SPECIFICATIONS

3D printer --ramps -1.4- controller module
1: For 3D printer, supporting circuit module is required
2: Arduino 2560 CPU core board
3: Ramps1.4 control board quality control board (single head 4 pieces, double head 5 pieces)
4: LCD LCD controller, which can be controlled by LCD, and SD card offline printing (optional).

A4988 stepper motor driver module-3d printer 16 subdivision
1: Low RDS (on) output.
2: Automatic current decay mode detection / selection.
3: Mixed and slow current decay mode.
4: Synchronous rectification for low power consumption.
5: Internal UVLO.
6: Cross current protection.
7: 3.3 and 5V compatible logic power supply.
8: Thermal shutdown circuit.
9: Ground short circuit protection.
10: Load short circuit protection.
11: Five optional progressive modes: full, 1/2, 1/4, 1/8 and 1/16

A4988-drv8825 stepper motor drive control board
This product is mainly aimed at the vibrating lines produced by 3D printers with parallel structure,
In particular, the effect of using 8825 drive and low resistance motor is obvious,
It can effectively eliminate the uneven signal wave under the condition of low speed, so as to achieve
the relatively reliable signal wave,
The effect is obvious in the 24V power delta model driven by 8825.
Warm tips: the effect varies according to the situation of the machine and motor.

At2100 stepper motor driver module 3D printer 32 subdivision
1: Low on resistance RDS (on), output 2.5A peak current.
2: Simple step/dir interface, height limit supports 16 subdivisions.
3: Support interpolation and subdivision. Auto interpolate to 256 subdivisions.
4: Support voltage attenuation, silent operation and smooth operation.
5: 3.3 and 5V compatible logic power supply.
6: Overheat shutdown function.
7: Output overcurrent protection.

Interface definition
Dir: direction control input
Step:step pulse input
En: enable key
VDD:3.3V - 5V (DC)
O1b: full bridge B output 1 end
O1A: full bridge a output 1 end
O2A: full bridge a output 2 terminal
O2b: full bridge B output 2 terminal
VBB: motor power supply

Drv8825 stepper motor driver board 3D printer 16 subdivision:
Product features:
1: The maximum current limit is 2.5A.
2: Height limit supports 32 subdivisions.
3: 4-layer PCB board with good heat dissipation performance.
4: The chip has smaller internal resistance, lower heating and good heat dissipation.
Product parameters:
Drivable current: 2.5A
Subdivision: 1, 1/2, 1/4, 1/8, 1/16, 1/32
Manufacturing process: SMT Mounter manufacturing, non manual welding, more stable performance

Drv8825 stepper motor stripper 3D printer
1: A4988 /drv8825 can be used. Pay attention to the direction when inserting, otherwise the drive may be burned.
2: When the jumper is turned to the position of on DP, it means 16 subdivisions (4988) or 32 subdivisions (8825).
3: JM connect the motor.
4: JV is connected to 5V and 12V -24v power supply.
5: The esdg of JC respectively corresponds to enablestapdirgnd on the connection

Lv8729 stepper motor driver 128 high subdivision
Product features
1: Good mute effect can be achieved only when 64 or 128 subdivisions are used
2: Working voltage: 6V - 36V, 12V is recommended.
3: The maximum current limit is 1.5A.
4: Subdivision: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128.
5: Heat sink shall be added to ensure good heat dissipation (please use large
Fan assisted cooling).
Warm tips: please confirm the direction when powering on. If it is reversed, the chip will be damaged.

Product parameters
Driving current: 1.8A
Maximum voltage: 36V
Support segmentation: 1,1/2,1/4,1/8, /16,1/32,1/64,1/128
Product process: four layer PCB board.

Tmc2208 stepper motor driver module 256 subdivision
1: Up to 256 subdivisions.
2: No out of step during high load driving.
3: The logic interface level is 3-5v.
4: Input voltage range: 4.75-36v dc
5: The subdivision mode can be divided into 2, 4, 8 and 16 segments.
6: The steelthchop2 can drive the motor to work. In the case of extreme silence, it can control the motor sound below 10dB dB,
which is much lower than the traditional current control mode.
7: In the traditional stepping motor drive scheme, when the current crosses zero point, there will be an over current or called
current dead zone. At this time, there is no current in the motor coil.
This is a major factor causing motor vibration. Spreadcycle ensures the smooth transition of the stepping motor when the stepping
motor is over the respect point without dead zone current. The tmc2208 stepping motor drive chip has almost no jitter.
8: The spreadcycle PWM new wave mode automatically configures a hysteresis attenuation function between the slow and fast
attenuators.
The average current reflects that the configured normal current will not have a transition period when the sine wave crosses the
zero point, which reduces the current and torque fluctuations and makes the current waveform closer to the sine wave. Compared
with the traditional constant chopper type,,
The motor under the control of spreadcycle PWM chopper mode should run smoothly.

V3 engraving machine expansion board-a4988 drive board module
Product features
1: The SD card holder is integrated in the back. After the sliced file is put into the SD card, select the corresponding file on the LCD to print.
2: The product comes with an encoder, which can realize parameter adjustment and file selection printing.
3: Plug and play on ramps, but the firmware needs to be modified to support.
4: Support Chinese font, modify Marlin firmware to display Chinese menu, and study the modification method by yourself.