BBC Newsbeat abuses statistics

So the BBC has finally admitted that it understands as little about statistics and it’s use as evidence of any kind as other media organisations :


The perfect name for a job application, based on biases – BBC Newsbeat: “The names Peter, Simon and Anna were nearly as popular. Jade, Paige and Shannon were under-represented among the names at Oxford. An Eleanor is 100 times more likely to go to Oxford than a Jade. Peter Jenkins So, the evidence suggests that Peter Jenkins is a pretty good option when it comes to changing your name.”


Ah – maybe I should embrace slow-cooking on the BBQ

Ah – WHO seems to give me a good argument for my BBQ computer – the ability to slow-cook at low temperatures : 

What is processed meat? – BBC News: “Suspected carcinogenic chemicals can form during meat processing. These include N-nitroso compounds and polycyclic aromatic hydrocarbons. Cooking the meat at high temperatures, especially on a barbecue, can also produce these dangerous chemicals. However, the WHO’s experts admit that the cancer risk is ‘not yet fully understood’.”


How to connect a Dfrobot PM2.5 sensor to a raspberry Pi

The Dfrobot PM2.5 is delivered like this :


The little connector board in the middle is in effect a serial port board.

One simple way of connecting this to a Raspberry Pi is to use a FTDI/USB board where we connect the FTDI board to one of the serial ports of the Raspberry Pi.

(I know I could connect it directly to pins on one of the Raspberry Pi connectors – but this is slightly more challenging as it needs a bit of software setup)

I used a FTDI/USB board like this


The TX pin on the PM2.5 board is connected to the RX pin on the FTDI board, and then VCC and GND on the 2 boards are connected to each other.

This is includes all power and necessary communications.

On the Raspberry Pi the serial port connected to the PM2.5 will now be accessible as a device – and a separate posting will describe this.