✎ machine_not_communicating_computer [Bachinmaker]

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=====Machine not communicating with computer=====

===Problem description===

Laser/Drawing/CNC machine can not be controled by computer software.


===Analyze and solve problems===

===Check if the device is connected to the computer===

Open Device Manager.

When our device is connected to the computer through the USB cable, it will be displayed as a serial USB device under Ports node.

{{:candleen3.png?nolink|}}

State Normal, Port Name is COM3. Port Name maybe different on your computer.

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Driver no installed.

Tips:

If you can not identify which device is our machine device, you can unplug the device, wait 20 seconds, plug it in again. The device that disappeared and reappeared is our device.If nothing is changed, please try another USB port, check the USB cable. If no helps, maybe the chip on the control board is broken, you need a new control board.

===Install Driver===

download ch340 driver {{ :ch340.zip |}}

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Click INSTALL：

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Wait until success：

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===Refresh Firmware===

If the device and devier seem no problem, but software on computer still can not connect to the device. Maybe the firmware on the chip was lost. Refresh firmware may slove this problem. 

Noticed:

This problems is rarely found, but it does exist. Different machine need different firmware. Flashing wrong firmware will not demage the machine, but will make it not work. We suggest you contact us before you decide to do it.

[[bachin_arduino_nano_flash_tool|Bachin Arduino Nano Flash Tool]]

Our Mail: support@bachinmaker.com