Tetris for ES120 screwdriver
Download .hex file in the releases section, upload via USB.
Triple press to start the game, accelerometer to move, short press to rotate, medium press to drop, long press to exit.
- STM32F103T8U6 (ARM Cortex M3, clock frequency 72 MHz)
- SSD1306 (White 96x16 OLED Display)
- MMA8652FC (3-Axis, 12-bit Digital Accelerometer)
- L3G4200D (Angular Rate Sensor)
- Work Voltage: DC3-5V
- Material: 304 stainless steel
- No-load Speed: About 270rpm
- Electronic Torque: 2.8kgf.cm
- Maximum Torque: 30kgf.cm (manual mode)
- Screwdriver Bit: 4M hexagon
- Charging Time: 45min
- Running Time: 30min (full power)
- Charging Mode: Micro USB 5V Input
- Screen: 16*96 OLED
- Battery: 300mAh 10440 Lithium-ion battery
- Rotor: Bidirectional overrunning clutch
- Gearbox: 1: 144 Integrated planetary gearbox
- Motor: 25,000 rpm brush motor
- Main Chip: STM32
- Sensor: Angular velocity sensor
The only difference between ES121 and ES120 is the gearbox, 1:64 vs 1:144.