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Posts Tagged ‘mains’

PCB a Week 7: Mains log sensor

Monday, February 4th, 2013

Mats continues his challenge of designing one PCB every week. In week 7 he designed a voltage and frequency logger for household mains power supply. The device is designed around the ATtiny45 microcontroller which records the frequency and voltage, and passes measurements through an onto-coupler to an isolated logging board....

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Posted in PCBs | No Comments »

Safe enclosures for solid state relays and mains current

Thursday, December 20th, 2012

Solid state relays can switch everyday mains-powered devices like lamps, but there's danger inherent in working with household AC voltage. Victor wrote a tutorial on how to enclose the SSR in an old laptop power supply case. It's simple to build, and it keeps you and your fingers safer than...

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Posted in DIY | 2 Comments »

Recent Comments

  • hli: Sunday++
  • Max: Jolly good stuff, although the "include 100 W resistors in series with the inputs and outputs" part is quite hilarious until one realizes* they meant...
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