Open Brain Surgery for EBikes and EScooters

An ebike motor with the controller cover removed. A number of wires and connectors take up most of the space in the cavity.

Personal Electric Vehicles (PEVs) all contain the same basic set of parts: a motor, a battery, a motor controller, some sensors, and a display to parse the information. This simplicity …read more Continue reading Open Brain Surgery for EBikes and EScooters

Supercon 2022: Bradley Gawthrop Wants You to Join the PEV Revolution

A man in a dark shirt stands at a podium in front of a projector screen with the text "50% OF US CAR TRIPS" in white above yellow text saying "1 HUMAN < 3 MILES". The screen is flanked by decor saying "Supercon" in white on a black background.

During the 20th Century, much of the western world decided that motor vehicles were the only desirable form of transportation. We built our cities to accommodate cars through parking, stop …read more Continue reading Supercon 2022: Bradley Gawthrop Wants You to Join the PEV Revolution

Xiaomi Scooter Firmware Hacking Gets Hands-On

A Xiaomi 3 Lite dashboard with the panel taken off and the PCB visible, four wires connected to the SWD header.

Scooter hacking is wonderful – you get to create a better scooter from a pre-made scooter platform, and sometimes you can do that purely through firmware modifications. Typically, hackers have …read more Continue reading Xiaomi Scooter Firmware Hacking Gets Hands-On

Xiaomi Cryptographically Signs Scooter Firmware – What’s Next?

The dash of Xiaomi Mi 1S scooter, with the top panel taken off and an USB-UART adapter connected to the dashboard, sniffing the firmware update process

[Daljeet Nandha] from [RoboCoffee] writes to us, sharing his research on cryptographic signature-based firmware authenticity checks recently added to the Xiaomi Mi scooter firmware. Those scooters use an OTA firmware …read more Continue reading Xiaomi Cryptographically Signs Scooter Firmware – What’s Next?