pcf8575-test

Small tests with Rpi like hardware, i2c bus, pcf 8575 and leds...

Just to make leds blinking for hardware and sofware tryouts....

hardware

• orangepi one plus / raspberrypi
• pcf8575 (i2c port extender 16 ports)
• resistors : 1k, 100k, ...
• 2n2907
• leds

releases

• v1.0 : https://github.com/eanceleur/pcf8575-test/wiki/Release-v1.0

• v1.1 : https://github.com/eanceleur/pcf8575-test/wiki/Release-v1.1

• v2.0 : https://github.com/eanceleur/pcf8575-test/wiki/Release-v2.0

• v3.0 : https://github.com/eanceleur/pcf8575-test/wiki/Release-v3.0

useful links

• http://www.orangepi.org/OrangePiOneplus/
• https://pinout.xyz/pinout/i2c#
• http://www.ti.com/lit/ds/symlink/pcf8575.pdf
• https://www.fairchildsemi.com/datasheets/MM/MMBT2907A.pdf