![]() ![]() Improved TMC jumper settings again,simpler and easier.V2.2:Add Two 60V-Max stepper driver slot.8 TMC stepper drivers support, with Uart&SPI support.Based on STM32F446 180Mhz,all IOs can withstand 5V voltage.Re-layout the PCB, connectors position changed.All motor drive module interface communication networks add high voltage buffering and voltage clamping processing, adding a shield to the MCU.Optimize the fan control circuit, upgrade the buffer chip to independent triode control, enhance stability and greatly improve safety performance.Change 12v-24v RGB port layout to 3 fan ports, which can be used as a fan port more conveniently and still maintain RGB output support.Add pin definition silkscreen on the bottom. ![]() Add two thermistor sockets, a total of 6.Change the Raspberry Pi 5V (3A to 5A) and system 5V(5A to 3A ).Change the series diode of the driver circuit to a 15A fuse(1808).Change the Raspberry Pi 5V and system 5V to separate DC-DC circuits (3A per channel). ![]()
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