This afforable Geiger Counter that works as standalone device and also can connect to other external devices (like RaspberryPi/Arduino or other GPIO devices) to send the "clicks" thru GPIO interface.
The Arduino code for the Geiger counter is available here:
- Pin D2 --> Arduino interruption
- Pin D7 --> Buzzer
- Pin D8 -->...
A board to break out Raspberry PI GPIO into db9 Sega ports and gamecon supported devices
Gamecon and db9 driver rules apply. There's no magic here, just a simple breakout board.
The I2C port is only usable when using just the DB9 ports.
This is a Raspberry Pi Shield. 12V DC to input. The board will power the Pi through the GPIO using a switch power supply based around the ACT4065A IC. The input 12V comes in through the DC "IN" barrel Jack. Then is turned on and off through the TIP120 NPN Transistor which is controlled through GPIO 4 on the Pi and outputs the barrel Jack labeled "OUT". There is also another TIP120 NPN transistor c...
*** DANGER - HIGH VOLTAGE ***
*** UNTESTED ***
This is a simple circuit which allows a micro controller or Raspberry Pi to monitor a 230V AC signal. The 230V power from the mains is applied to the upper terminal. On the lower terminal one has to provide the supply voltage and ground reference. The circuit will output a clock-like signal, which is high by default, but goes low every time the 23...