Hi,
two pics from my testsetup with pcb version 1.
From left to right: Display, pcb with Raspberry Pi Zero, Arduino, I2C-Bridge. In the middle IMU with own housing.
The pcb Version 2 there´s the Pi mounted face down without cables in a socket
Now I make the final Version 3 with an optional I2C-Extender cause the I2C Bus is not for distance longer then 50 cm. With luck (and a good network cable) you get 2 meters. I´m a friend of setting the IMU in his own housing.
After that I make a small pcb with the I2C extender partner for the IMU and then I try to build the Input and Display pannel.
For the inputs I work with capazitive touch sensors witch works through the housing. So I can realize a watertight housing.
The pcbs are custom made.
The Pi and the Arduino are connected via the tx/rx lines and not separated through optocouplers, but this is not a big problem.
The backlight from display is powered by 3,3V and is dimmed down with a 2,5k resistor. This is ok for night viewing and not to bright.
Regards
Andreas
two pics from my testsetup with pcb version 1.
From left to right: Display, pcb with Raspberry Pi Zero, Arduino, I2C-Bridge. In the middle IMU with own housing.
The pcb Version 2 there´s the Pi mounted face down without cables in a socket
Now I make the final Version 3 with an optional I2C-Extender cause the I2C Bus is not for distance longer then 50 cm. With luck (and a good network cable) you get 2 meters. I´m a friend of setting the IMU in his own housing.
After that I make a small pcb with the I2C extender partner for the IMU and then I try to build the Input and Display pannel.
For the inputs I work with capazitive touch sensors witch works through the housing. So I can realize a watertight housing.
The pcbs are custom made.
The Pi and the Arduino are connected via the tx/rx lines and not separated through optocouplers, but this is not a big problem.
The backlight from display is powered by 3,3V and is dimmed down with a 2,5k resistor. This is ok for night viewing and not to bright.
Regards
Andreas