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Hi guys, I'm an old school software engineer. Started hacking with Linux over 30 years ago. Went on to university. Followed the money into analyst programmer roles, then IT consulting. Tried escaping it a few times, but for my sins I've found myself back on the tools working as an embedded...

Well after 30 years of working with Linux, and around 10 using it in anger for control system automation, it was a pleasant surprise to stumble across another wee utility to add to our toolset. cpulimit does exactly what it promises. You pass it a limit value in % of available CPU and a program...

Hi all Am looking for recommendations for CO2 sensors for an automated grow room. I have tried prototyping a data logger using two devices already with very disappointing results. The MH-Z19 and an SM300D2. When a pair of either of these are left running, the CO2 readings are typically...

Anyone like to have a crack at guessing how to drive this reversible motor? It drives the worm gear on the vent of a Carrier AC system. See: https://docs.google.com/document/d/1Ly4oP0t8ZDYiohIipR3WiXf97Jg8iw55MHqf7N6Na70/edit

Am repurposing a refrigerated shipping container that has a couple of these fans in it: https://www.alibaba.com/product-detail/Carrier-Transicold-54-00585-20-2_60788106493.html Each unit has 7 wires: Blue Orange Yellow White Brown Brown Green The closest I've come across is...