5Pcs NE555 Pulse Generator 555 Timer Module Single-Channel Signal Output Adjustable Frequency Rectangular Wave Signal Generator for MCU Learning with Dupont Cable June2023_cocoonwix and this simple and easy-to-use

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5Pcs NE555 Pulse Generator 555 Timer Module Single-Channel Signal Output Adjustable Frequency Rectangular Wave Signal Generator for MCU Learning with Dupont Cable June2023_cocoonwix and this simple and easy-to-use5Pcs NE555 Pulse Generator 555 Timer Module Single Channel Signal Output Adjustable Frequency Rectangular Wave Signal Generator for MCU Learning with Dupont Cable Specification: 1. Onboard NE555 chip 2. Single channel signal output, the output duty cycle is about 50% square wave 3. On board adjustable resistance, adjusting the resistance value can control the output frequency 4. Onboard power indicator 5. Working voltage: 5? 12V 6. The output