[Device schematic (pdf)](https://github.com/Flipper-Zero/wiki/raw/master/Flipper_zero_rev_1_0.pdf) ## Errata * NAND reset IC drive reset net by push-pull output may cause MCU fault and disable internal MCU reset feature. * System going to boot-loop state when reset by reset circuit * No series resistors on external gpio for protecting MCU * Wrong value LED series resistor * Wrong footprint for CMOS transistors * Wrong value IR TX series resistor * No need capacitor on IR RX * Wrong value IR RX pullup resistor * 125 kHz RFID + iButton wrong schematic * It seems bad to place main VCC on external GPIO pins. Overcurrent can damage main regulator and cause device broken. User can apply wrong voltage on this pin. ### New RFID + iButton schematic after many experiments we found good schematic solution for work with RFID and auxiliary follow iButton level (for non-TTL protocol like Cyphral) ![new RFID + iButton schematic](https://github.com/Flipper-Zero/wiki/raw/master/images/new-rfid-ibutton-sch.png)