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virtualSatai

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[ my public key: https://keybase.io/satai; my proof: https://keybase.io/satai/sigs/Wlcnid2rWb9vkuArRGldAd8UaesPM8CEN1jbvCYJVmM ]

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End Geoblocking 10 years ago

Wouldn't it make sense for the BBC to sell their service to people outside of the UK? Aren't they allowed to? Or do they already?

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Show HN: PJON_ASK – Radio multimaster communications bus system for Arduino 11 years ago

Internally RadioHead and VirtualWire uses a 4to6 bit en-/de-coding. Their reasoning is that if your payload is either high or low for too long, "for a good DC balance". have you experianced anything related to this? You but in 0b01 padding before each byte, maybe this is enough. Your solution is substantially lower overhead.

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Show HN: PJON_ASK – Radio multimaster communications bus system for Arduino 11 years ago

You speak a lot about VirtualWire, this is no longer used. It was been replaced with RadioHead. There are no significant feature differences, afaik.

I'll try this out tomorrow, using say 5 Arduinos with 433 MHz radios.

What antennas do you use for the radio modules? We've used quarter-wave monopole of 17.3 cm on both the receiver and transmitter with some success.

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Tupper's Self-Referential Formula 11 years ago

You have a pixel grid of 17 x 106, anything you want to drawn in it can be.

To draw an arbitrary figure do this: Start with the pixel in the lowest left corner, if black put 1 as the first digit of a binary number else put 0, then continue first up then one right, the down. Convert this (1802 digit) binary number to decimal and use it as input for the function and there it is.

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Simple CPU 12 years ago

The gates with the simple toggle functions are really good and simple to use. It reminds me of playing around with redstone in minecraft.

Knowing most if not all of this already I cannot say how well it teaches, but it does describe what I spent much longer on learning.

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Dear Instagram 12 years ago

Bolt.co registered 2010-07-21

Bolt.cm registered 2012-09-19

Bolt.cd earliest record 2011-01-04

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