E-design ES121 Motion Control Screwdriver (Steel) for Mini Screwdriver Set 

Sales Link:

https://www.ebay.com/itm/352240468470

Resource download:

http://www.minidso.com/forum.php?mod=viewthread&tid=1733

Hardware Parameters

Body Material    304 Stainless steel/Copper alloy

Screen              16*96 OLED

Battery                300mAh 10440 Lithium-ion battery

Length               131mm

Weight              108g(Steel)/111g(Pearl)

Rotor                Bidirectional overrunning clutch

Gearbox            1:64 Integrated planetary gearbox

Motor                25,000 rpm brush motor

Main Chip          STM32

Sensor              Angular velocity sensor

Smart Functions

1.Battery low voltage reminder, low voltage protection mode;

2.User ustomized configuration parameters (such as torsion, torque, etc);

3.Open source application layer.