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$12.89
Raspberry pi 4 Model B aluminum silver case, with Fan Heatsink
ESP32-S3-Touch-LCD-2.8-D
ESP32-S3 And 2.8inch Round LCD Kit N8R8 Captive TouchScreen Display 480x480
USB-TO-TTL-(B)
Industrial USB TO TTL Converter, Original CH343G, Multi Protection & Systems Support
Pico-Dual-/-Quad-Expander
Raspberry Pi Pico Pico Dual / Quad Expander Two Sets of Male Headers
RS485-TO-ETH
RS485 to Ethernet Converter