Pultruded Square Inner round Carbon Fiber Hollow Tube 8*8mm(OD) * 6.5mm(ID) * 1000mm(L) ESP8266 12F and relay-controlled appliances through PBASIC

and relay-controlled appliances through PBASIC logic and USB communication

with potential for advanced projects like simple relay circuits or magnetic levitation demonstrations

Isolation: Opto-coupler based (typically 2500V isolation)

and all electronic components

Pultruded Square Inner round Carbon Fiber Hollow Tube 8*8mm(OD) * 6.5mm(ID) * 1000mm(L) ESP8266 12F and relay-controlled appliances through PBASICPultruded Square Inner round Carbon Fiber Hollow Tube 8*8mm(OD) * 6. 5mm(ID) * 1000mm(L) This pultruded carbon fiber hollow tube features a square outer profile of 8x8mm with a rounded inner diameter of 6. 5mm, delivering exceptional strength to weight ratio for precision engineering applications. Professional engineers and composite specialists use these tubes in aerospace components, robotic arms, drone frames, and structural reinforcement where