5Pcs NE555 Pulse Generator 555 Timer Module Single-Channel Signal Output Adjustable Frequency Rectangular Wave Signal Generator for MCU Learning with Dupont Cable auspowers_batchone Important Precaution: 1Please connect Bluetooth

Important Precaution: 1Please connect Bluetooth from APP

Widely Used: 4-inch duct clamps are widely used to secure all manner of duct components like ducting

2 sets male& female hydraulic couplers with protector dust caps

0 chipset combining A2DP comes with stable connectivity and remarkable signal stability

Customizable Cold Chain Management: You can start the logger by downloading the free software in the manual and presetting the start delay

5Pcs NE555 Pulse Generator 555 Timer Module Single-Channel Signal Output Adjustable Frequency Rectangular Wave Signal Generator for MCU Learning with Dupont Cable auspowers_batchone Important Precaution: 1Please connect Bluetooth5Pcs 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