Here is the pinout for the Modular Rail from pi-top1, pi-topCEED and pi-top. This is the thing that powers all of our add-ons, so here is the pinout with the descriptions. Enjoy!
The connector is a 34 pin (17x2) 2.00mm SMT, right-angle Connector, which uses square pins. It’s the same across the pi-top1, pi-topCEED and pi-top .
|Name||Function||Voltage (Volts)||Max Current (Amps)||Descriptions|
|V_IN||Power Out||18||0.5||Input to system voltage. Can be used to power 5V and 3V3|
|5V||Power In||5||0.5||Fed by V_IN. Feeds into 3V3. Also supplies Raspberry Pi 5V. Available when system is off but will turn off when battery is below 2%|
|3V3_PRST||Power Out||3.3||0.1||Fed from V_IN|
|3V3||Power Out||3.3||0.5||Fed from 5V. Feeds into 1V2|