Based on Arduino 2560, compatible with RAMPS 1.4 pin configuration, All in one solution, small volume, especially suitable for MINI type 3d printers.
Provide a heating end, MAX 240W (here range according to MOS parameters)
Support the hot bed MAX 240W (maximum current is not more than 10A, recommended temperature below 100 degrees Celsius).
Power supply: 12 or DC 24V (can use notebook computer power supply or other switching power supply).
Two way temperature measurement (thermistor) input, one for the hotbed, one for the heater.
Six limit switches, 3 min, 3 max (six switches are recommended, which can avoid collision).
Reserved I2C expansion port, ESP-01 WIFI module interface to facilitate the user to add functionality.
One way adjustable fan interface, two power supply interface (can be used for fixed output of the fan or LED and other equipment).
The onboard TF deck, and perpendicular to the surface, beautiful and convenient place.
Integrated 2.4 inch 12864 display, can be achieved in Chinese or English (depending on the firmware).
The output voltage of heater, hotbed, FAN/LED and PWM fan is equal to the input voltage. These interfaces are 12V when using 12V power supply. These interfaces are 24V when using 24V power supply.
Limit switches are connected in S (signal terminal) /GND in default, used for mechanical limit switch (also can be connected with a photoelectric switch used in S (signal end)/GND/5V, this time need to change white transposon to the welding pin headers)
I2C interface, in order from left to right: SCL, SDA, GND, 5V.