Smallcircuits site
The following site is a small selection of circuits and boards which i have worked on over the last 25 years.
Bluetooth Board
A board which reads a TEMPERTURE sensor then outputs via bluetooth or RS232
Analogue to 4-20mA convertor
This board will take a 0-5 volts input and output 4-20mA signal
> 4-20mA
> 0-5 volt input
> convertor
> wind speed
> wind direction
> small size
> chip here
> 10k pots
Weather station
This board looks at inputs and time/date stamp them and outputs via RS232
> Pic 16f84
> time and date
> Rs232
> 5 volt
> temperture
> wind speed
> wind direction
> storage
