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2 Layer PCB Electronic Printed Circuit Boards Manufacturing With HASL The specification of 2 layers double sided PCB circuit board is 330*220 mm, whcih is used for main board of industrial control machine. The ...
...Board For DIY Project Specifications: Controller ATmega328P-AU USB to serial chip CH340G Input Voltage (recommended) 7-12V Digital IO pins 14 (of which 6 provide PWM output) Analog input pins 6 DC Current pe...