Tag Archives: linux scripting

Ha! Ahead of the curve much? Ethereum crypto-radiator

Just in case you were thinking my crypto radiator was a whacky idea…plus mine’s waaaaay cheaper.

https://thenextweb.com/tech/2017/10/13/russian-ethereum-heater-cryptominer/

Crypto-radiator update – the quest for 100% efficiency and beyond

So a few little updates on the crypto-radiator (see previous post HERE) …I’ve had quite a few bits and bobs going on with cryptocurrencies in general recently and partially inspired by Monero’s recent run to over $100 I had some ideas for how to improve the efficiency of the system.

So far it’s been mining on the CPU only, which outputs about ~60Hashes/sec (H/s), clearly not gonna be profitable but the more I’ve thought about this, the more it’s highlighted the importants of the “primary reward” as a factor.

By that I mean – if you’re purely mining crypto to make profit then you have quite a tricky task, and you end up in quite a precarious position since if your system isn’t profitable (which can happen at any moment) you’re shit-outta-luck and potentially thousands of $$ in the hole.

However if your primary reward is *heat*, and you’re only using mining crypto as a way of recouping some of that cost, the situation looks a lot more favourable…since heating is something you’d have to pay for anyway, and if you can get it significantly cheaper then you’re winning, even if it fluctuates a bit.

Continue reading Crypto-radiator update – the quest for 100% efficiency and beyond

Adding a “thermostat” to the the crypto-radiator with the Microdia TEMPer USB temperature sensor

So just a little update re the crypto-radiator – I’ve since got the TEMPer USB thermal probe working on the machine and have set it to log temperatures.

There is however a slight issue in that the usb ports are on the back of the machine and that’s also where the warmed air comes out , so the heat from that does affect the reading from the TEMPer device somewhat, which means the temperature reading can’t really be relied upon to be entirely accurate.

Continue reading Adding a “thermostat” to the the crypto-radiator with the Microdia TEMPer USB temperature sensor

Crypto-Radiator – Saving money on heating by mining cryptocurrency (xmr/monero)

No really!…actually this is perhaps not quite as silly as it might sound.

Continue reading Crypto-Radiator – Saving money on heating by mining cryptocurrency (xmr/monero)

How to turn your Raspberry Pi and an old printer into a print server you can use from any device (including phones & tablets)

How handy would it be to have a shared network folder where you can drop a PDF to print and it just magically pops out of the printer a couple of mins later? Especially since you can print to PDF from pretty much any platform or device..including mobile phones and tablets. Pretty handy I think! Especially if you can do so with pretty much any old (or even ancient) printer rather than having to buy a funky new bluetooth/wireless one.

Here’s how to do just that…

[EDIT: btw I keep coming back to this howto every time the microSD in the pi which runs our CCTV dies, so it should actually be relatively up to date (~2ys} xD]

Continue reading How to turn your Raspberry Pi and an old printer into a print server you can use from any device (including phones & tablets)