *) ipsec - fixed lost value for "remote-certificate" parameter after disable/enable; *) ipv6 - fixed IPv6 addresses constructed from prefix and static address entry; *) log - properly recognize MikroTik specific RADIUS attributes; *) lte - do not reset modem when it is not possible to access SMS storage; *) lte - fixed modem initialization after reboot; *) lte - fixed PIN option after setting up the band; *) sms - include time stamps in SMS delivery reports; *) sms - properly initialize SMS storage; *) snmp - fixed "/system license" parameters for CHR;...