“I come back with a tool to help you prototype arduino projects easier!!!Many DIY Projects contain LED and switch. Building prototype circuit on breadboard costs a lot of space and time, and makes breadboard messy. So I came up with these 2 modules to help you reduce your amount of work on breadboard from LED and switch. LED module can connect to 5 sources with common ground or individual ground. Switch module contains 5 push button switch with pull-down resistor.”
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