Asked
Resolved by DJ Sures!
Is it possible to connect an I2C device to the EZB v4/2 with just the SDA and the SCL lines connected with the device its self getting its voltage from a higher voltage source (Greater than 3.3v)?
Related Hardware (view all EZB hardware)
EZ-B V4
by EZ-Robot
EZ-B v4/2 robot controller: dual Cortex ARM, Wi-Fi, audio/video, 24 servo/digital ports, I2C/UART, camera and Synthiam ARC control for custom robots
Wi-Fi / USB
Servos
24
Camera
Audio
UART
3
I2C
ADC
8
Digital
24
If you share the grounds. Common grounds are necessary for reference voltage.
Yup of course! Great thanks!
Always good to think of ground as the actual ground. And voltage as how high you can reach. If we stand next to each other on the ground, one of us can reach higher (or have higher voltage) than the other.
so ground is always a reference to know the amount of voltage. Ground is also super important because if it’s not shared, or has resistance, the voltage can actually be higher - and release magic smoke.
amazing how important a common ground is. And how simple of a thing it is if it’s explained in the correct example
Great explanation!